ZIP Code 76831
Castell · Llano, Texas
76831 is the ZIP code of Castell in Llano, Texas, United States.
- ZIP Code
- 76831
- County
- Llano
- State
- Texas
- Country
- United States
Place with ZIP code 76831
| Place | County | Location |
|---|---|---|
| Castell | Llano | 30.701, -98.956 |
Near Austin
The nearest major city is Austin, about 126 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 76831?
Castell.
Which county and state is 76831 in?
Llano, Texas, United States.
What is the nearest major city to 76831?
Austin, about 126 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.