Moca Municipio area

Moca Municipio, Puerto Rico covers 50.4 square miles: 50.4 square miles of land and 0.022 square miles of water. Its county seat is Moca. An estimated 37,562 people lived there in 2025.

Official Census measurements · GEOID 720992026 Gazetteer · retrieved September 27, 2026
Land area50.4 mi²
Water area0.022 mi²
Population (2025)37,562
People per mi²746

County outline

Generalized outline of Moca Municipio, Puerto Rico
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Moca Municipio is located

Moca Municipio highlighted on a map of all U.S. county equivalents. Puerto Rico is repositioned as an inset at the common scale. About the maps

Area breakdown

Land accounts for 100% of Moca Municipio’s measured area and water for 0%. Its combined area converts to 130.5 square kilometers or approximately 32,246 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land50.362130.43732,231.7
Water0.0220.05714.1
Total50.384130.49432,245.8

How Moca Municipio compares

By original Census land area, Moca Municipio ranks #26 of 78 in Puerto Rico and #3130 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.199 times the Puerto Rico county-equivalent median of 42 square miles. It accounts for 1.5% of the combined county land area in the state.

See the complete Puerto Rico ranking · What counts as a county equivalent?

Population and density of Moca Municipio

The Census Bureau estimates that 37,562 people lived in Moca Municipio on July 1, 2025. That ranks #1,278 of 3,222 county equivalents nationally and #26 of 78 in Puerto Rico. Since the April 1, 2020 estimates base of 37,460, the population has grown by 102 (+0.3%), compared with −3.1% for Puerto Rico as a whole.

With 50.4 square miles of land, that is 746 people per square mile (288 per km²), placing Moca Municipio #247 nationally for density and #41 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 0.858 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate37,46937,51837,29537,35637,58937,562
Change—+49−223+61+233−27

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 Moca Municipio

Puerto Rico has no incorporated places below the municipio: Moca 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

Moca Municipio is a central county of the Aguadilla, PR Metropolitan Statistical Area. Its 7 county equivalents have 250,088 residents on 297.1 square miles of land; Moca Municipio accounts for 17% of the land and 15% of the residents. By combined land it ranks #387 of 393 metropolitan areas, and #199 by population. It belongs to the Mayagüez-Aguadilla, PR Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Aguadilla Municipio53,21936.5
Isabela Municipio42,93855.3
San Sebastián Municipio39,01970.5
Moca Municipio37,56250.4
Aguada Municipio37,31930.8
Añasco Municipio24,44939.3
Rincón Municipio15,58214.3

ZIP codes

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

00603006100067600685

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 Moca Municipio

Moca Municipio shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is San Sebastián Municipio (70.5 mi²) and the smallest is Aguada Municipio (30.8 mi²). Together with its neighbors, Moca Municipio forms a block of 282.8 mi² of land, of which it holds 17.8%.

Map of Moca Municipio and the 5 county equivalents that border it Aguadilla Municipio, Puerto Rico: 36.5 mi² landSan Sebastián Municipio, Puerto Rico: 70.5 mi² landIsabela Municipio, Puerto Rico: 55.3 mi² landAñasco Municipio, Puerto Rico: 39.3 mi² landAguada Municipio, Puerto Rico: 30.8 mi² land
Moca Municipio (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. MocaCompare
San Sebastián Municipio70.51.4× largerCompare
Isabela Municipio55.31.1× largerCompare
Añasco Municipio39.31.3× smallerCompare
Aguadilla Municipio36.51.4× smallerCompare
Aguada Municipio30.81.6× smallerCompare

How big is Moca Municipio compared with U.S. states?

Moca Municipio has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 21 times as much. Puerto Rico’s county land could hold about 68 areas the size of Moca Municipio.

Land area: Moca Municipio and the closest-sized states
Moca Municipio50.4 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 7.10 miles (11.4 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 Moca Municipio?

Moca Municipio has more land than 92 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Moca Municipio50.4 mi²
Puerto Rico median42 mi²
National median604.5 mi²

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 Moca Municipio at #3,155 nationally by total area, 25 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0%, compared with a national county-equivalent median of 1.2% — 1.1 percentage points lower. 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 Moca Municipio in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#3129Vieques Municipio, Puerto Rico50.8Compare
#3130Moca Municipio, Puerto Rico50.4This county
#3131Lynchburg city, Virginia48.9Compare

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.

Representative coordinates

The Census internal point is 18.375433, -67.079694. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 130,437,487 m²; AWATER: 57,370 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Moca Municipio?

Moca Municipio, Puerto Rico has 50.4 square miles (130.4 km²) of land and 0.022 square miles of water, for a total area of 50.4 square miles. It ranks #3130 of 3,222 U.S. county equivalents by land area.

Is Moca Municipio the largest county in Puerto Rico?

No. Moca Municipio ranks #26 of 78 in Puerto Rico by land area. The largest is Arecibo Municipio, with 126 square miles of land.

What counties border Moca Municipio?

Moca Municipio shares a land border with Aguadilla Municipio, San Sebastián Municipio, Isabela Municipio, Añasco Municipio, and Aguada Municipio.

What is the population of Moca Municipio?

The Census Bureau estimates Moca Municipio had 37,562 residents on July 1, 2025, ranking #1,278 of 3,222 county equivalents. That is 746 people per square mile of land.

What is the county seat of Moca Municipio?

The county seat of Moca Municipio is Moca.

Is Moca Municipio part of a metropolitan area?

Yes. It is a central county of the Aguadilla, PR Metropolitan Statistical Area, which has 7 county equivalents and 250,088 residents.

How many ZIP codes are in Moca Municipio?

4 ZIP Code Tabulation Areas have land in Moca Municipio, and 1 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Moca Municipio compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 20.5 times as much land.

How many acres of land are in Moca Municipio?

The land measurement converts to approximately 32,232 acres. Including water, total area is approximately 32,246 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset