|Also known as:|
|Category||Second-level administrative division|
|Location||States, federal district and territories of the United States of America|
|Number||3,242 (including 135 county equivalents in the 50 states and the District of Columbia, and the 100 county equivalents in the U.S. territories)|
|Populations||Greatest: Los Angeles County, California—10,170,292 (2015)|
Least: Kalawao County, Hawaii—89 (2015)
8 entities (county equivalents)—0 (2018)
Average: 103,554 (2017)
|Areas||Largest: San Bernardino County, California—20,057 sq mi (51,950 km2)|
Yukon-Koyukuk Census Area, Alaska (county equivalent)—145,505 sq mi (376,860 km2)
Smallest: Kalawao County, Hawaii—12 sq mi (31 km2)
Independent City of Falls Church, Virginia (county equivalent)—2 sq mi (5.2 km2)
Smallest (including territories): Kingman Reef (county equivalent)—0.01 sq mi (0.026 km2)
Average: 1,208 sq mi (3,130 km2)
|Government|| County commission, Board of Supervisors (AZ, CA, IA, MS, VA, WI) County council (WA), Commissioners' Court (TX), Board of chosen freeholders (NJ), Fiscal Court (KY), Police Jury (LA)|
County executive, County mayor, County judge, County manager, Sole commissioner
|Subdivisions|| Township |
| Administrative divisions|
of the United States
In the United States, an administrative or political subdivision of a state is a county, which is a region having specific boundaries and usually some level of governmental authority.The term "county" is used in 48 U.S. states, while Louisiana and Alaska have functionally equivalent subdivisions called parishes and boroughs respectively.
The United States of America (USA), commonly known as the United States or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.
An administrative division, unit, entity, area or region, also referred to as a subnational entity, constituent unit, or country subdivision, is a portion of a country or other region delineated for the purpose of administration. Administrative divisions are granted a certain degree of autonomy and are usually required to manage themselves through their own local governments. Countries are divided up into these smaller units to make managing their land and the affairs of their people easier. A country may be divided into provinces, which, in turn, may be divided in whole or in part into municipalities.
In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.
Most counties have subdivisions which may include municipalities and unincorporated areas. Others have no further divisions, or may serve as a consolidated city-county. Some municipalities are in multiple counties; New York City is uniquely partitioned into five counties, referred to at the city government level as boroughs.
Local government in the United States refers to governmental jurisdictions below the level of the state. Most states and territories have at least two tiers of local government: counties and municipalities. In some states, counties are divided into townships. There are several different types of jurisdictions at the municipal level, including the city, town, borough, and village. The types and nature of these municipal entities vary from state to state.
In United States local government, a consolidated city-county is a city and county that have been merged into one unified jurisdiction. As such it is simultaneously a city, which is a municipal corporation, and a county, which is an administrative division of a state. It has the powers and responsibilities of both types of entities.
The City of New York, usually called either New York City (NYC) or simply New York (NY), is the most populous city in the United States. With an estimated 2018 population of 8,398,748 distributed over a land area of about 302.6 square miles (784 km2), New York is also the most densely populated major city in the United States. Located at the southern tip of the state of New York, the city is the center of the New York metropolitan area, the largest metropolitan area in the world by urban landmass and one of the world's most populous megacities, with an estimated 19,979,477 people in its 2018 Metropolitan Statistical Area and 22,679,948 residents in its Combined Statistical Area. A global power city, New York City has been described as the cultural, financial, and media capital of the world, and exerts a significant impact upon commerce, entertainment, research, technology, education, politics, tourism, art, fashion, and sports. The city's fast pace has inspired the term New York minute. Home to the headquarters of the United Nations, New York is an important center for international diplomacy.
The United States Census Bureau uses the term "county equivalent" to describe places that are comparable to counties, but called by different names. Louisiana parishes; the organized boroughs of Alaska; the District of Columbia; and the independent cities of the states of Virginia, Maryland, Missouri, and Nevada are equivalent to counties for administrative purposes. Alaska's Unorganized Borough is divided into 10 census areas that are statistically equivalent to counties. As of 2018, there are currently 3,142 counties and county-equivalents in the 50 states and the District of Columbia. If the 100 county equivalents in the U.S. territories are counted, then the total is 3,242 counties and county-equivalents in the United States.
