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.
Elmore County is a county located in the east central portion of the U.S. state of Alabama. As of the 2020 census, the population was 87,977. Its county seat is Wetumpka. Its name is in honor of General John A. Elmore.
Alexander City, known to locals as "Alex City", is the largest city in Tallapoosa County, Alabama, United States, with a population of 14,843 as of the 2020 census. It has been the largest community in Tallapoosa County since 1910. It is known for Lake Martin with its 750 miles (1,210 km) of wooded shoreline and 44,000 acres (18,000 ha) of water. Lake Martin stands on the Tallapoosa River and offers boating, swimming, fishing, golfing, and camping. Many neighborhoods and luxury homes are located on the lake.
The Blacksburg-Christiansburg Metropolitan Statistical Area, formerly the Blacksburg-Christiansburg-Radford Metropolitan Statistical Area, is a Metropolitan Statistical Area (MSA) as defined by the United States Office of Management and Budget (OMB) located in the New River Valley of Southwest Virginia. As of the 2020 census, the MSA had a population of 181,863.
The Kingsport–Bristol–Bristol metropolitan area is a metropolitan statistical area (MSA) in Northeast Tennessee and Southwest Virginia, United States, as defined by the Office of Management and Budget (OMB). It was formed in December 2003 by the merger of the Bristol, VA MSA and Kingsport–Bristol, TN–VA MSA.
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.
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 Kalamazoo–Portage Metropolitan Area comprises a region surrounding Kalamazoo. 2015 estimates placed it as the 151st largest among similarly designated areas in the United States. 2015 estimates place the combined statistical area 85th among similarly designated areas.
The U.S. State of Alabama currently has 37 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 9 combined statistical areas, 15 metropolitan statistical areas, and 13 micropolitan statistical areas in Alabama.
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 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 Salisbury, MD-DE Metropolitan Statistical Area is a United States Census Bureau-designated metropolitan area centered in and around Salisbury, Maryland, including four counties: Somerset, Wicomico, and Worcester in Maryland; and Sussex in Delaware.
The Manhattan–Junction City Combined Statistical Area, as defined by the United States Census Bureau, is an area consisting of three counties in northeastern Kansas, anchored by the city of Manhattan. It was upgraded from a Micropolitan Statistical Area (μSA) to a Metropolitan Statistical Area (MSA) by the Office of Management and Budget on November 20, 2008. It was changed from a Metropolitan Statistical Area (MSA) to a Combined Statistical Area (CSA) by the Office of Management and Budget on February 28, 2013.
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 Dothan Metropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of Geneva, Henry, and Houston counties in southeastern Alabama, anchored by the city of Dothan, county seat of Houston County. As of the 2010 census, the MSA had a population of 145,639.
The Dothan–Enterprise–Ozark Combined Statistical Area was a CSA made up of five counties in the southeastern corner of the U.S. state of Alabama. The once statistical area includes one metropolitan area and originally one micropolitan area which then was split off as two. As of the 2010 census, the CSA had a population of 245,838. Currently an updated area called the Dothan-Ozark Combined Statistical area is used instead and Enterprise micropolitan area is now split as its own statistical area.
The Alexander City Micropolitan Statistical Area is a micropolitan statistical area that consisted of one county in Alabama, anchored by the city of Alexander City, as defined by the United States Census Bureau. The current area is the second incarnation, with the original area consisting of Tallapoosa County and Coosa County. The original Alexander City Micropolitan Statistical Area was part of the Montgomery–Alexander City Combined Statistical Area.
The Kokomo Metropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of Howard County in Indiana. Howard County had a population estimate of 83,831 in 2023. Kokomo is also the principal city of the area known as North Central Indiana, the area around Kokomo with economic ties. The six county area including Cass, Clinton, Fulton, Howard, Miami, and Tipton counties had population of 228,331 people in 2010.
The Birmingham metropolitan area, sometimes known as Greater Birmingham, is a metropolitan area in north central Alabama centered on Birmingham, Alabama, United States.
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 2020, the U.S. Office of Management and Budget (OMB) defined and delineated 392 metropolitan statistical areas (MSAs) and 547 micropolitan statistical areas (μSAs) in the United States and Puerto Rico. Many of these 939 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 2020, 551 metropolitan and micropolitan areas are components of the 175 defined CSAs. A collective term for MSAs, μSAs, and CSAs is primary statistical areas (PSAs), though that term is not used by OMB.
United States 
Alabama 
