Combined statistical area

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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.[1][2] 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.

The primary distinguishing factor between a CSA and an MSA/μSA is that the social and economic ties between the individual MSAs/μSAs within a CSA are at lower levels than between the counties within an MSA.[3] CSAs represent multiple metropolitan or micropolitan areas that have an employment interchange of at least 15% (% commuting from A to B plus % commuting from B to A).[3] CSAs often represent regions with overlapping labor and media markets.

As of 2023, there are 181 combined statistical areas across the United States, plus another three in the territory of Puerto Rico.[3]

List of combined statistical areas

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An enlargeable map of the 175 combined statistical areas (CSAs) of the United States (172) and Puerto Rico (3) as defined in 2020

The following table lists the 181 combined statistical areas (CSAs) of the United States with the following information:

  1. The CSA rank by population as of July 1, 2023, as estimated by the U.S. Census Bureau[4]
  2. The CSA name as designated by the United States Office of Management and Budget[3]
  3. The CSA population as of July 1, 2023, as estimated by the United States Census Bureau[4]
  4. The CSA population as of April 1, 2020, as enumerated by the 2020 United States census[4]
  5. The percent CSA population change from April 1, 2020, to July 1, 2023
  6. The core-based statistical areas (CBSAs) that constitute the CSA[3]

Metropolitan statistical areas that are not also combined with other MSAs or CBSAs are not listed below.

Puerto Rico

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The following sortable table lists the three combined statistical areas (CSAs) of Puerto Rico with the following information:

  1. The CSA rank by population as of July 1, 2023, as estimated by the United States Census Bureau[4]
  2. The CSA name as designated by the United States Office of Management and Budget[3]
  3. The CSA population as of July 1, 2023, as estimated by the United States Census Bureau[4]
  4. The CSA population as of April 1, 2020, as enumerated by the 2020 United States census[4]
  5. The percent CSA population change from April 1, 2020, to July 1, 2023
  6. The core-based statistical areas (CBSAs) that constitute the CSA[3]
The three combined statistical areas of the Commonwealth of Puerto Rico

Rank Combined statistical area 2023 estimate 2020 census Change Constituent core-based statistical areas
1 San Juan–Bayamón, PR CSA 2,360,082 2,414,593 −2.26% San Juan–Bayamón–Caguas, PR MSA
Arecibo, PR MSA
Guayama, PR MSA
Lares, PR μSA
Utuado, PR μSA
Coco, PR μSA
2 Mayagüez–Aguadilla, PR CSA 458,312 467,599 −1.99% Aguadilla, PR MSA
Mayagüez, PR MSA
3 Ponce–Coamo, PR CSA 319,592 333,426 −4.15% Ponce, PR MSA
Coamo, PR μSA

See also

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References

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  1. ^ "Revised Definitions of Metropolitan Statistical Areas, New Definitions of Micropolitan Statistical Areas and Combined Statistical Areas, and Guidance on Uses of the Statistical Definitions of These Areas" (PDF). Archived (PDF) from the original on January 20, 2022.
  2. ^ "OMB Bulletin No. 03-04" (PDF). 2003. Archived from the original (PDF) on November 14, 2020.
  3. ^ a b c d e f g Executive Office of the President (July 21, 2023). "Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF) (Press release). Archived (PDF) from the original on July 21, 2023. Retrieved July 21, 2023.
  4. ^ a b c d e f "Metropolitan and Micropolitan Statistical Areas Population Totals: 2020-2023". United States Census Bureau, Population Division. March 14, 2024. Retrieved March 16, 2024.
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