The United States Census Bureau is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the U.S. Department of Commerce and its director is appointed by the President of the United States.
In the United States, an independent city is a city that is not in the territory of any county or counties with exceptions noted below. Of the 41 independent U.S. cities, 38 are in Virginia, whose state constitution makes them a special case. The three independent cities outside Virginia are Baltimore, Maryland; St. Louis, Missouri; and Carson City, Nevada. The U.S. Census Bureau uses counties as its base unit for presentation of statistical information, and treats independent cities as county equivalents for those purposes. The most populous of them is Baltimore, Maryland.
Virginia, officially the Commonwealth of Virginia, is a state in the Southeastern and Mid-Atlantic regions of the United States located between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most populous city, and Fairfax County is the most populous political subdivision. The Commonwealth's estimated population as of 2018 is over 8.5 million.
The number of counties per state ranges from the 3 counties of Delaware to the 254 counties of Texas.
Delaware is one of the 50 states of the United States, in the South-Atlantic or Southern region. It is bordered to the south and west by Maryland, north by Pennsylvania, and east by New Jersey and the Atlantic Ocean. The state takes its name from Thomas West, 3rd Baron De La Warr, an English nobleman and Virginia's first colonial governor.
Texas is the second largest state in the United States by both area and population. Geographically located in the South Central region of the country, Texas shares borders with the U.S. states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the southwest, and has a coastline with the Gulf of Mexico to the southeast.
The specific governmental powers of counties vary widely between the states. Counties have significant functions in all states except Rhode Island and Connecticut, where county governments have been abolished but the entities remain for administrative or statistical purposes. The Commonwealth of Massachusetts has removed most government functions from eight of its 14 counties.
Rhode Island, officially the State of Rhode Island and Providence Plantations, is a state in the New England region of the United States. It is the smallest state in area, the seventh least populous, the second most densely populated, and it has the longest official name of any state. Rhode Island is bordered by Connecticut to the west, Massachusetts to the north and east, and the Atlantic Ocean to the south via Rhode Island Sound and Block Island Sound. It also shares a small maritime border with New York. Providence is the state capital and most populous city in Rhode Island.
Connecticut is the southernmost state in the New England region of the United States. As of the 2010 Census, it has the highest per-capita income, Human Development Index (0.962), and median household income in the United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capital is Hartford and its most populous city is Bridgeport. It is part of New England, although portions of it are often grouped with New York and New Jersey as the Tri-state area. The state is named for the Connecticut River which approximately bisects the state. The word "Connecticut" is derived from various anglicized spellings of an Algonquian word for "long tidal river".
Massachusetts, officially the Commonwealth of Massachusetts, is the most populous state in the New England region of the northeastern United States. It borders on the Atlantic Ocean to the east, the states of Connecticut and Rhode Island to the south, New Hampshire and Vermont to the north, and New York to the west. The state is named after the Massachusett tribe, which once inhabited the east side of the area, and is one of the original thirteen states. The capital of Massachusetts is Boston, which is also the most populous city in New England. Over 80% of Massachusetts's population lives in the Greater Boston metropolitan area, a region influential upon American history, academia, and industry. Originally dependent on agriculture, fishing and trade, Massachusetts was transformed into a manufacturing center during the Industrial Revolution. During the 20th century, Massachusetts's economy shifted from manufacturing to services. Modern Massachusetts is a global leader in biotechnology, engineering, higher education, finance, and maritime trade.
The county with the largest population, Los Angeles County (10,170,292),and the county with the largest land area, San Bernardino County, border each other in Southern California (however four boroughs in Alaska are larger in area than San Bernardino).
Los Angeles County, officially the County of Los Angeles, in the Los Angeles metropolitan area of the U.S. state of California, is the most populous county in the United States, with more than 10 million inhabitants as of 2018. As such, it is the largest non–state level government entity in the United States. Its population is larger than that of 41 individual U.S. states. It is the third-largest metropolitan economy in the world, with a Nominal GDP of over $700 billion—larger than the GDPs of Belgium, Norway, and Taiwan. It has 88 incorporated cities and many unincorporated areas and, at 4,083 square miles (10,570 km2), it is larger than the combined areas of Delaware and Rhode Island. The county is home to more than one-quarter of California residents and is one of the most ethnically diverse counties in the U.S. Its county seat, Los Angeles, is also California's most populous city and the nation's second largest city with about 4 million people.
