Statistical area (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 2013, the U.S. Office of Management and Budget (OMB) defined and delineated 388 metropolitan statistical areas (MSAs) and 541 micropolitan statistical areas (μSAs) in the United States and Puerto Rico.[1] Many of these 929 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 2013, 524 metropolitan and micropolitan areas are components of the 169 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 urban core with a population of at least 50,000. In a micropolitan statistical area, the largest urban core has a population of at least 10,000 but less than 50,000.

Maps

An enlargeable map of the 929 core based statistical areas (MSAs and μSAs) of the United States and Puerto Rico. The 388 MSAs are shown in medium green. The 541 μSAs are shown in light green.
An enlargeable map of the 169 Combined Statistical Areas (CSAs) of the United States and Puerto Rico.

Types and distribution

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

  1. Total number of delineated areas wholly or partially in the named jurisdiction[1]
  2. The number of primary statistical areas (i.e., CSAs plus any MSAs and µSAs that are not included in a CSA) wholly or partially in the jurisdiction[1]
  3. The number of CSAs wholly or partially in the jurisdiction[1]
  4. The number of core-based statistical areas (i.e., MSAs and µSAs) wholly or partially in the jurisdiction[1]
  5. The number of MSAs wholly or partially in the jurisdiction[1]
  6. The number of µSAs wholly or partially in the jurisdiction[1]
  7. The number of counties and county-equivalents in the jurisdiction[2]

Please note: Because many metropolitan and micropolitan areas overlap jurisdictional boundaries, columns are not additive.

Number of metropolitan and micropolitan areas in the United States and Puerto Rico

Jurisdiction Delineated areas Primary statistical areas CSAs Core-based areas MSAs μSAs Counties
Alabama[3] 28 13 6 22 13 9 67
Alaska 4 4 0 4 2 2 29   29[4]
Arizona 13 10 2 11 7 4 15
Arkansas[3] 26 17 4 22 8 14 75
California[3] 41 20 7 34 26 8 58
Colorado 21 12 4 17 7 10 64
Connecticut[3] 9 3 3 6 5 1 8
Delaware[3] 4 2 1 3 3 0 3
Florida 36 19 7 29 22 7 67
Georgia[3] 46 26 8 38 15 23 159
Hawaiʻi 4 4 0 4 2 2 5
Idaho[3] 20 12 4 16 6 10 44
Illinois[3] 45 22 12 33 13 20 102
Indiana[3] 49 19 10 39 15 24 92
Iowa[3] 29 18 5 24 9 15 99
Kansas[3] 25 16 3 22 6 16 105
Kentucky[3] 32 17 7 25 9 16 120
Louisiana[3] 22 11 4 18 9 9 64   64[5]
Maine 5 3 1 4 3 1 16
Maryland[3] 11 4 2 9 7 2 24   24[6]
Massachusetts[3] 10 4 2 8 6 2 14
Michigan[3] 42 20 7 35 15 20 83
Minnesota[3] 28 17 4 24 8 16 87
Mississippi[3] 26 19 4 22 4 18 82
Missouri[3] 35 20 7 28 9 19 115    115[7]
Montana 7 7 0 7 3 4 56
Nebraska[3] 16 11 3 13 4 9 93
Nevada[3] 11 5 2 9 3 6 17    17[8]
New Hampshire[3] 8 4 1 7 2 5 10
New Jersey[3] 9 2 2 7 7 0 21
New Mexico 21 12 3 18 4 14 33
New York[3] 33 15 7 26 12 14 62
North Carolina[3] 52 21 11 41 17 24 100
North Dakota[3] 9 7 1 8 3 5 53
Ohio[3] 59 20 12 47 14 33 88
Oklahoma[3] 26 18 4 22 4 18 77
Oregon[3] 24 15 4 20 8 12 36
Pennsylvania[3] 47 21 11 36 20 16 67
Rhode Island[3] 2 1 1 1 1 0 5
South Carolina[3] 21 10 4 17 10 7 46
South Dakota[3] 14 10 2 12 3 9 66
Tennessee[3] 32 15 6 26 10 16 95
Texas[3] 80 48 12 68 25 43 254
Utah[3] 11 6 1 10 5 5 29
Vermont[3] 6 6 0 6 1 5 14
Virginia[3] 19 13 4 15 11 4 134    134[9]
Washington[3] 27 14 5 22 13 9 39
West Virginia[3] 22 12 5 17 11 6 55
Wisconsin[3] 36 16 8 28 15 13 72
Wyoming[3] 9 9 0 9 2 7 23
District of Columbia[10] 2 1 1 1 1 0 1    1[11]
United States 1083 569 166 917 381 536     3143[12]
Puerto Rico 15 5 3 12 7 5 78    78[13]
United States & Puerto Rico 1098 574 169 929 388 541     3221[14]

See also

References

  1. 1 2 3 4 5 6 7 "OMB Bulletin No. 13-01: 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. February 28, 2013. Retrieved April 2, 2013.
  2. "Annual Estimates of the Resident Population for Counties and County-Equivalents: April 1, 2010 to July 1, 2012" (CSV). 2012 Population Estimates. United States Census Bureau, Population Division. April 2012. Retrieved March 18, 2013.
  3. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 This state shares one or more statistical areas with one or more other states.
  4. The State of Alaska has 16 boroughs, 2 independent municipalities, and 11 census areas.
  5. The State of Louisiana has 64 parishes.
  6. The State of Maryland has 23 counties and 1 independent city.
  7. The State of Maryland has 114 counties, and the 1 independent city.
  8. The State of Nevada has 16 counties and 1 independent city.
  9. The Commonwealth of Virginia has 95 counties and 39 independent cities.
  10. The District of Columbia shares both its statistical areas with nearby states.
  11. The District of Columbia has no counties or other subdivisions, but the District itself is considered a county-equivalent.
  12. The United States of America has 3087 counties, parishes, and boroughs; 11 census areas; 44 independent cities and municipalities; and 1 federal district.
  13. The Commonwealth of Puerto Rico has 78 municipios.
  14. The United States and Puerto Rico have 3087 counties, parishes, and boroughs; 78 municipios; 11 census areas; 44 independent cities and municipalities; and 1 federal district.

External links

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