| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 325 / 512 / 737 / 830 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:58 PM |
| Population: | 26,211 [See All] |
| FIPS: | 48299 |
| Land Area: | 966 sq mi |
| Water Area: | 33 sq mi |
| Coordinates: | 30.7546, -98.5956 |
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26,211 residents live across 8 ZIPs covering 966 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 22,363 to 26,211 from 2014 to 2024 — a +17.2% change. 6 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 78657 (Horseshoe Bay, $91,452 median) and poorest ZIP 78672 (Tow, $52,813) are 26.7 miles apart — a 1.7× income gap across local geography.
Median home values vary 3.7× across this county — from $212,500 in 78672 (Tow) to $787,200 in 76885 (Valley Spring).
Density varies 75× across the county — from 3 people/sq mi in 76885 (Valley Spring) to 193 in 78639 (Kingsland).
Educational attainment ranges from 17.3% bachelor's+ in 78672 (Tow) to 49.6% in 76885 (Valley Spring) — the breadth of educational profiles across the area.
Within Texas, this is the #99 most populous of 254 counties and ranks #141 for median household income with the #35 fastest decade growth .
Weighted by population, the typical household earns about $70,850 across the county — reflecting what a typical resident sees, not a simple ZIP average.
32.4% of adults age 25+ hold a bachelor's degree or higher (6,641 of 20,513 reporting).
8 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
Llano County grew 17.2% over the past decade — concentrated in 2 high-growth ZIPs:
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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 78639 | Kingsland | Standard | 8,719 | $57,742 | 45.3 | 10.9% |
| 78657 | Horseshoe Bay | Standard | 7,591 | $91,452 | 42.0 | 27.7% |
| 78643 | Llano | Standard | 7,088 | $68,365 | 715.9 | 17.8% |
| 78609 | Buchanan Dam | Standard | 1,983 | $64,418 | 39.6 | 40.5% |
| 78672 | Tow | Standard | 570 | $52,813 | 40.9 | -30.0% |
| 76885 | Valley Spring | Standard | 142 | — | 55.2 | 0.7% |
| 78607 | Bluffton | Standard | 118 | $58,594 | 20.7 | 28.3% |
| 76831 | Castell | Standard | 0 | — | 6.4 | -100.0% |