San Bernardino County, officially the County of San Bernardino, is a county located in the southern portion of the U.S. state of California, and is located within the Greater Los Angeles area. As of the 2010 U.S. Census, the population was 2,035,210, making it the fifth-most populous county in California, and the 12th-most populous in the United States. The county seat is San Bernardino.
Southern California is a geographic and cultural region that generally comprises California's southernmost counties, and is the second most populous urban agglomeration in the United States. The region contains ten counties: Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, San Luis Obispo, Ventura, and Kern counties.
Territories of the United States do not have counties (except for American Samoa, which does have them);instead, the United States Census Bureau divides them into county equivalents. While America Samoa does have its own counties, the U.S. Census Bureau counts American Samoa's districts and atolls as county-equivalents.
Counties were among the earliest units of local government established in the Thirteen Colonies that would become the United States. Virginia created the first counties in order to ease the administrative workload in Jamestown. The House of Burgesses divided the colony first into four "incorporations" in 1617 and finally into eight shires (or counties) in 1634: James City, Henrico, Charles City, Charles River, Warrosquyoake, Accomac, Elizabeth City, and Warwick River.America's oldest intact county court records can be found at Eastville, Virginia, in Northampton (originally Accomac) County, dating to 1632. Maryland established its first county, St. Mary's, in 1637, and Massachusetts followed in 1643. Pennsylvania and New York delegated significant power and responsibility from state government to county governments and thereby established a pattern for most of the United States, although counties remained relatively weak in New England.
When independence came, "the framers of the Constitution did not provide for local governments. Rather, they left the matter to the states. Subsequently, early state constitutions generally conceptualized county government as an arm of the state." In the twentieth century, the role of local governments strengthened and counties began providing more services, acquiring home rule and county commissions to pass local ordinances pertaining to their unincorporated areas.
In some states, these powers are partly or mostly devolved to the counties' smaller divisions usually called townships, though in New York, New England and Wisconsin they are called "towns". The county may or may not be able to override its townships on certain matters, depending on the state constitution.
The newest county in the United States is the city and county of Broomfield, Colorado, established in 2001 as a consolidated city-county.The newest county-equivalents are the Alaskan boroughs of Skagway established in 2007, Wrangell established in 2008, and Petersburg established in 2013.
A consolidated city-county is simultaneously a city, which is a municipality (municipal corporation), and a county, which is an administrative division of a state, having the powers and responsibilities of both types of entities. There are 40 consolidated city-counties in the U.S.,including Augusta, Georgia; Denver, Colorado; Indianapolis, Indiana; Jacksonville, Florida; Louisville, Kentucky; Lexington, Kentucky; Kansas City, Kansas, Nashville, Tennessee; New Orleans, Louisiana; Philadelphia, Pennsylvania; and San Francisco, California.
Similarly, some of Alaska's boroughs have merged with their principal cities creating unified city-boroughs. Some such consolidations and mergers have created cities that rank among the geographically largest cities in the world, though often with population densities far below those of most urban areas.
The term county equivalents is used to describe divisions whose organization differs from that of most counties:
Consolidated city-counties are not designated county-equivalents for administrative purposes; since both the city and the county at least nominally exist, they are properly classified as counties in their own right. The same is true of the boroughs of New York City, each of which is coextensive with a county of New York State.
There are no counties per se in U.S. territories. American Samoa has its own counties, but the U.S. Census Bureau does not count them as counties (instead, the U.S. Census Bureau counts American Samoa's 3 districts and 2 atolls as county equivalents).American Samoa's counties are treated as minor civil divisions. Most territories are directly divided into municipalities or similar units, which are treated as equivalent of counties for statistical purposes:
The U.S. Census Bureau counts all of Guam as one county-equivalent (with the FIPS code 66010),while the USGS counts Guam's election districts (villages) as county-equivalents. The U.S. Census Bureau counts the 3 main islands in the U.S. Virgin Islands as county-equivalents, while the USGS counts the districts of the U.S. Virgin Islands (of which there are 2) as county-equivalents.
The site of a county's administration, and often the county courthouse, is called the county seat ("parish seat" in Louisiana, or "borough seat" in Alaska). Several New England counties use the term "shire town" for the county seat.
