PR · GEOID 72035

Cayey Municipio area

Cayey Municipio, Puerto Rico covers 51.9 square miles: 51.9 square miles of land and 0 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area51.9 mi²
Water area0 mi²
Total area51.9 mi²
National land rank#3126

County outline

Generalized outline of Cayey 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 Cayey Municipio is located

Cayey 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 99.9% of Cayey Municipio’s measured area and water for 0.1%. Its combined area converts to 134.5 square kilometers or approximately 33,238 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land51.909134.44433,221.8
Water0.0260.06716.6
Total51.935134.51133,238.4

How Cayey Municipio compares

By original Census land area, Cayey Municipio ranks #23 of 78 in Puerto Rico and #3126 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.236 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?

What stands out about Cayey Municipio?

Cayey Municipio has more land than 96 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Cayey Municipio51.9 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 Cayey Municipio at #3,154 nationally by total area, 28 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 0.1%, 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 Cayey Municipio in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#3125San Lorenzo Municipio, Puerto Rico53.1Compare
#3126Cayey Municipio, Puerto Rico51.9This county
#3127Naguabo Municipio, Puerto Rico51.7Compare

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 18.103624, -66.151671. 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: 134,444,464 m²; AWATER: 68,567 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 many acres of land are in Cayey Municipio?

The land measurement converts to approximately 33,222 acres. Including water, total area is approximately 33,238 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