Most Dense in Puerto Rico

Top 54 cities ranked by most dense

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All Countries · United States · Puerto Rico

Most Dense — Puerto Rico

1 Caño Martin Peña comunidad 16,678/mi²

2 Mansión del Mar comunidad 9,757/mi²

3 San Isidro comunidad 9,417/mi²

4 Río Grande zona urbana 8,931/mi²

5 San Juan zona urbana 8,056/mi²

6 Sabana Seca comunidad 7,295/mi²

7 Luquillo zona urbana 7,039/mi²

8 Carolina zona urbana 6,714/mi²

9 Caguas zona urbana 6,685/mi²

10 Pájaros comunidad 6,473/mi²

11 Bayamón zona urbana 6,176/mi²

12 Juncos zona urbana 5,951/mi²

13 Trujillo Alto zona urbana 5,912/mi²

14 Guaynabo zona urbana 5,816/mi²

15 Aibonito zona urbana 5,800/mi²

16 Cayey zona urbana 5,716/mi²

17 Peñuelas zona urbana 5,561/mi²

18 Gurabo zona urbana 5,545/mi²

19 Cidra zona urbana 5,292/mi²

20 Juana Díaz zona urbana 5,249/mi²

21 Coamo zona urbana 5,222/mi²

22 Arroyo zona urbana 5,204/mi²

23 Manatí zona urbana 5,168/mi²

24 Yauco zona urbana 5,139/mi²

25 San Lorenzo zona urbana 5,071/mi²

26 Puerto Real comunidad 5,049/mi²

27 Guayama zona urbana 4,867/mi²

28 Corozal zona urbana 4,807/mi²

29 Candelaria comunidad 4,773/mi²

30 Ceiba zona urbana 4,749/mi²

31 Cataño zona urbana 4,714/mi²

32 Vega Alta zona urbana 4,593/mi²

33 San Sebastián zona urbana 4,541/mi²

34 Canóvanas zona urbana 4,490/mi²

35 Yabucoa zona urbana 4,415/mi²

36 Sabana Grande zona urbana 4,407/mi²

37 Aguadilla zona urbana 4,406/mi²

38 Utuado zona urbana 4,198/mi²

39 Dorado zona urbana 4,162/mi²

40 Isabela zona urbana 4,062/mi²

41 Cabo Rojo zona urbana 3,908/mi²

42 Ponce zona urbana 3,872/mi²

43 San Germán zona urbana 3,803/mi²

44 Las Piedras zona urbana 3,792/mi²

45 Vega Baja zona urbana 3,726/mi²

46 San Antonio comunidad (Dorado Municipio) 3,465/mi²

47 Humacao zona urbana 3,224/mi²

48 Quebradillas zona urbana 3,224/mi²

49 Coco comunidad 3,163/mi²

50 Fajardo zona urbana 3,136/mi²

51 Mayagüez zona urbana 2,833/mi²

52 Arecibo zona urbana 2,594/mi²

53 Hormigueros zona urbana 2,526/mi²

54 Guánica zona urbana 2,083/mi²

The most densely populated cities in Puerto Rico pack the most residents per square mile, creating vibrant urban environments with walkable neighborhoods and extensive public transit. Caño Martin Peña comunidad leads with 16,678 people per square mile.

High population density is often associated with better access to public transportation, more walkable streets, and a wider variety of restaurants, shops, and entertainment options within close proximity. These cities tend to have lower car ownership rates and shorter commute distances.

Dense cities face unique challenges including higher housing costs, limited parking, and potential overcrowding in public spaces. However, they also tend to have lower per-capita carbon footprints due to shared infrastructure and reduced driving.

Did You Know?

1. Caño Martin Peña comunidad has 16,678 people per square mile — that's roughly 26 people per acre.
2. Dense cities tend to have the most walkable neighborhoods and lowest car ownership rates in the country.
3. Urban density can reduce per-capita carbon emissions by up to 50% compared to suburban sprawl.

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