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 region. Such regions are not legally incorporated as a city or town would be and are not legal administrative divisions like counties or separate entities such as states. As a result, sometimes the precise definition of a given metropolitan area will vary between sources. The statistical criteria for a standard metropolitan area were defined in 1949 and redefined as a metropolitan statistical area in 1983.
Jefferson County is an exurban county located in the U.S. state of Tennessee. As of the 2020 census, the population was 54,683. Its county seat is Dandridge. Jefferson County is part of the Morristown Metropolitan Statistical Area with neighboring Grainger and Hamblen counties. The county, along with the Morristown MSA, is included in the Knoxville-Morristown-Sevierville Combined Statistical Area.
Hamblen County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 64,499. Its county seat and only incorporated city is Morristown. Hamblen County is the core county of the Morristown, Tennessee Metropolitan Statistical Area, which includes Hamblen and Jefferson counties. The county and the Morristown MSA are included in the Knoxville-Morristown-Sevierville, TN Combined Statistical Area.
Morristown is a city in and the county seat of Hamblen County, Tennessee, United States. Morristown also extends into Jefferson County on the western and southern ends. The city lies within the Ridge and Valley region of the Appalachians, along Cherokee Lake on the Holston River. The city's population was recorded to be 30,431 at the 2020 United States census. It is the principal city of the Morristown Metropolitan Statistical Area, which encompasses all of Grainger, Hamblen, and Jefferson counties. The Morristown metropolitan area is also part of the Knoxville-Morristown-Sevierville Combined Statistical Area.
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. On July 21, 2023, the Office of Management and Budget released revised delineations of the various CBSAs in the United States, which recognized 542 micropolitan areas in the United States, four of which are in Puerto Rico.
Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (μSA) across the 50 U.S. states and the territory of Puerto Rico that can demonstrate economic or social linkage. CSAs were first designated in 2003. OMB defines a CSA by various combinations of adjacent metropolitan and micropolitan areas with economic ties measured by commuting patterns. CSAs retain their own designations as metropolitan or micropolitan statistical areas in their respective larger combined statistical areas.
As of March 2020, the Fort Wayne–Huntington–Auburn Combined Statistical Area (CSA), or Fort Wayne Metropolitan Area, or Northeast Indiana is a federally designated metropolitan area consisting of eight counties in northeast Indiana, anchored by the city of Fort Wayne.
Pennsylvania has 14 U.S. Census Bureau-designated metropolitan statistical areas (MSAs) and four combined statistical areas (CSAs). As of 2020, Philadelphia, the seventh-largest United States metropolitan area, is the state's largest metropolitan area followed by Pittsburgh and Allentown.
The Sarasota metropolitan area is a metropolitan area located in Southwest Florida. The metropolitan area is defined by the Office of Management and Budget (OMB) as the North Port–Bradenton–Sarasota Metropolitan Statistical Area, a metropolitan statistical area (MSA) consisting of Manatee County and Sarasota County. The principal cities listed by the OMB for the MSA are North Port, Bradenton, Sarasota, Lakewood Ranch, and Venice. At the 2020 census, the MSA had a population of 833,716. The Census Bureau estimates that its population was 891,411 in 2022.
The Nashville metropolitan area is a metropolitan statistical area in north-central Tennessee. Its principal city is Nashville, the capital of and largest city in Tennessee. With a population of over 2 million, it is the most populous metropolitan area in Tennessee. It is also the largest metropolitan area in Tennessee in terms of land area.
Area code 865 serves Knoxville, Tennessee, and the nine surrounding counties in central East Tennessee. The area incorporates most of the region defined as the Knoxville-Sevierville-La Follette Combined Statistical Area.
The U.S. State of Tennessee currently has 34 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated seven combined statistical areas, ten metropolitan statistical areas, and 17 micropolitan statistical areas in Tennessee. As of 2023, the largest of these is the Nashville-Davidson--Murfreesboro, TN CSA, comprising the area around the state capital of Nashville.
Strawberry Plains is an unincorporated community and census-designated place (CDP) in Jefferson, Knox, and Sevier counties in the State of Tennessee, United States. Before 2010, it was treated by the United States Census Bureau as a census county division. It is included in both the Knoxville Metropolitan Statistical Area and the Morristown Metropolitan Statistical Area.
The Morristown Metropolitan Statistical Area, commonly known as the Lakeway Area, as defined by the United States Census Bureau, is an area consisting of two counties - Hamblen, and Jefferson - in eastern Tennessee, anchored by the city of Morristown. Grainger County was formerly part of both the Knoxville and Morristown Metropolitans until 2023. Including Grainger County, the 2020 census showed that the MSA had a population of 142,709.
The Salt Lake City metropolitan area is the metropolitan area centered on the city of Salt Lake City, Utah. The Office of Management and Budget and the United States Census Bureau currently define the Salt Lake City, Utah Metropolitan Statistical Area (MSA) as comprising two counties: Salt Lake and Tooele. As of the 2020 census, the MSA had a population of 1,257,936. The Salt Lake City Metropolitan Area and the Ogden-Clearfield Metropolitan Area were a single metropolitan area known as the Salt Lake City-Ogden Metropolitan Area until being separated in 2005.
The city of Portland, Maine, is the hub city of a metropolitan area in southern Maine. The region is commonly known as Greater Portland or the Portland metropolitan area. For statistical purposes, the U.S. federal government defines three different representations of the Portland metropolitan area. The Portland–South Portland, Maine, metropolitan statistical area is a region consisting of three counties in Maine, anchored by the city of Portland and the smaller city of South Portland. As of the 2020 census, the MSA had a population of 551,740. A larger combined statistical area (CSA), the Portland–Lewiston–South Portland combined statistical area, is defined as the combination of this metropolitan statistical area (MSA) with the adjacent Lewiston–Auburn MSA. The CSA comprises four counties in southern Maine. The Portland–South Portland metropolitan New England city and town area is defined on the basis of cities and towns rather than entire counties. It consists of most of Cumberland and York counties plus the town of Durham in Androscoggin County. The Greater Portland area has emerged as an important center for the creative economy, which is also bringing gentrification.
The Montgomery, Alabama Metropolitan Statistical Area is a metropolitan area in central Alabama. As of 2020, the MSA had a population of 386,047, ranking it 142nd among United States Metropolitan Statistical Areas. That number is up +3.07% from the 2010 census number of 374,536.
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 2023, the U.S. Office of Management and Budget (OMB) defined and delineated 393 metropolitan statistical areas (MSAs) and 542 micropolitan statistical areas (μSAs) in the United States and Puerto Rico. Many of these 935 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 2023, 582 metropolitan and micropolitan areas are components of the 184 defined CSAs.
United States 
Tennessee 
Knoxville 
