ZIP Codes of Lares County, PR

Population & People
Population & People
Total Population
28,738
Household Income
Household Income
Median Income
$19,028
Housing
Housing
Total Housing Units
13,355
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
37.00%
Education
Education
Bachelor's Degree+
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 2 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:2 ZIP Codes (1 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:787 / 939
Timezone:GMT -04:00
Local Time:2:13:36 PM
Population:28,738 [See All]
FIPS:72081
CBSA:Lares, PR
Land Area:90 sq mi
Water Area:0 sq mi
Coordinates:18.2299, -66.8656
Quick Link:
https://www.zip-codes.com/county/pr-lares.asp
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Puerto Rico's #42 most populous county
28,738 residents across 2 ZIPs — #42 of 78 Puerto Rico counties.

Standout ZIPs in this County


Most Populous
Lares · 27,417 people
95.4% of county total
Highest Income
Castaner · $19,278 median
1.0× county average
Largest Land Area
Lares · 47.8 sq mi
Spans the most ground
Fastest Growth
Lares · -3.6% (10-yr)
28,442 → 27,417 residents
Most Educated
— no education data

Things worth knowing about Lares County


28,738 residents live across 2 ZIPs covering 90 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 30,289 to 28,738 from 2014 to 2024 — a -5.1% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 00631 (Castaner, $19,278 median) and poorest ZIP 00669 (Lares, $18,778) are 8.2 miles apart — a 1.0× income gap across local geography.

Median home values vary 1.1× across this county — from $99,800 in 00631 (Castaner) to $105,300 in 00669 (Lares).

Density varies 18× across the county — from 31 people/sq mi in 00631 (Castaner) to 573 in 00669 (Lares).

Within Puerto Rico, this is the #42 most populous of 78 counties and ranks #71 for median household income .

Weighted by population, the typical household earns about $18,801 across the county — reflecting what a typical resident sees, not a simple ZIP average.

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

Stories about Lares County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Lares

Population decline

Lares County lost 5.1% of residents between 2014 and 2024. ZIPs that shed the largest share:

Castaner
-28.5%
1,847 → 1,321 residents

All ZIP Codes in Lares County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00669LaresStandard27,417$18,77847.8-3.6%
00631CastanerPO Box1,321$19,27842.4-28.5%

Adjacent & Nearby Counties