Round Mountain is a town in Blanco County, Texas, home to about 81 people across 2.3 square miles. It has no ZIP code of its own: it’s part of 78663.
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| Nearest major airport | Austin Bergstrom International Airport (AUS)49 miles away |
|---|---|
| Nearest city of 250,000+ | Austin, TX42 miles away |
| Nearest city of 1 million+ | San Antonio, TX68 miles away |
Straight-line distances from the center of Round Mountain; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Round Mountain had 101 residents in the 2020 census, down 9% since 2000.
It’s the 1681st largest of 1,778 towns in Texas by population.
Blanco County grew from 4,703 residents in 1900 to 11,374 in 2020.
Blanco County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 97°F in summer, and winter lows average 35°F. About 33.2 inches of rain and melted snow fall in a typical year, with about 0 inches of snow.
Source: NOAA 1991–2020 climate normals, Johnson City 2n, TX weather station (10 miles away).
3,028 jobs at 417 businesses in Blanco County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.