| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 830 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:55:10 PM |
| Population: | 12,001 [See All] |
| FIPS: | 48031 |
| Land Area: | 724 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 30.2589, -98.4422 |
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12,001 residents live across 4 ZIPs covering 724 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 10,336 to 12,001 from 2014 to 2024 — a +16.1% change. 3 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 78663 (Round Mountain, $168,125 median) and poorest ZIP 78636 (Johnson City, $72,663) are 11.8 miles apart — a 2.3× income gap across local geography.
Median home values vary 1.5× across this county — from $356,800 in 78663 (Round Mountain) to $532,600 in 78636 (Johnson City).
Density varies 8× across the county — from 4 people/sq mi in 78663 (Round Mountain) to 30 in 78606 (Blanco).
Educational attainment ranges from 32.1% bachelor's+ in 78636 (Johnson City) to 57.7% in 78635 (Hye) — the breadth of educational profiles across the area.
Within Texas, this is the #152 most populous of 254 counties and ranks #9 for median household income with the #37 fastest decade growth .
Weighted by population, the typical household earns about $90,347 across the county — reflecting what a typical resident sees, not a simple ZIP average.
35.3% of adults age 25+ hold a bachelor's degree or higher (3,289 of 9,322 reporting).
4 Standard delivery, 0 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.