ZIP Codes of Las Piedras County, PR

Population & People
Population & People
Total Population
35,094
Household Income
Household Income
Median Income
$24,891
Housing
Housing
Total Housing Units
15,694
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
41.05%
Education
Education
Bachelor's Degree+
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 1 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:1 ZIP Codes (1 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:787 / 939
Timezone:GMT -04:00
Local Time:2:13:36 PM
Population:35,094 [See All]
FIPS:72085
CBSA:San Juan-Bayamon-Caguas, PR
Land Area:29 sq mi
Water Area:0 sq mi
Coordinates:18.1975, -65.8608
Quick Link:
https://www.zip-codes.com/county/pr-las-piedras.asp
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Puerto Rico's #30 most populous county
35,094 residents across 1 ZIPs — #30 of 78 Puerto Rico counties.

Standout ZIPs in this County


Most Populous
Las Piedras · 35,094 people
100.0% of county total
Highest Income
Las Piedras · $24,891 median
1.0× county average
Largest Land Area
Las Piedras · 29.4 sq mi
Spans the most ground
Fastest Growth
Las Piedras · -8.7% (10-yr)
38,435 → 35,094 residents
Most Educated
— no education data

Things worth knowing about Las Piedras County


35,094 residents live across 1 ZIPs covering 29 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 38,435 to 35,094 from 2014 to 2024 — a -8.7% change. 0 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 00771 (Las Piedras, $24,891 median) and poorest ZIP 00771 (Las Piedras, $24,891) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Puerto Rico, this is the #30 most populous of 78 counties and ranks #30 for median household income .

Weighted by population, the typical household earns about $24,891 across the county — reflecting what a typical resident sees, not a simple ZIP average.

1 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Las Piedras County


Population decline

Las Piedras County lost 8.7% of residents between 2014 and 2024.

All ZIP Codes in Las Piedras County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00771Las PiedrasStandard35,094$24,89129.4-8.7%

Adjacent & Nearby Counties