Many counties are divided into smaller political or governmental units. In Northeastern and Midwestern states, counties are divided into civil townships (or "towns" in New England, New York, and Wisconsin), which may provide governmental or public services.
Common sources of county names are names of people, geographic features, places in other states or countries, Native American tribes, and animals. Quite a few counties bear names of French or Spanish origin.
Counties are most often named for people, often political figures or early settlers, with over 2,100 of the 3,144 total so named. The most common county name, with 31, is Washington County, for America's first president, George Washington. Up until 1871, there was a Washington County within the District of Columbia, but it was dissolved by the District of Columbia Organic Act. Jefferson County, for Thomas Jefferson, is next with 26. The most recent president to have a county named for him was Warren G. Harding, reflecting the slowing rate of county creation since New Mexico and Arizona became states in 1912. The most common names for counties not named after a president are Franklin (25), Clay (18), and Montgomery (18).
After people, the next most common source of county names are geographic features and locations, with some counties even being named after counties in other states, or for places in countries such as the United Kingdom. The most common geographic county name is Lake. Native American tribes and animals lend their names to some counties. Quite a few counties bear names of French or Spanish origin, including Marquette County being named after French missionary Father Jacques Marquette.
The county's equivalent in the state of Louisiana, the parish (Fr. paroisse civile and Sp. parroquia) took its name during the state's French and Spanish colonial periods. Before the Louisiana Purchase and granting of statehood, government was often administered in towns where major church parishes were located. Of the original 19 civil parishes of Louisiana that date from statehood in 1807, nine were named after the Roman Catholic parishes from which they were governed.
The powers of counties arise from state law and vary widely.In Connecticut and Rhode Island, counties are geographic entities, but not governmental jurisdictions. At the other extreme, Maryland counties and the county-equivalent City of Baltimore handle almost all services, including public education, although the state retains an active oversight authority with many of these services.
In most Midwestern and Northeastern states, counties are further subdivided into townships or towns, which sometimes exercise local powers or administration. Throughout the United States, counties may contain other independent, self-governing municipalities.
Counties are usually governed by an elected body, variously called the county commission, board of supervisors, commissioners' court, county council, board of chosen freeholders, county court, or county Legislature. In some counties, there is a county executive. In cases in which a consolidated city-county or independent city exists, a City Council usually governs city/county or city affairs.
In many states, the board in charge of a county holds powers that transcend all three traditional branches of government. It has the legislative power to enact ordinances for the county; it has the executive power to oversee the executive operations of county government; and it has quasi-judicial power with regard to certain limited matters (such as hearing appeals from the planning commission if one exists).
The day-to-day operations of the county government are sometimes overseen by an elected county executive or by a chief administrative officer or county administrator who reports to the board, the mayor, or both.
In many states, several important officials are elected separately from the board of commissioners or supervisors and cannot be fired by the board. These positions may include county clerk, county treasurer, county surrogate, sheriff, and others.
District attorneys or state attorneys are usually state-level as opposed to county-level officials, but in many states, counties and state judicial districts have coterminous boundaries.
The structure and powers of a county government may be defined by the general law of the state or by a charter specific to that county. States may allow only general-law counties, only charter counties, or both. Generally, general-law local governments have less autonomy than chartered local governments.
The power of county governments varies widely from state to state, as does the relationship between counties and incorporated cities. The government of the county usually resides in a municipality called the county seat. However, some counties may have multiple seats or no seat. In some counties with no incorporated municipalities, a large settlement may serve as the county seat.
In New England, counties function at most as judicial court districts and sheriff's departments (presently, in Connecticut only as judicial court districts—and in Rhode Island, they have lost both those functions and all others), and most of the governmental authority below the state level is in the hands of towns and cities. In several of Maine's sparsely populated counties, small towns rely on the county for law enforcement, and in New Hampshire several social programs are administered at the state level. In Connecticut, Rhode Island, and parts of Massachusetts, counties are now only geographic designations, and they do not have any governmental powers. All government is either done at the state level or at the municipal level. In Connecticut and parts of Massachusetts, regional councils have been established to partially fill the void left behind by the abolished county governments.The regional councils' authority is limited compared with a county government—they have authority only over infrastructure and land use planning, distribution of state and federal funds for infrastructure projects, emergency preparedness, and limited law enforcement duties.
