ZIP Codes of Juncos County, PR

Population & People
Population & People
Total Population
37,446
Household Income
Household Income
Median Income
$29,928
Housing
Housing
Total Housing Units
17,278
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
47.09%
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:37,446 [See All]
FIPS:72077
CBSA:San Juan-Bayamon-Caguas, PR
Land Area:31 sq mi
Water Area:0 sq mi
Coordinates:18.2141, -65.9141
Quick Link:
https://www.zip-codes.com/county/pr-juncos.asp
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Puerto Rico's #24 most populous county
37,446 residents across 1 ZIPs — #24 of 78 Puerto Rico counties.

Standout ZIPs in this County


Most Populous
Juncos · 37,446 people
100.0% of county total
Highest Income
Juncos · $29,928 median
1.0× county average
Largest Land Area
Juncos · 31.1 sq mi
Spans the most ground
Fastest Growth
Juncos · -8.4% (10-yr)
40,863 → 37,446 residents
Most Educated
— no education data

Things worth knowing about Juncos County


37,446 residents live across 1 ZIPs covering 31 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 40,863 to 37,446 from 2014 to 2024 — a -8.4% change. 0 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 00777 (Juncos, $29,928 median) and poorest ZIP 00777 (Juncos, $29,928) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Puerto Rico, this is the #24 most populous of 78 counties and ranks #11 for median household income .

Weighted by population, the typical household earns about $29,928 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 Juncos County


Population decline

Juncos County lost 8.4% of residents between 2014 and 2024.

All ZIP Codes in Juncos County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00777JuncosStandard37,446$29,92831.1-8.4%

Adjacent & Nearby Counties