Round Mountain is a town in Blanco County, Texas, United States. The population was 181 at the 2010 census.
Location of Round Mountain, Texas
|Coordinates: 30°26′11″N 98°21′15″W|
Round Mountain is located in northern Blanco County at (30.436308, -98.354130), alongU.S. Route 281. It is 12 miles (19 km) north of Johnson City, the county seat, and 11 miles (18 km) south of Marble Falls. Downtown Austin is 46 miles (74 km) to the east.
According to the United States Census Bureau, the town of Round Mountain has a total area of 2.3 square miles (6.0 km2), all of it land.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to theKöppen Climate Classification system, Round Mountain has a humid subtropical climate, abbreviated "Cfa" on climate maps.