Round Mountain is a town in Blanco County, Texas, United States. The population was 101 at the 2020 census.

Climate

The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Round Mountain has a humid subtropical climate, abbreviated "Cfa" on climate maps.

Demographics

2020 census

{| class="wikitable"

|+Round Mountain racial composition<br /> (NH = Non-Hispanic)

!Race

!Number

!Percentage

|-

|White (NH)

|69

|68.32%

|-

|Mixed/Multi-Racial (NH)

|4

|3.96%

|-

|Hispanic or Latino

|28

|27.72%

|-

|Total

|101

|

|}

As of the 2020 United States census, there were 101 people, 57 households, and 31 families residing in the town.

2000 census

As of the census