ZIP Codes of Guayama County, PR

Population & People
Population & People
Total Population
34,981
Household Income
Household Income
Median Income
$20,558
Housing
Housing
Total Housing Units
18,808
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
36.36%
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:2:13:35 PM
Population:34,981 [See All]
FIPS:72057
CBSA:Guayama, PR
Land Area:62 sq mi
Water Area:6 sq mi
Coordinates:17.9916, -66.1312
Quick Link:
https://www.zip-codes.com/county/pr-guayama.asp
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Notable population decline
Lost 19.1% of residents since 2014.

Standout ZIPs in this County


Most Populous
Guayama · 34,981 people
100.0% of county total
Highest Income
Guayama · $20,558 median
1.0× county average
Largest Land Area
Guayama · 61.9 sq mi
Spans the most ground
Fastest Growth
Guayama · -19.1% (10-yr)
43,251 → 34,981 residents
Most Educated
— no education data

Things worth knowing about Guayama County


34,981 residents live across 2 ZIPs covering 62 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 43,251 to 34,981 from 2014 to 2024 — a -19.1% change. 0 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 00784 (Guayama, $20,558 median) and poorest ZIP 00784 (Guayama, $20,558) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Puerto Rico, this is the #31 most populous of 78 counties and ranks #64 for median household income .

Weighted by population, the typical household earns about $20,558 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 Guayama County


Population decline

Guayama County lost 19.1% of residents between 2014 and 2024. ZIPs that shed the largest share:

Guayama
-19.1%
43,251 → 34,981 residents

All ZIP Codes in Guayama County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00784GuayamaStandard34,981$20,55861.9-19.1%
00785GuayamaPO Box0.0

Adjacent & Nearby Counties