List of United States cities by population Puerto Rico Puerto Rico

| _2012_rank | Municipio | _2010_land_area | _2010_population_density | ANSI | Location_ |
|---|---|---|---|---|---|
| 1 | San Juan | 39.500sqmi 102.305km 2 | 10008persqmi 3,864km −2 | 02414943 | 18.4064°N 66.0640°W |
| 2 | Bayamón | 26.971sqmi 69.854km 2 | 7716persqmi 2,979km −2 | 02415307 | 18.3801°N 66.1633°W |
| 3 | Carolina | 20.653sqmi 53.490km 2 | 8559persqmi 3,305km −2 | 02415327 | 18.4121°N 65.9798°W |
| 4 | Ponce | 30.607sqmi 79.273km 2 | 5434persqmi 2,098km −2 | 02414913 | 17.9874°N 66.6097°W |
| 5 | Caguas | 10.916sqmi 28.272km 2 | 13090persqmi 5,054km −2 | 02415318 | 18.2324°N 66.0390°W |