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Statistical area (United States)
Defined statistical regions of the 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 2023,[update] 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,[update] 582 metropolitan and micropolitan areas are components of the 184 defined CSAs.

Metropolitan and micropolitan statistical areas are defined as consisting of one or more adjacent counties or county equivalents with at least one urban core area meeting relevant population thresholds, plus adjacent territory that has a high degree of social and economic integration with the core, as measured by commuting ties. A metropolitan statistical area has at least one core with a population of at least 50,000. In a micropolitan statistical area, the largest core has a population of at least 10,000 but less than 50,000.

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Maps

Types and distribution

The sortable table below shows the number of combined, metropolitan and micropolitan statistical areas in each of the U.S. states, the District of Columbia, and Puerto Rico as of 2023. For each jurisdiction, it lists:

  1. Total number of delineated areas wholly or partially in the named jurisdiction2
  2. The number of CSAs wholly or partially in the jurisdiction3
  3. The number of core-based statistical areas (i.e., MSAs and μSAs) wholly or partially in the jurisdiction4
  4. The number of MSAs wholly or partially in the jurisdiction5
  5. The number of μSAs wholly or partially in the jurisdiction6
Number of statistical areas in the United States and Puerto Rico7
JurisdictionDelineated areasCSAsCore-based areasMSAsμSAs
Alabama8359261313
Alaska40422
Arizona1321174
Arkansas925421714
California427352510
Colorado20317710
Connecticut1092752
Delaware1141321
Florida1235728226
Georgia13467391524
Hawaiʻi40422
Idaho1422517710
Illinois154714331221
Indiana165010401525
Iowa1731724915
Kansas1825322715
Kentucky1932824915
Louisiana2025619109
Maine51431
Maryland211331064
Massachusetts221221073
Michigan23438351619
Minnesota2434628919
Mississippi2527621417
Missouri2631625718
Montana70752
Nebraska271631349
Nevada102835
New Hampshire2882624
New Jersey2993660
New Mexico19217413
New York30347271314
North Carolina31489391524
North Dakota3291844
Ohio335511441529
Oklahoma3428622517
Oregon3524420812
Pennsylvania364812362016
Rhode Island3721110
South Carolina3820416106
South Dakota391421239
Tennessee40347271017
Texas418013672641
Utah421211156
Vermont4382615
Virginia4419415114
Washington45296231310
West Virginia4620515105
Wisconsin474011291514
Wyoming481001028
District of Columbia4921110
United States1106181925387538
Puerto Rico1331064
United States & Puerto Rico1119184935393542

See also

  • Geography portal
  • United States portal
  • Puerto Rico portal

Notes

References

  1. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  2. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  3. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  4. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  5. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  6. "OMB Bulletin No. 23-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. July 21, 2023. Retrieved May 2, 2024. https://bidenwhitehouse.archives.gov/wp-content/uploads/2023/07/OMB-Bulletin-23-01.pdf ↩

  7. Because many metropolitan and micropolitan areas overlap jurisdictional boundaries, columns are not additive. ↩

  8. This state shares one or more statistical areas with one or more other states. ↩

  9. This state shares one or more statistical areas with one or more other states. ↩

  10. This state shares one or more statistical areas with one or more other states. ↩

  11. This state shares one or more statistical areas with one or more other states. ↩

  12. This state shares one or more statistical areas with one or more other states. ↩

  13. This state shares one or more statistical areas with one or more other states. ↩

  14. This state shares one or more statistical areas with one or more other states. ↩

  15. This state shares one or more statistical areas with one or more other states. ↩

  16. This state shares one or more statistical areas with one or more other states. ↩

  17. This state shares one or more statistical areas with one or more other states. ↩

  18. This state shares one or more statistical areas with one or more other states. ↩

  19. This state shares one or more statistical areas with one or more other states. ↩

  20. This state shares one or more statistical areas with one or more other states. ↩

  21. This state shares one or more statistical areas with one or more other states. ↩

  22. This state shares one or more statistical areas with one or more other states. ↩

  23. This state shares one or more statistical areas with one or more other states. ↩

  24. This state shares one or more statistical areas with one or more other states. ↩

  25. This state shares one or more statistical areas with one or more other states. ↩

  26. This state shares one or more statistical areas with one or more other states. ↩

  27. This state shares one or more statistical areas with one or more other states. ↩

  28. This state shares one or more statistical areas with one or more other states. ↩

  29. This state shares one or more statistical areas with one or more other states. ↩

  30. This state shares one or more statistical areas with one or more other states. ↩

  31. This state shares one or more statistical areas with one or more other states. ↩

  32. This state shares one or more statistical areas with one or more other states. ↩

  33. This state shares one or more statistical areas with one or more other states. ↩

  34. This state shares one or more statistical areas with one or more other states. ↩

  35. This state shares one or more statistical areas with one or more other states. ↩

  36. This state shares one or more statistical areas with one or more other states. ↩

  37. This state shares one or more statistical areas with one or more other states. ↩

  38. This state shares one or more statistical areas with one or more other states. ↩

  39. This state shares one or more statistical areas with one or more other states. ↩

  40. This state shares one or more statistical areas with one or more other states. ↩

  41. This state shares one or more statistical areas with one or more other states. ↩

  42. This state shares one or more statistical areas with one or more other states. ↩

  43. This state shares one or more statistical areas with one or more other states. ↩

  44. This state shares one or more statistical areas with one or more other states. ↩

  45. This state shares one or more statistical areas with one or more other states. ↩

  46. This state shares one or more statistical areas with one or more other states. ↩

  47. This state shares one or more statistical areas with one or more other states. ↩

  48. This state shares one or more statistical areas with one or more other states. ↩

  49. The District of Columbia shares both its statistical areas with nearby states. /wiki/Washington,_D.C. ↩