ZIP Codes of Nolan County, TX

Population & People
Population & People
Total Population
15,051
Household Income
Household Income
Median Income
$67,554
Housing
Housing
Total Housing Units
7,581
Business & Economy
Business & Economy
Total Businesses
347
Employment
Employment
Employment Rate
55.04%
Education
Education
Bachelor's Degree+
16.18%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:325
Timezone:Central (GMT -06:00)
Local Time:11:55:20 PM
Population:15,051 [See All]
FIPS:48353
CBSA:Sweetwater, TX
Land Area:1,064 sq mi
Water Area:6 sq mi
Coordinates:32.3087, -100.3835
Quick Link:
https://www.zip-codes.com/county/tx-nolan.asp
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Texas's #139 most populous county
15,051 residents across 5 ZIPs — #139 of 254 Texas counties.

Standout ZIPs in this County


Most Populous
Sweetwater · 12,532 people
83.3% of county total
Highest Income
Maryneal · $68,036 median
1.0× county average
Largest Land Area
Sweetwater · 379.4 sq mi
Spans the most ground
Fastest Growth
Roscoe · -3.1% (10-yr)
1,855 → 1,798 residents
Most Educated
Roscoe · 16.6% bachelor's+
195 of 1,172 adults 25+

Things worth knowing about Nolan County


15,051 residents live across 5 ZIPs covering 1,064 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 15,862 to 15,051 from 2014 to 2024 — a -5.1% change. 1 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 79535 (Maryneal, $68,036 median) and poorest ZIP 79556 (Sweetwater, $49,393) are 16.3 miles apart — a 1.4× income gap across local geography.

Median home values vary 1.3× across this county — from $94,900 in 79556 (Sweetwater) to $120,000 in 79535 (Maryneal).

Density varies 37× across the county — from 1 people/sq mi in 79535 (Maryneal) to 33 in 79556 (Sweetwater).

Educational attainment ranges from 15.3% bachelor's+ in 79556 (Sweetwater) to 29.4% in 79535 (Maryneal) — the breadth of educational profiles across the area.

Within Texas, this is the #139 most populous of 254 counties and ranks #126 for median household income .

Weighted by population, the typical household earns about $51,333 across the county — reflecting what a typical resident sees, not a simple ZIP average.

16.2% of adults age 25+ hold a bachelor's degree or higher (1,605 of 9,920 reporting).

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

Stories about Nolan 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
1,064
square miles
Avg density
14.1
people per sq mi
Population
15,051
across 5 ZIPs
Sweetwater
379.4 sq mi
12,532 residents
Roscoe
268.6 sq mi
1,798 residents
Blackwell
219.5 sq mi
538 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.

Sweetwater

Population decline

Nolan County lost 5.1% of residents between 2014 and 2024. ZIPs that shed the largest share:

Blackwell
-34.8%
825 → 538 residents

All ZIP Codes in Nolan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
79556SweetwaterStandard12,532$49,393379.4-3.8%
79545RoscoeStandard1,798$58,482268.6-3.1%
79506BlackwellStandard538$63,942219.5-34.8%
79535MarynealStandard129$68,036143.2138.9%
79537NolanStandard54$97,91753.0-45.5%

Adjacent & Nearby Counties