In the Mid-Atlantic and Midwest, counties typically provide, at a minimum, courts, public utilities, libraries, hospitals, public health services, parks, roads, law enforcement, and jails. There is usually a county registrar, recorder, or clerk (the exact title varies) who collects vital statistics, holds elections (sometimes in coordination with a separate elections office or commission), and prepares or processes certificates of births, deaths, marriages, and dissolutions (divorce decrees). The county recorder normally maintains the official record of all real estate transactions. Other key county officials include the coroner/medical examiner, treasurer, assessor, auditor, comptroller, and district attorney.
In most states, the county sheriff is the chief law enforcement officer in the county. However, except in major emergencies where clear chains of command are essential, the county sheriff normally does not directly control the police departments of city governments, but merely cooperates with them (e.g., under mutual aid pacts). Thus, the most common interaction between county and city law enforcement personnel is when city police officers deliver suspects to sheriff's deputies for detention or incarceration in the county jail.
In most states, the state courts and local law enforcement are organized and implemented along county boundaries, but nearly all of the substantive and procedural law adjudicated in state trial courts originates from the state legislature and state appellate courts. In other words, most criminal defendants are prosecuted for violations of state law, not local ordinances, and if they, the district attorney, or police seek reforms to the criminal justice system, they will usually have to direct their efforts towards the state legislature rather than the county (which merely implements state law). A typical criminal defendant will be arraigned and subsequently indicted or held over for trial before a trial court in and for a particular county where the crime occurred, kept in the county jail (if he is not granted bail or cannot make bail), prosecuted by the county's district attorney, and tried before a jury selected from that county. But long-term incarceration is rarely a county responsibility, execution of capital punishment is never a county responsibility, and the state's responses to prisoners' appeals is the responsibility of the state attorney general, who has to defend before the state appellate courts the prosecutions conducted by locally elected district attorneys in the name of the state. Furthermore, county-level trial court judges are officers of the judicial branch of the state government rather than county governments.
In many states, the county controls all unincorporated lands within its boundaries. In states with a township tier, unincorporated land is controlled by the townships. Residents of unincorporated land who are dissatisfied with county-level or township-level resource allocation decisions can attempt to vote to incorporate as a city, town, or village.
A few counties directly provide public transportation themselves, usually in the form of a simple bus system. However, in most counties, public transportation is provided by one of the following: a special-purpose district that is coterminous with the county (but exists separately from the county government), a multi-county regional transit authority, or a state agency.
In western and southern states, more populated counties provide many facilities, such as airports, convention centers, museums, recreation centers, beaches, harbors, zoos, clinics, law libraries, and public housing. They provide services such as child and family services, elder services, mental health services, welfare services, veterans assistance services, animal control, probation supervision, historic preservation, food safety regulation, and environmental health services. They have many additional officials like public defenders, arts commissioners, human rights commissioners, and planning commissioners. Finally, there may also be a county fire department and even a county police department (as distinguished from fire and police departments operated by individual cities, special districts, or the state government). For example, Gwinnett County, Georgia, and its county seat, the city of Lawrenceville, each have their own police departments. (A separate county sheriff's department is responsible for security of the county courts and administration of the county jail.) In several southern states, public school systems are organized and administered at the county level.
As of 2016 [update] , there were 3,007 counties, 64 parishes, 19 organized boroughs, 10 census areas, 41 independent cities, and the District of Columbia for a total of 3,142 counties and county-equivalents in the 50 states and District of Columbia. There are an additional 100 county equivalents in the territories of the United States. The average number of counties per state is 62, with a range from the three counties of Delaware to the 254 counties of Texas.
