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Metropolitan statistical area

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Template:Short description Template:U.S. city population tables Template:Use mdy dates 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.<ref>Template:Cite web</ref><ref>Template:Cite web</ref> 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.<ref>Template:Cite book</ref>

Due to suburbanization, the typical metropolitan area is polycentric rather than being centered around a large historic core city such as New York City or Chicago.<ref>Template:Cite web</ref> Some metropolitan areas include more than one large historic core city; examples include the Dallas–Fort Worth metroplex, Virginia Beach–Norfolk–Newport News (Hampton Roads), Riverside–San Bernardino (Inland Empire), and Minneapolis–Saint Paul (Twin Cities).

MSAs are defined by the Office of Management and Budget (OMB), which is part of the Executive Office of the President, and are used by the U.S. Census Bureau and other U.S. federal government agencies for statistical purposes.<ref>Template:Cite web</ref>

Definitions

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File:CBSA WallMap Jul2023.pdf
An enlargeable map of the 935 core-based statistical areas (CBSAs) of the United States and Puerto Rico as of 2023; the 393 MSAs are shown in medium green.<ref name="Revision 2023" />

The U.S. Office of Management and Budget defines a set of core based statistical areas (CBSAs) throughout the country, which are composed of counties and county equivalents.<ref>Census Geographic Glossary Template:Webarchive, U.S. Census Bureau</ref>

CBSAs are delineated on the basis of a central contiguous area of relatively high population density, known as an urban area. The counties containing the core urban area are known as the "central counties" of the CBSA; these are defined as having at least 50% of their population living in urban areas of at least 10,000 in population.<ref name="OFR">Template:Cite web</ref> Additional surrounding counties, known as "outlying counties", can be included in the CBSA if these counties have strong social and economic ties to the central county or counties as measured by commuting and employment. Outlying counties are included in the CBSA if 25% of the workers living in the county work in the central county or counties, or if 25% of the employment in the county is held by workers who live in the central county or counties.

Adjacent CBSAs are merged into a single CBSA when the central county or counties of one CBSA qualify as an outlying county or counties to the other CBSAs.<ref name="OFR"/> One or more CBSAs may be grouped together or combined to form a larger statistical entity known as a combined statistical area (CSA) when the employment interchange measure (EIM) reaches 15% or more.

CBSAs are subdivided into MSAs (formed around urban areas of at least 50,000 in population) and micropolitan statistical areas (μSAs), which are CBSAs built around an urban area of at least 10,000 in population but less than 50,000 in population. Some metropolitan areas may include multiple cities below 50,000 people, but combined have over 50,000 people.<ref name="OFR"/> Previous terms that are no longer used to describe these regions include "standard metropolitan statistical area" (SMSA) and "primary metropolitan statistical area" (PMSA).<ref>Template:Cite web</ref>

On January 19, 2021, OMB submitted a regulation for public comment that would increase the minimum population needed for an urban area population to be a metropolitan statistical area to be increased from 50,000 to 100,000.<ref>Template:Cite web</ref> It ultimately decided to keep the minimum at 50,000 for the 2020 cycle.<ref>Template:Cite press release</ref>

On July 21, 2023, the Office of Management and Budget released revised delineations of the various CBSAs in the United States.<ref name="Revision 2023">Template:Cite press release</ref>

History

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The Census Bureau created the metropolitan district for the 1910 census as a standardized classification for large urban centers and their surrounding areas. The original threshold for a metropolitan district was 200,000, but was lowered to 100,000 in 1930 and 50,000 in 1940.<ref name="CES-Definition">Template:Cite report</ref> The metropolitan districts were replaced by standard metropolitan areas (SMAs) in the 1950 census, which were defined by the Bureau of the Budget (now the Office of Management and Budget) and later renamed to standard metropolitan statistical areas (SMAs) in 1959.<ref name="CES-Definition"/><ref name="History">Template:Cite web</ref> The modern metropolitan statistical area was created in 1983 amid a large increase in the number of eligible markets, which grew from 172 in 1950 to 288 in 1980;<ref name="CES-Definition"/><ref>Template:Cite news</ref> the core based statistical area (CBSA) was introduced in 2000 and defined in 2003 with a minimum population of 10,000 required for micropolitan areas and 50,000 for urban areas.<ref name="CES-Definition"/><ref name="History"/>

Rankings

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The 387 MSAs in the United States, including those in all 50 states and the national capital of Washington, D.C. are ranked, including:

  1. The MSA rank by population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA>Template:Cite web</ref>
  2. The MSA name as designated by the United States Office of Management and Budget<ref name="Revision 2023"/>
  3. The MSA population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA/>
  4. The MSA population as of April 1, 2020, as enumerated by the 2020 United States census<ref name=PopEstCBSA/>Template:Efn
  5. The percent MSA population change from April 1, 2020, to July 1, 2024<ref name=PopEstCBSA/>
  6. The combined statistical area (CSA)Template:Efn if it is designated and the MSA is a component<ref name="OMB_20-01">Template:Cite web</ref>

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Puerto Rico

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This sortable table lists the six metropolitan statistical areas (MSAs) of Puerto Rico including:

  1. The MSA rank by population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA/>
  2. The MSA name as designated by the United States Office of Management and Budget<ref name="Revision 2023" />
  3. The MSA population as of July 1, 2024, as estimated by the United States Census Bureau<ref name=PopEstCBSA/>
  4. The MSA population as of April 1, 2020, as enumerated by the 2020 United States census<ref name=PopEstCBSA/>Template:Efn
  5. The percent MSA population change from April 1, 2020, to July 1, 2024<ref name=PopEstCBSA/>
  6. The combined statistical area (CSA)Template:Efn if the MSA is a component<ref name="OMB_20-01" />

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The six metropolitan statistical areas of the Commonwealth of Puerto Rico
Rank Metropolitan statistical area 2024 estimate 2020 census Change Encompassing combined statistical area
Template:Nts San Juan–Bayamón–Caguas, PR MSA Template:Change San Juan–Bayamón, PR Combined Statistical Area
Template:Nts Ponce, PR MSA Template:Change Ponce–Coamo, PR Combined Statistical Area
Template:Nts Aguadilla, PR MSA Template:Change Mayagüez–Aguadilla, PR Combined Statistical Area
Template:Nts Mayagüez, PR MSA Template:Change Mayagüez–Aguadilla, PR Combined Statistical Area
Template:Nts Arecibo, PR MSA Template:Change San Juan–Bayamón, PR Combined Statistical Area
Template:Nts Guayama, PR MSA Template:Change San Juan–Bayamón, PR Combined Statistical Area

See also

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Footnotes

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References

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Template:Largest metropolitan areas of the United States Template:USCensus Geography Template:Authority control