Juana Díaz Municipio area

Population and density of Juana Díaz Municipio

The Census Bureau estimates that 45,853 people lived in Juana Díaz Municipio on July 1, 2025. That ranks #1,093 of 3,222 county equivalents nationally and #16 of 78 in Puerto Rico. Since the April 1, 2020 estimates base of 46,541, the population has declined by 688 (−1.5%), compared with −3.1% for Puerto Rico as a whole.

With 60.4 square miles of land, that is 760 people per square mile (293 per km²), placing Juana Díaz Municipio #239 nationally for density and #39 in Puerto Rico. The median county equivalent has 47 people per square mile; the Puerto Rico median is 754. Put another way, there are about 0.843 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Juana Díaz Municipio

Puerto Rico has no incorporated places below the municipio: Juana Díaz Municipio is itself the local government. The Census Bureau describes the settlements inside it, such as zonas urbanas and comunidades, as statistical places, and publishes no separate annual estimates for them.

Metropolitan area

Juana Díaz Municipio is an outlying county of the Ponce, PR Metropolitan Statistical Area. Its 6 county equivalents have 262,792 residents on 365.6 square miles of land; Juana Díaz Municipio accounts for 16.5% of the land and 17.4% of the residents. By combined land it ranks #383 of 393 metropolitan areas, and #194 by population. It belongs to the Ponce-Coamo, PR Combined Statistical Area.

ZIP codes

3 ZIP Code Tabulation Areas have land in Juana Díaz Municipio; 1 of them have most of their land inside the county, and the others mainly cover neighboring areas.

007150078000795

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Juana Díaz Municipio

Juana Díaz Municipio shares a land border with 6 county equivalents. It has more land than 3 of them. The largest neighbor is Ponce Municipio (114.9 mi²) and the smallest is Santa Isabel Municipio (34.1 mi²). Together with its neighbors, Juana Díaz Municipio forms a block of 431.1 mi² of land, of which it holds 14%.

How big is Juana Díaz Municipio compared with U.S. states?

Juana Díaz Municipio has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 17 times as much. Puerto Rico’s county land could hold about 57 areas the size of Juana Díaz Municipio.

Another way to picture it: the same land area would fill a square about 7.77 miles (12.5 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Juana Díaz Municipio?

Juana Díaz Municipio has more land than 107 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Juana Díaz Municipio at #3,103 nationally by total area, 12 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 43.7%, compared with a national county-equivalent median of 1.2% — 42.5 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Juana Díaz Municipio in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.