Southern and Midwestern states generally tend to have more counties than Western or Northeastern states, as many Northeastern states are not large enough in area to warrant a large number of counties, and many Western states were sparsely populated when counties were created. The five counties of Rhode Island, the eight counties of Connecticut, and eight of the 14 counties of Massachusetts no longer have functional county governments, but continue to exist as legal and census entities.
| State, federal district |
|2016 population||Land area||Counties||Equivalents||Total||Population||Land area|
|4,863,300||50,645 sq mi|
|67||—||67||72,587||756 sq mi|
|741,894||570,641 sq mi|
|—||29||29||25,582||19,677 sq mi|
|6,931,071||113,594 sq mi|
|15||—||15||462,071||7,573 sq mi|
|2,988,248||52,035 sq mi|
|75||—||75||39,843||694 sq mi|
|39,250,017||155,779 sq mi|
|58||—||58||676,724||2,686 sq mi|
|5,540,545||103,642 sq mi|
|64||—||64||86,571||1,619 sq mi|
|3,576,452||4,842 sq mi|
|8||—||8||447,057||605 sq mi|
|952,065||1,949 sq mi|
|3||—||3||317,355||650 sq mi|
|681,170||61 sq mi|
|—||1||1||681,170||61 sq mi|
|20,612,439||53,625 sq mi|
|67||—||67||307,648||800 sq mi|
|10,310,371||57,513 sq mi|
|159||—||159||64,845||362 sq mi|
|1,428,557||6,423 sq mi|
|5||—||5||285,711||1,285 sq mi|
|1,683,140||82,643 sq mi|
|44||—||44||38,253||1,878 sq mi|
|12,801,539||55,519 sq mi|
|102||—||102||125,505||544 sq mi|
|6,633,053||35,826 sq mi|
|92||—||92||72,098||389 sq mi|
|3,134,693||55,857 sq mi|
|99||—||99||31,664||564 sq mi|
|2,907,289||81,759 sq mi|
|105||—||105||27,688||779 sq mi|
|4,436,974||39,486 sq mi|
|120||—||120||36,975||329 sq mi|
|4,681,666||43,204 sq mi|
|—||64||64||73,151||675 sq mi|
|1,331,479||30,843 sq mi|
|16||—||16||83,217||1,928 sq mi|
|6,016,447||9,707 sq mi|
|23||1||24||250,685||404 sq mi|
|6,811,779||7,800 sq mi|
|14||—||14||486,556||557 sq mi|
|9,928,300||56,539 sq mi|
|83||—||83||119,618||681 sq mi|
|5,519,952||79,627 sq mi|
|87||—||87||63,448||915 sq mi|
|2,988,726||46,923 sq mi|
|82||—||82||36,448||572 sq mi|
|6,093,000||68,742 sq mi|
|114||1||115||52,983||598 sq mi|
|1,042,520||145,546 sq mi|
|56||—||56||18,616||2,599 sq mi|
|1,907,116||76,824 sq mi|
|93||—||93||20,507||826 sq mi|
|2,940,058||109,781 sq mi|
|16||1||17||172,945||6,458 sq mi|
|1,334,795||8,953 sq mi|
|10||—||10||133,480||895 sq mi|
|8,944,469||7,354 sq mi|
|21||—||21||425,927||350 sq mi|
|2,081,015||121,298 sq mi|
|33||—||33||63,061||3,676 sq mi|
|19,745,289||47,126 sq mi|
|62||—||62||318,472||760 sq mi|
|10,146,788||48,618 sq mi|
|100||—||100||101,468||486 sq mi|
|757,952||69,001 sq mi|
|53||—||53||14,301||1,302 sq mi|
|11,614,373||40,861 sq mi|
|88||—||88||131,982||464 sq mi|
|3,923,561||68,595 sq mi|
|77||—||77||50,955||891 sq mi|
|4,093,465||95,988 sq mi|
|36||—||36||113,707||2,666 sq mi|
|12,784,227||44,743 sq mi|
|67||—||67||190,809||668 sq mi|
|1,056,426||1,034 sq mi|
|5||—||5||211,285||207 sq mi|
|4,961,119||30,061 sq mi|
|46||—||46||107,850||653 sq mi|
|865,454||75,811 sq mi|
|66||—||66||13,113||1,149 sq mi|
|6,651,194||41,235 sq mi|
|95||—||95||70,013||434 sq mi|
|27,862,596||261,232 sq mi|
|254||—||254||109,695||1,028 sq mi|
|3,051,217||82,170 sq mi|
|29||—||29||105,214||2,833 sq mi|
|624,594||9,217 sq mi|
|14||—||14||44,614||658 sq mi|
|8,411,808||39,490 sq mi|
|95||38||133||63,247||295 sq mi|
|7,288,000||66,456 sq mi|
|39||—||39||186,872||1,704 sq mi|
|1,831,102||24,038 sq mi|
|55||—||55||33,293||437 sq mi|
|5,778,708||54,158 sq mi|
|72||—||72||80,260||752 sq mi|
|585,501||97,093 sq mi|
|23||—||23||25,457||4,221 sq mi|
| United States |
(50 states and the District of Columbia)
|323,127,513||3,531,905 sq mi|
|3,007||135||3,142||102,841||1,124 sq mi|
|51,504||77 sq mi|
|—||5||5||11,104||15 sq mi|
|162,742||210 sq mi|
|—||1||1||162,742||210 sq mi|
|52,263||179 sq mi|
|—||4||4||13,066||45 sq mi|
|3,337,177||3,515 sq mi|
|—||78||78||42,784||45 sq mi|
|160||13 sq mi|
|—||9||9||18||1 sq mi|
|104,901||134 sq mi|
|—||3||3||34,967||45 sq mi|
| United States |
(50 states, the District of Columbia, and territories)
|326,836,260||3,535,948 sq mi|
|3,007||235||3,242||100,813||1,091 sq mi|
The average U.S. county population was nearly 100,000 in 2015. The most populous county is Los Angeles County, California, with 10,170,292 residents in 2015.This number is greater than the populations of 41 U.S. states. It also makes Los Angeles County 17.4 times as large as the least populous state, Wyoming.
