Major statistical areas of the United States and Puerto Rico
For a list of all U.S. metropolitan areas, see
List of primary statistical areas , this article includes statistical areas that may be combined with other statistical areas in the list to form metropolitan areas
The United States Office of Management and Budget (OMB) has defined 925 core-based statistical areas (CBSAs) for the United States and 10 for Puerto Rico .[ 1] The OMB defines a core-based statistical area as one or more adjacent counties or county equivalents that have at least one urban core area of at least 10,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties. The 935 core-based statistical areas currently defined by the OMB include the 393 metropolitan statistical areas (MSAs),[ 2] which have an urban core population of at least 50,000, and the 542 micropolitan statistical areas (μSAs),[ 3] which have an urban core population of at least 10,000 but less than 50,000.
An enlargeable map of the 939 core-based statistical areas (CBSAs) of the United States and Puerto Rico as of 2020. The 392 metropolitan statistical areas (MSAs) are shown in medium green . The 547 micropolitan statistical areass (μSAs) are shown in light green .
The following sortable table lists the 925 core-based statistical areas (CBSAs) of the United States with the following information:
The CBSA rank by population as of July 1, 2023, as estimated by the United States Census Bureau [ 4]
The CBSA name as designated by the United States Office of Management and Budget [ 1]
The CBSA population as of July 1, 2023, as estimated by the United States Census Bureau[ 4]
The CBSA population as of April 1, 2020, as enumerated by the 2020 United States census [ 5]
The percent CBSA population change from April 1, 2020, to July 1, 2023[ 4]
The Combined statistical area (CSA)[ 6] if the CBSA is a component[ 1]
See the distribution of statistical areas for the number of core-based statistical areas by state.
The following sortable table lists the 10 core-based statistical areas (CBSAs) of Puerto Rico with the following information:
The CBSA rank by population as of July 1, 2023, as estimated by the United States Census Bureau [ 7]
The CBSA name as designated by the United States Office of Management and Budget [ 1]
The CBSA population as of July 1, 2023, as estimated by the United States Census Bureau[ 7]
The CBSA population as of April 1, 2020, as enumerated by the 2020 United States census [ 5]
The CBSA percent population change from April 1, 2020, to July 1, 2023[ 7]
The combined statistical area (CSA)[ 6] if the CBSA is a component[ 1]
The 10 core-based statistical areas of the Commonwealth of Puerto Rico
Rank
Core-based statistical area
2023 estimate
2020 census
Change
Encompassing combined statistical area
1
San Juan-Bayamón-Caguas, PR MSA
2,035,733
2,081,265
−2.19%
San Juan-Bayamón, PR
2
Ponce, PR MSA
266,237
278,477
−4.40%
Ponce-Coamo, PR
3
Aguadilla, PR MSA
250,435
253,768
−1.31%
Mayagüez-Aguadilla, PR
4
Mayagüez, PR MSA
207,877
213,831
−2.78%
Mayagüez-Aguadilla, PR
5
Arecibo, PR MSA
179,470
182,705
−1.77%
San Juan-Bayamón, PR
6
Guayama, PR MSA
65,190
68,442
−4.75%
San Juan-Bayamón, PR
7
Coamo, PR μSA
53,355
54,949
−2.90%
Ponce-Coamo, PR
8
Lares, PR μSA
27,729
28,105
−1.34%
San Juan-Bayamón, PR
9
Utuado, PR μSA
27,242
28,287
−3.69%
San Juan-Bayamón, PR
10
Coco, PR μSA
24,718
25,789
−4.15%
San Juan-Bayamón, PR
^ a b c d e "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 March 28, 2024 .
^ The United States Office of Management and Budget (OMB) defines a metropolitan statistical area (MSA) as a core-based statistical area having at least one urbanized area of 50,000 or more population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.
^ The United States Office of Management and Budget (OMB) defines a micropolitan statistical area (μSA) as a core-based statistical area having at least one urban cluster of at least 10,000 but less than 50,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.
^ a b c "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023" (XLS ) . 2023 Population Estimates . United States Census Bureau , Population Division. Retrieved March 28, 2024 .
^ a b "P1: Total Population" . United States Census Bureau , Population Division. Retrieved March 28, 2024 .
^ a b The United States Office of Management and Budget (OMB) defines a CSA (CSA) as an aggregate of adjacent core-based statistical areas that are linked by commuting ties.
^ a b c "Annual Estimates of the Resident Population for Puerto Rico Municipios: April 1, 2020 to July 1, 2023" (XLS ) . 2023 Population Estimates . United States Census Bureau , Population Division. July 2023. Retrieved March 29, 2024 .
Regions Native areas Metropolitan State-level County-level Local