ZIP Codes of Salinas County, PR

Population & People
Population & People
Total Population
25,599
Household Income
Household Income
Median Income
$21,426
Housing
Housing
Total Housing Units
14,122
Business & Economy
Business & Economy
Total Businesses
0
Employment
Employment
Employment Rate
38.39%
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 (2 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:787 / 939
Timezone:GMT -04:00
Local Time:2:13:37 PM
Population:25,599 [See All]
FIPS:72123
CBSA:Coco, PR
Land Area:68 sq mi
Water Area:13 sq mi
Coordinates:17.9930, -66.2330
Quick Link:
https://www.zip-codes.com/county/pr-salinas.asp
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Notable population decline
Lost 17.7% of residents since 2014.

Standout ZIPs in this County


Most Populous
Salinas · 19,343 people
75.6% of county total
Highest Income
Salinas · $21,952 median
1.0× county average
Largest Land Area
Salinas · 58.3 sq mi
Spans the most ground
Fastest Growth
Salinas · -16.0% (10-yr)
23,020 → 19,343 residents
Most Educated
— no education data

Things worth knowing about Salinas County


25,599 residents live across 2 ZIPs covering 68 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 31,120 to 25,599 from 2014 to 2024 — a -17.7% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 00751 (Salinas, $21,952 median) and poorest ZIP 00704 (Aguirre, $20,899) are 3.8 miles apart — a 1.1× income gap across local geography.

Median home values vary 1.0× across this county — from $87,300 in 00751 (Salinas) to $91,200 in 00704 (Aguirre).

Density varies across the county — from 332 people/sq mi in 00751 (Salinas) to 646 in 00704 (Aguirre).

Within Puerto Rico, this is the #45 most populous of 78 counties and ranks #57 for median household income .

Weighted by population, the typical household earns about $21,695 across the county — reflecting what a typical resident sees, not a simple ZIP average.

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

Stories about Salinas 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.

Salinas

Population decline

Salinas County lost 17.7% of residents between 2014 and 2024. ZIPs that shed the largest share:

Aguirre
-22.8%
8,100 → 6,256 residents
Salinas
-16.0%
23,020 → 19,343 residents

All ZIP Codes in Salinas County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
00751SalinasStandard19,343$21,95258.3-16.0%
00704AguirreStandard6,256$20,8999.7-22.8%

Adjacent & Nearby Counties