ZIP Codes of Mason County, TX

Population & People
Population & People
Total Population
3,933
Household Income
Household Income
Median Income
$74,677
Housing
Housing
Total Housing Units
2,381
Business & Economy
Business & Economy
Total Businesses
157
Employment
Employment
Employment Rate
45.17%
Education
Education
Bachelor's Degree+
40.36%
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 Code:325
Timezone:Central (GMT -06:00)
Local Time:2:13:59 PM
Population:3,933 [See All]
FIPS:48319
Land Area:995 sq mi
Water Area:3 sq mi
Coordinates:30.8161, -99.1026
Quick Link:
https://www.zip-codes.com/county/tx-mason.asp
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Texas's #206 most populous county
3,933 residents across 4 ZIPs — #206 of 254 Texas counties.

Standout ZIPs in this County


Most Populous
Mason · 3,532 people
89.8% of county total
Highest Income
Mason · $74,677 median
1.0× county average
Largest Land Area
Mason · 755.2 sq mi
Spans the most ground
Fastest Growth
Mason · -3.4% (10-yr)
3,655 → 3,532 residents
Most Educated
Mason · 41.2% bachelor's+
1,075 of 2,607 adults 25+

Things worth knowing about Mason County


3,933 residents live across 4 ZIPs covering 995 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 3,995 to 3,933 from 2014 to 2024 — a -1.6% change. 1 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 76856 (Mason, $74,677 median) and poorest ZIP 76856 (Mason, $74,677) are 0.0 miles apart — a 1.0× income gap across local geography.

Density varies across the county — from 2 people/sq mi in 76842 (Fredonia) to 5 in 76856 (Mason).

Educational attainment ranges from 29.4% bachelor's+ in 76842 (Fredonia) to 43.4% in 76820 (Art) — the breadth of educational profiles across the area.

Within Texas, this is the #206 most populous of 254 counties and ranks #81 for median household income .

Weighted by population, the typical household earns about $74,677 across the county — reflecting what a typical resident sees, not a simple ZIP average.

40.4% of adults age 25+ hold a bachelor's degree or higher (1,187 of 2,941 reporting).

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

Stories about Mason 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
995
square miles
Avg density
4.0
people per sq mi
Population
3,933
across 4 ZIPs
Mason
755.2 sq mi
3,532 residents
Fredonia
121.1 sq mi
297 residents
Pontotoc
84.1 sq mi
no 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.

Mason

All ZIP Codes in Mason County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
76856MasonStandard3,532$74,677755.2-3.4%
76842FredoniaStandard297121.1194.1%
76820ArtStandard10434.8-23.5%
76869PontotocStandard084.1-100.0%

Adjacent & Nearby Counties