| ZIP Codes: | 4 ZIP Codes (3 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 325 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:59 PM |
| Population: | 4,147 [See All] |
| FIPS: | 48333 |
| Land Area: | 683 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 31.5041, -98.5200 |
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4,147 residents live across 4 ZIPs covering 683 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 4,669 to 4,147 from 2014 to 2024 — a -11.2% change. 1 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 76844 (Goldthwaite, $68,032 median) and poorest ZIP 76864 (Mullin, $55,598) are 15.4 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.4× across this county — from $165,600 in 76870 (Priddy) to $223,800 in 76844 (Goldthwaite).
Density varies 3× across the county — from 3 people/sq mi in 76864 (Mullin) to 8 in 76844 (Goldthwaite).
Educational attainment ranges from 25.9% bachelor's+ in 76864 (Mullin) to 31.7% in 76870 (Priddy) — the breadth of educational profiles across the area.
Within Texas, this is the #205 most populous of 254 counties and ranks #159 for median household income .
Weighted by population, the typical household earns about $65,621 across the county — reflecting what a typical resident sees, not a simple ZIP average.
27.3% of adults age 25+ hold a bachelor's degree or higher (818 of 2,998 reporting).
3 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Mills County lost 11.2% of residents between 2014 and 2024. ZIPs that shed the largest share: