ZIP Codes of San Jacinto County, TX

Population & People
Population & People
Total Population
18,217
Household Income
Household Income
Median Income
$66,072
Housing
Housing
Total Housing Units
10,286
Business & Economy
Business & Economy
Total Businesses
187
Employment
Employment
Employment Rate
45.87%
Education
Education
Bachelor's Degree+
16.50%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 4 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:832 / 936
Timezone:Central (GMT -06:00)
Local Time:2:14:02 PM
Population:18,217 [See All]
FIPS:48407
CBSA:Houston-Pasadena-The Woodlands, TX
Land Area:424 sq mi
Water Area:30 sq mi
Coordinates:30.6576, -95.1641
Quick Link:
https://www.zip-codes.com/county/tx-san-jacinto.asp
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Texas's #130 most populous county
18,217 residents across 4 ZIPs — #130 of 254 Texas counties.

Standout ZIPs in this County


Most Populous
Shepherd · 7,800 people
42.8% of county total
Highest Income
Shepherd · $83,594 median
1.3× county average
Largest Land Area
Coldspring · 206.8 sq mi
Spans the most ground
Fastest Growth
Pointblank · 43.8% (10-yr)
1,515 → 2,178 residents
Most Educated
Pointblank · 25.9% bachelor's+
487 of 1,882 adults 25+

Things worth knowing about San Jacinto County


18,217 residents live across 4 ZIPs covering 424 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 16,894 to 18,217 from 2014 to 2024 — a +7.8% change. 2 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 77371 (Shepherd, $83,594 median) and poorest ZIP 77359 (Oakhurst, $55,625) are 27.1 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.3× across this county — from $195,000 in 77371 (Shepherd) to $246,200 in 77331 (Coldspring).

Density varies across the county — from 20 people/sq mi in 77359 (Oakhurst) to 63 in 77371 (Shepherd).

Educational attainment ranges from 6.7% bachelor's+ in 77371 (Shepherd) to 33.3% in 77359 (Oakhurst) — the breadth of educational profiles across the area.

Within Texas, this is the #130 most populous of 254 counties and ranks #138 for median household income with the #75 fastest decade growth .

Weighted by population, the typical household earns about $71,230 across the county — reflecting what a typical resident sees, not a simple ZIP average.

16.5% of adults age 25+ hold a bachelor's degree or higher (2,196 of 13,309 reporting).

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

All ZIP Codes in San Jacinto County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
77371ShepherdStandard7,800$83,594122.8-6.1%
77331ColdspringStandard7,556$62,321206.823.4%
77364PointblankStandard2,178$62,75060.243.8%
77359OakhurstStandard683$55,62533.6-28.0%

Adjacent & Nearby Counties