Demographics in Keystone, SD

Population, age, race, ethnicity, and household statistics — 2023 ACS Data

Where is Keystone?

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Population

Source: U.S. Census Bureau ACS (2023)

Total Population

404

Male

222

55.0%

Female

182

45.0%

Median Age

37.0

Race & Ethnicity

Source: U.S. Census Bureau ACS (2023)

White

89.1%

Hispanic

16.3%

Asian

0.5%

Two or More

7.4%

Other

0.7%

Education & Household

Source: U.S. Census Bureau ACS (2023)

Bachelor's or Higher

11.1%

High School or Higher

43.1%

Foreign Born

6.4%

Veterans

7.7%

Married

44.5%

Avg Household Size

2.9

Marital Status by Age

Source: U.S. Census Bureau ACS (2023)

Keystone, SD has a population of 404 with a median age of 37.0. The racial makeup is 89.1% White, 16.3% Hispanic, 0.0% Black. About 11.1% of residents hold a bachelor's degree or higher. The foreign-born population is 6.4%.