| Population tables of U.S. cities |
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The skyline ofNew York City, the most populous city in theUnited States |
| Cities |
| Population |
| Urban areas |
| Populous cities and metropolitan areas |
| Metropolitan areas |
| Megaregions |
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TheUnited States federal government defines and delineates the nation'smetropolitan areas for statistical purposes, using a set of standardstatistical area definitions. As of 2023,[update] the U.S.Office of Management and Budget (OMB) defined and delineated 393metropolitan statistical areas (MSAs) and 542micropolitan statistical areas (μSAs) in the United States and Puerto Rico.[1] Many of these 935 MSAs and μSAs are, in turn, components of largercombined statistical areas (CSAs) consisting of adjacent MSAs and μSAs that are linked bycommuting 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 adjacentcounties orcounty equivalents with at least oneurban core area meeting relevant population thresholds, plus adjacent territory that has a high degree of social andeconomic integration with the core, as measured by commuting ties. A metropolitan statistical area has at least onecore 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.


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