ZIP Codes of San Patricio County, TX

Population & People
Population & People
Total Population
76,326
Household Income
Household Income
Median Income
$63,239
Housing
Housing
Total Housing Units
33,692
Business & Economy
Business & Economy
Total Businesses
1,166
Employment
Employment
Employment Rate
54.88%
Education
Education
Bachelor's Degree+
17.49%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:10 ZIP Codes (7 Standard, 3 PO Box, 0 Unique) [See All]
Area Code:361
Timezone:Central (GMT -06:00)
Local Time:2:14:02 PM
Population:76,326 [See All]
FIPS:48409
CBSA:Corpus Christi, TX
Land Area:890 sq mi
Water Area:53 sq mi
Coordinates:27.9633, -97.4168
Quick Link:
https://www.zip-codes.com/county/tx-san-patricio.asp
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Texas's #50 most populous county
76,326 residents across 10 ZIPs — #50 of 254 Texas counties.

Standout ZIPs in this County


Most Populous
Portland · 20,408 people
26.7% of county total
Highest Income
Portland · $83,504 median
1.3× county average
Largest Land Area
Mathis · 247.2 sq mi
Spans the most ground
Fastest Growth
Portland · 20.5% (10-yr)
16,930 → 20,408 residents
Most Educated
Portland · 25.7% bachelor's+
3,344 of 13,028 adults 25+

Things worth knowing about San Patricio County


76,326 residents live across 10 ZIPs covering 890 sq mi, served by 9 distinct USPS-recognized cities.

Population moved from 70,142 to 76,326 from 2014 to 2024 — a +8.8% change. 7 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 78374 (Portland, $83,504 median) and poorest ZIP 78359 (Gregory, $45,458) are 2.6 miles apart — a 1.8× income gap across local geography.

Median home values vary 2.5× across this county — from $95,300 in 78368 (Mathis) to $233,800 in 78374 (Portland).

Density varies 38× across the county — from 33 people/sq mi in 78390 (Taft) to 1,253 in 78374 (Portland).

Educational attainment ranges from 5.0% bachelor's+ in 78359 (Gregory) to 25.7% in 78374 (Portland) — the breadth of educational profiles across the area.

Within Texas, this is the #50 most populous of 254 counties and ranks #163 for median household income with the #69 fastest decade growth .

Weighted by population, the typical household earns about $66,753 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.5% of adults age 25+ hold a bachelor's degree or higher (8,880 of 50,784 reporting).

7 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about San Patricio County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
890
square miles
Avg density
85.7
people per sq mi
Population
76,326
across 10 ZIPs
Mathis
247.2 sq mi
9,464 residents
Sinton
242.8 sq mi
9,640 residents
Taft
183.0 sq mi
6,013 residents

All ZIP Codes in San Patricio County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
78374PortlandStandard20,408$83,50416.320.5%
78336Aransas PassStandard12,424$58,42061.34.4%
78362InglesideStandard10,816$71,05821.114.3%
78387SintonStandard9,640$53,048242.8-5.6%
78368MathisStandard9,464$46,486247.20.6%
78390TaftStandard6,013$78,367183.010.9%
78370OdemStandard5,353$69,570115.017.4%
78359GregoryPO Box2,154$45,4583.52.3%
78352EdroyPO Box540.1-64.7%
78335Aransas PassPO Box0.0

Adjacent & Nearby Counties