The second most populous county is Cook County, Illinois, with a population of 5,238,216.Cook County's population is larger than that of 28 individual U.S. states and the combined populations of the six smallest states.
The least populous county is Kalawao County, Hawaii, with 89 residents in 2015.8 county-equivalents in the U.S. territories have a population of 0: Rose Atoll, Northern Islands Municipality, Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, and Navassa Island. The remaining 3 islands in the U.S. Minor Outlying Islands have small non-permanent human populations. The least populous county-equivalent with a permanent human population is Swains Island, American Samoa (17 residents).
The most densely populated county or county-equivalent is New York County, New York (coextensive with the New York City Borough of Manhattan), with 72,033 persons per square mile (27,812/km2) in 2015. The Yukon-Koyukuk Census Area, Alaska, is both the most extensive and the least densely populated county or county-equivalent with 0.0380 persons per square mile (0.0147/km2) in 2015.
In the 50 states (plus District of Columbia), a total of 981 counties have a population over 50,000; 592 counties have a population over 100,000; 137 counties have a population over 500,000; 45 counties have a population over 1,000,000; and 14 counties have a population over 2,000,000. At the other extreme, 35 counties have a population under 1,000; 307 counties have a population under 5,000; 709 counties have a population under 10,000; and 1,492 counties have a population between 10,000 and 50,000.
At the 2000 U.S. Census, the median land area of U.S. counties was 622 sq mi (1,610 km2), which is two-thirds of the median land area of a ceremonial county of England, and a little more than a quarter of the median land area of a French département . Counties in the western United States typically have a much larger land area than those in the eastern United States. For example, the median land area of counties in Georgia is 343 sq mi (890 km2), whereas in Utah it is 2,427 sq mi (6,290 km2).
The most extensive county or county-equivalent is the Yukon-Koyukuk Census Area, Alaska, with a land area of 145,505 square miles (376,856 km2). All nine of the most extensive county-equivalents are in Alaska. The most extensive county is San Bernardino County, California, with a land area of 20,057 square miles (51,947 km2). The least extensive county is Kalawao County, Hawaii, with a land area of 11.991 square miles (31.058 km2). The least extensive county-equivalent in the 50 states is the independent City of Falls Church, Virginia, with a land area of 1.999 square miles (5.177 km2). If U.S. territories are included, the least extensive county-equivalent is Kingman Reef, with a land area of 0.01 square miles (0.03 km2).
In some states, a municipality may be in only one county and may not annex territory in adjacent counties, but in the majority of states, the state constitution or state law allows municipalities to extend across county boundaries. At least 32 states include municipalities in multiple counties. Dallas and Oklahoma City, for example, both contain portions of five counties. New York City is an unusual case because it encompasses multiple entire counties in one city. Each of those counties is coextensive with one of the five boroughs of the city: Manhattan (New York County), The Bronx (Bronx County), Queens (Queens County), Brooklyn (Kings County), and Staten Island (Richmond County).
