The United States had an official estimated resident population of 331,893,745 on July 1, 2021, according to the U.S. Census Bureau. This figure includes the 50 states and the District of Columbia but excludes the population of five unincorporated U.S. territories as well as several minor island possessions. The United States is the third most populous country in the world. The Census Bureau showed a population increase of 0.12% for the twelve-month period ending in July 2021, below the world average annual rate of 0.9%. The total fertility rate in the United States estimated for 2021 is 1.664 children per woman, which is below the replacement fertility rate of approximately 2.1.
In the United States, a metropolitan statistical area (MSA) is a geographical region with a relatively high population density at its core and close economic ties throughout the area. Such regions are neither legally incorporated as a city or town would be, nor are they legal administrative divisions like counties or separate entities such as states; because of this, the precise definition of any given metropolitan area can vary with the source. The statistical criteria for a standard metropolitan area were defined in 1949 and redefined as metropolitan statistical area in 1983.
In the United States, a county is an administrative or political subdivision of a state that consists of a geographic region with specific boundaries and usually some level of governmental authority. The term "county" is used in 48 states, while Louisiana and Alaska have functionally equivalent subdivisions called parishes and boroughs, respectively. The specific governmental powers of counties vary widely between the states, with many providing some level of services to civil townships, municipalities, and unincorporated areas. Certain municipalities are in multiple counties; New York City is uniquely partitioned into five counties, referred to at the city government level as boroughs. Some municipalities have consolidated with their county government to form consolidated city-counties, or have been legally separated from counties altogether to form independent cities. Conversely, those counties in Connecticut, Rhode Island, eight of Massachusetts's 14 counties, and Alaska's Unorganized Borough have no government power, existing only as geographic distinctions.
Berks County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 428,849. The county seat is Reading.
Spring Township is a township in Berks County, Pennsylvania. The population was 27,119 at the 2010 census, making it the second most populous municipality in Berks County after the city of Reading.
A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities, colonias located along the Mexico–United States border, and unincorporated resort and retirement communities and their environs.
Race and ethnicity in the United States census, defined by the federal Office of Management and Budget (OMB) and the United States Census Bureau, are the self-identified categories of race or races and ethnicity chosen by residents, with which they most closely identify, and indicate whether they are of Hispanic or Latino origin.
The Northern United States, commonly referred to as the American North, the Northern States, or simply the North, is a geographical or historical region of the United States.
United States micropolitan statistical areas, as defined by the Office of Management and Budget (OMB), are labor market and statistical areas in the United States centered on an urban cluster with a population of at least 10,000 but fewer than 50,000 people. The micropolitan area designation was created in 2003. Like the better-known metropolitan statistical areas, a micropolitan area is a geographic entity used for statistical purposes based on counties and county equivalents. The OMB has identified 543 micropolitan areas in the United States.
White Americans are Americans who identify as and are perceived to be white people. This group constitutes the majority of the people in the United States. As of the 2020 Census, 61.6%, or 204,277,273 people, were white alone. This represented a national white demographic decline from a 72.4% share of the US's population in 2010.
The United States has a racially and ethnically diverse population. At the federal level, race and ethnicity have been categorized separately. The most recent United States Census officially recognized five racial categories as well as people of two or more races. The Census Bureau also classified respondents as "Hispanic or Latino" or "Not Hispanic or Latino", identifying Hispanic and Latino as an ethnicity, which comprises the largest minority group in the nation. The Census also asked an "Ancestry Question," which covers the broader notion of ethnicity, in the 2000 Census long form and the 2010 American Community Survey; the question worded differently on "origins" will return in the 2020 Census.
The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities. As part of a drive to increase the count's accuracy, 635,000 temporary enumerators were hired. The population of the United States was counted as 308,745,538, a 9.7% increase from the 2000 census. This was the first census in which all states recorded a population of over half a million people as well as the first in which all 100 largest cities recorded populations of over 200,000.
Americans are the citizens and nationals of the United States of America. Although direct citizens and nationals make up the majority of Americans, many dual citizens, expatriates, and permanent residents could also legally claim American nationality. The United States is home to people of many racial and ethnic origins; consequently, American culture and law do not equate nationality with race or ethnicity, but with citizenship and an oath of permanent allegiance.
