# Puerto Rico statistical areas

The Commonwealth of Puerto Rico currently has 13 statistical areas that have been delineated by the United States Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated three combined statistical areas, six metropolitan statistical areas, and four micropolitan statistical areas in Puerto Rico. As of 2023, the largest of these is the San Juan-Bayamón, PR CSA, comprising the area around the municipality of San Juan, the capital and largest city of Puerto Rico.

## Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico. These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.
The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population, "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core". The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.
The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%. The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

## All statistical areas

The 13 United States statistical areas and 78 municipios of the Commonwealth of Puerto Rico :
| Combined statistical area | 2023 population (est.) | Core-based statistical area | 2023 population (est.) | Municipio | 2023 population (est.) |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | San Juan Municipio | 333,005 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Bayamón Municipio | 180,835 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Carolina Municipio | 150,843 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Caguas Municipio | 124,608 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Guaynabo Municipio | 89,039 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Toa Baja Municipio | 71,888 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Trujillo Alto Municipio | 66,705 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Toa Alta Municipio | 65,957 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Vega Baja Municipio | 53,527 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Humacao Municipio | 49,712 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Río Grande Municipio | 45,568 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Canóvanas Municipio | 41,513 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Cayey Municipio | 40,525 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Gurabo Municipio | 39,971 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Cidra Municipio | 39,418 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Manatí Municipio | 38,655 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | San Lorenzo Municipio | 37,264 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Juncos Municipio | 36,684 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Dorado Municipio | 35,702 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Las Piedras Municipio | 34,750 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Vega Alta Municipio | 34,638 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Corozal Municipio | 34,348 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Fajardo Municipio | 31,166 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Naranjito Municipio | 29,282 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Barranquitas Municipio | 29,020 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Yabucoa Municipio | 28,897 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Morovis Municipio | 28,197 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Aibonito Municipio | 24,602 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Aguas Buenas Municipio | 23,274 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Naguabo Municipio | 22,838 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Barceloneta Municipio | 22,376 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Loíza Municipio | 22,302 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Cataño Municipio | 22,108 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Orocovis Municipio | 21,204 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Comerío Municipio | 18,601 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Luquillo Municipio | 17,386 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Ciales Municipio | 16,691 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Florida Municipio | 11,525 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Ceiba Municipio | 10,843 |
| San Juan-Bayamón, PR CSA | 2,360,082 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | Maunabo Municipio | 10,266 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Arecibo, PR MSA | 179,470 | Arecibo Municipio | 85,641 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Arecibo, PR MSA | 179,470 | Hatillo Municipio | 37,950 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Arecibo, PR MSA | 179,470 | Camuy Municipio | 32,625 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Arecibo, PR MSA | 179,470 | Quebradillas Municipio | 23,254 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Guayama, PR MSA | 65,190 | Guayama Municipio | 34,765 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Guayama, PR MSA | 65,190 | Patillas Municipio | 15,347 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Guayama, PR MSA | 65,190 | Arroyo Municipio | 15,078 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Lares, PR μSA | 27,729 | Lares Municipio | 27,729 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Utuado, PR μSA | 27,242 | Utuado Municipio | 27,242 |
| San Juan-Bayamón, PR CSA | 2,360,082 | Coco, PR μSA | 27,128 | Salinas Municipio | 27,128 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Aguadilla Municipio | 53,622 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Isabela Municipio | 42,794 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | San Sebastián Municipio | 38,926 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Aguada Municipio | 37,528 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Moca Municipio | 37,325 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Añasco Municipio | 24,815 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Aguadilla, PR MSA | 250,435 | Rincón Municipio | 15,425 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | Mayagüez Municipio | 69,798 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | Cabo Rojo Municipio | 46,665 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | San Germán Municipio | 30,996 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | Lajas Municipio | 22,872 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | Sabana Grande Municipio | 22,210 |
| Mayagüez-Aguadilla, PR CSA | 458,312 | Mayagüez, PR MSA | 207,877 | Hormigueros Municipio | 15,336 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Ponce Municipio | 130,251 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Juana Díaz Municipio | 45,919 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Yauco Municipio | 32,406 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Villalba Municipio | 21,285 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Peñuelas Municipio | 19,563 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Adjuntas Municipio | 17,900 |
| Ponce-Coamo, PR CSA | 337,492 | Ponce, PR MSA | 284,137 | Guayanilla Municipio | 16,813 |
| Ponce-Coamo, PR CSA | 337,492 | Coamo, PR μSA | 53,355 | Coamo Municipio | 33,662 |
| Ponce-Coamo, PR CSA | 337,492 | Coamo, PR μSA | 53,355 | Santa Isabel Municipio | 19,693 |
| none | none | none | none | Jayuya Municipio | 14,435 |
| none | none | none | none | Guánica Municipio | 12,415 |
| none | none | none | none | Las Marías Municipio | 8,672 |
| none | none | none | none | Vieques Municipio | 7,999 |
| none | none | none | none | Maricao Municipio | 4,523 |
| none | none | none | none | Culebra Municipio | 1,761 |
| Commonwealth of Puerto Rico | Commonwealth of Puerto Rico | Commonwealth of Puerto Rico | Commonwealth of Puerto Rico | Commonwealth of Puerto Rico | 3,205,691 |

## Core-based statistical areas

The following table provides the population ranking of each CBSA along with its rate of population change over time.
The 10 core-based statistical areas of the Commonwealth of Puerto Rico :
| 2023 rank | Core-based statistical area | Population | Population | Population | Population | Population |
| 2023 rank | Core-based statistical area | 2023 estimate | Change | 2020 Census | Change | 2010 Census |
| 1 | San Juan-Bayamón-Caguas, PR MSA | 2,035,733 | −2.19% | 2,081,265 | −11.44% | 2,350,126 |
| 2 | Ponce, PR MSA | 284,137 | −4.17% | 296,497 | −15.42% | 350,536 |
| 3 | Aguadilla, PR MSA | 250,435 | −1.31% | 253,768 | −7.90% | 275,539 |
| 4 | Mayagüez, PR MSA | 207,877 | −2.78% | 213,831 | −12.29% | 243,792 |
| 5 | Arecibo, PR MSA | 179,470 | −1.77% | 182,705 | −8.41% | 199,471 |
| 6 | Guayama, PR MSA | 65,190 | −4.75% | 68,442 | −18.73% | 84,214 |
| 7 | Coamo, PR μSA | 53,355 | −2.90% | 54,949 | −13.85% | 63,786 |
| 8 | Lares, PR μSA | 27,729 | −1.34% | 28,105 | −8.61% | 30,753 |
| 9 | Utuado, PR μSA | 27,242 | −3.69% | 28,287 | −14.67% | 33,149 |
| 10 | Coco, PR μSA | 24,718 | −4.15% | 25,789 | −17.02% | 31,078 |

## Combined statistical areas

The following table provides the population ranking of each CSA along with its rate of population change over time.
The three combined statistical areas of the Commonwealth of Puerto Rico :
| 2023 rank | Combined statistical area | Population | Population | Population | Population | Population |
| 2023 rank | Combined statistical area | 2023 estimate | Change | 2020 Census | Change | 2010 Census |
| 1 | San Juan-Bayamón, PR CSA | 2,360,082 | −2.26% | 2,414,593 | −11.51% | 2,728,791 |
| 2 | Mayagüez-Aguadilla, PR CSA | 458,312 | −1.99% | 467,599 | −9.96% | 519,331 |
| 3 | Ponce-Coamo, PR CSA | 337,492 | −3.97% | 351,446 | −15.18% | 414,322 |