Petersburg Borough is a borough in the U.S. state of Alaska. According to Census Bureau estimates, the population was 3,221 in 2018. The borough seat is Petersburg. Petersburg is the most recently created county equivalent in the United States.
A civil township is a widely used unit of local government in the United States that is subordinate to a county. The term town is used in New England, New York, and Wisconsin to refer to the equivalent of the civil township in these states. Specific responsibilities and the degree of autonomy vary based on each state. Civil townships are distinct from survey townships, but in states that have both, the boundaries often coincide and may completely geographically subdivide a county. The U.S. Census Bureau classifies civil townships as minor civil divisions. Currently, there are 20 states with civil townships.
In 48 of the 50 states of the United States, the county is used for the level of local government immediately below the state itself. Louisiana uses parishes, and Alaska uses boroughs. In several states in New England, some or all counties within states have no governments of their own; the counties continue to exist as legal entities, however, and are used by states for some administrative functions and by the United States Census bureau for statistical analysis. There are 3,142 counties and county equivalent administrative units in total, including the District of Columbia.
Political divisionsof the United States are the various recognized governing entities that together form the United States — states, territories, the District of Columbia, and Indian reservations.
Territories of the United States are sub-national administrative divisions overseen by the federal government. They differ from U.S. states and Native American tribes, which have limited sovereignty. The territories are classified by incorporation and whether they have an "organized" government through an organic act passed by Congress.
The Unorganized Borough is made up of the portions of the U.S. state of Alaska which are not contained in any of its 19 organized boroughs. It encompasses nearly half of Alaska's land area, 323,440 square miles (837,700 km2), an area larger than any other U.S. state, and larger than the land area of the smallest 16 states combined. As of the 2000 U.S. Census, it had a population of 81,803, which was 13% of the population of the state.
A borough in some U.S. states is a unit of local government or other administrative division below the level of the state. The term is currently used in six states:
Pacific Islands Americans, also known as Oceanian Americans, Pacific Islander Americans or Native Hawaiian and/or other Pacific Islander Americans, are Americans who have ethnic ancestry among the indigenous peoples of Oceania. For its purposes, the U.S. Census also counts Indigenous Australians as part of this group.
In the United States, the meaning of "village" varies by geographic area and legal jurisdiction. In many areas, "village" is a term, sometimes informal, for a type of administrative division at the local government level. Since the Tenth Amendment to the United States Constitution prohibits the federal government from legislating on local government, the states are free to have political subdivisions called "villages" or not to and to define the word in many ways. Typically, a village is a type of municipality, although it can also be a special district or an unincorporated area. It may or may not be recognized for governmental purposes.
The United States Census Bureau defines a place as a concentration of population which has a name, is locally recognized, and is not part of any other place. A place typically has a residential nucleus and a closely spaced street pattern, and it frequently includes commercial property and other urban land uses. A place may be an incorporated place or it may be a census-designated place (CDP). Incorporated places are defined by the laws of the states in which they are contained. The Census Bureau delineates CDPs. A small settlement in the open countryside or the densely settled fringe of a large city may not be a place as defined by the Census Bureau. As of the 1990 Census, only 26% of the people in the United States lived outside of places.
This article includes information about the 100 most populous incorporated cities, the 100 most populous Core Based Statistical Areas (CBSAs), and the 100 most populous Primary Statistical Areas (PSAs) of the United States and Puerto Rico. This information is displayed in two tables. The first table ranks the cities, CBSAs, and PSAs separately by population. The second table displays the areas in hierarchical order by the most populous PSA, then most populous CBSA, and then most populous city.
The United States federal government defines and delineates the nation's metropolitan areas for statistical purposes, using a set of standard statistical area definitions. As of 2013, the U.S. Office of Management and Budget (OMB) defined and delineated 388 metropolitan statistical areas (MSAs) and 541 micropolitan statistical areas (μSAs) in the United States and Puerto Rico. Many of these 929 MSAs and μSAs are, in turn, components of larger combined statistical areas (CSAs) consisting of adjacent MSAs and μSAs that are linked by commuting ties; as of 2013, 524 metropolitan and micropolitan areas are components of the 169 defined CSAs.
There are no county seats in Connecticut. County government was abolished effective October 1, 1960; counties function only as geographical subdivisions.
Rhode Island has no county government. It is divided into 39 municipalities each having its own form of local government.
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