Custer County, SD — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
8,686
Male
4,297
49.5%
Female
4,389
50.5%
Median Age
57.2 yrs
Avg Household Size
2.1
Foreign Born
2.1%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher26.5%
High School or Higher52.0%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
12.9%
Disability
0.0%
Non-English Home
4.1%
Married
60.7%
Custer County, SD has a population of 8,686 according to 2023 Census Bureau estimates. The median age is 57.2 years. The largest racial or ethnic group is White at 90.9% of the population. 26.5% of residents hold a bachelor's degree or higher. 2.1% of residents are foreign-born.