ZIP Codes of San Lorenzo County, PR

Population & People
Population & People
Total Population
36,728
Household Income
Household Income
Median Income
$22,964
Housing
Housing
Total Housing Units
16,375
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
40.68%
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:2:13:37 PM
Population:36,728 [See All]
FIPS:72129
CBSA:San Juan-Bayamon-Caguas, PR
Land Area:29 sq mi
Water Area:0 sq mi
Coordinates:18.1633, -65.9781
Quick Link:
https://www.zip-codes.com/county/pr-san-lorenzo.asp
Need San Lorenzo data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Puerto Rico's #28 most populous county
36,728 residents across 1 ZIPs — #28 of 78 Puerto Rico counties.

Standout ZIPs in this County


Most Populous
San Lorenzo · 36,728 people
100.0% of county total
Highest Income
San Lorenzo · $22,964 median
1.0× county average
Largest Land Area
San Lorenzo · 28.8 sq mi
Spans the most ground
Fastest Growth
San Lorenzo · -8.2% (10-yr)
40,022 → 36,728 residents
Most Educated
— no education data

Things worth knowing about San Lorenzo County


36,728 residents live across 1 ZIPs covering 29 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 40,022 to 36,728 from 2014 to 2024 — a -8.2% change. 0 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 00754 (San Lorenzo, $22,964 median) and poorest ZIP 00754 (San Lorenzo, $22,964) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Puerto Rico, this is the #28 most populous of 78 counties and ranks #48 for median household income .

Weighted by population, the typical household earns about $22,964 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 San Lorenzo County


Population decline

San Lorenzo County lost 8.2% of residents between 2014 and 2024.

All ZIP Codes in San Lorenzo County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00754San LorenzoStandard36,728$22,96428.8-8.2%

Adjacent & Nearby Counties