[6] According to the United States Census Bureau, the town has a total area of 2.1 square miles (5.4 km2), all land.

[7] As of the 2020 United States census, there were 789 people, 372 households, and 277 families residing in the town.

At the 2000 census, 1,021 people, 418 households, and 282 families were living in the town.

Stonewall County Airport is a public airport is located in Aspermont, 1 nautical mile (1.9 km) northeast of the central business district.

[12][13] The airport is owned by Stonewall County[12] and is used solely for general aviation purposes.