ZIP Code 78663
Round Mountain · Blanco, Texas
78663 is the ZIP code of Round Mountain in Blanco, Texas, United States.
- ZIP Code
- 78663
- County
- Blanco
- State
- Texas
- Country
- United States
Place with ZIP code 78663
| Place | County | Location |
|---|---|---|
| Round Mountain | Blanco | 30.443, -98.436 |
Near Austin
The nearest major city is Austin, about 69 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 78663?
Round Mountain.
Which county and state is 78663 in?
Blanco, Texas, United States.
What is the nearest major city to 78663?
Austin, about 69 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.