ZIP Codes of Brewster County, TX

Population & People
Population & People
Total Population
9,440
Household Income
Household Income
Median Income
$49,118
Housing
Housing
Total Housing Units
5,863
Business & Economy
Business & Economy
Total Businesses
282
Employment
Employment
Employment Rate
58.29%
Education
Education
Bachelor's Degree+
45.15%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:6 ZIP Codes (2 Standard, 3 PO Box, 1 Unique) [See All]
Area Code:432
Timezone:Central (GMT -06:00)
Local Time:2:13:51 PM
Population:9,440 [See All]
FIPS:48043
Land Area:5,521 sq mi
Water Area:4 sq mi
Coordinates:29.8944, -103.4053
Quick Link:
https://www.zip-codes.com/county/tx-brewster.asp
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Texas's largest county by area
Spans 5,521 sq mi — the largest of 254 counties.

Standout ZIPs in this County


Most Populous
Alpine · 7,853 people
83.2% of county total
Highest Income
Alpine · $66,546 median
1.4× county average
Largest Land Area
Alpine · 3,519.9 sq mi
Spans the most ground
Fastest Growth
Alpine · 3.8% (10-yr)
7,569 → 7,853 residents
Most Educated
Alpine · 46.1% bachelor's+
2,840 of 6,155 adults 25+

Things worth knowing about Brewster County


9,440 residents live across 6 ZIPs covering 5,521 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 9,253 to 9,110 from 2014 to 2024 — a -1.5% change. 2 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 79830 (Alpine, $66,546 median) and poorest ZIP 79852 (Terlingua, $34,712) are 36.1 miles apart — a 1.9× income gap across local geography.

Median home values vary 2.2× across this county — from $111,200 in 79852 (Terlingua) to $240,000 in 79842 (Marathon).

Density varies 6651× across the county — from 0 people/sq mi in 79842 (Marathon) to 2,588 in 79832 (Alpine).

Educational attainment ranges from 14.3% bachelor's+ in 79852 (Terlingua) to 87.1% in 79834 (Big Bend National Park) — the breadth of educational profiles across the area.

Within Texas, this is the #165 most populous of 254 counties and ranks #232 for median household income .

Hosts 1 single-entity Unique ZIP: 79832Sul Ross State Univ .

Weighted by population, the typical household earns about $63,036 across the county — reflecting what a typical resident sees, not a simple ZIP average.

45.1% of adults age 25+ hold a bachelor's degree or higher (3,238 of 7,172 reporting).

2 Standard delivery, 3 PO Box only, 1 single-entity Unique ZIPs serve this county.

Stories about Brewster 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
5,521
square miles
Avg density
1.7
people per sq mi
Population
9,440
across 6 ZIPs
Alpine
3,519.9 sq mi
7,853 residents
Marathon
732.4 sq mi
285 residents
Big Bend National Park
667.9 sq mi
331 residents

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.

Alpine

All ZIP Codes in Brewster County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
79830AlpineStandard7,853$66,5463,519.93.8%
79852TerlinguaStandard641$34,712350.1-27.2%
79834Big Bend National ParkPO Box331$49,617667.9134.8%
79832AlpineUnique3300.1
79842MarathonPO Box285$45,596732.4-56.9%
79831AlpinePO Box250.9

Adjacent & Nearby Counties