Pennington County, SD — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
112,081
Male
57,256
51.1%
Female
54,825
48.9%
Median Age
39.7 yrs
Avg Household Size
2.4
Foreign Born
2.2%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher23.6%
High School or Higher42.4%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
9.8%
Disability
0.0%
Non-English Home
3.7%
Married
41.1%
Pennington County, SD has a population of 112,081 according to 2023 Census Bureau estimates. The median age is 39.7 years. The largest racial or ethnic group is White at 80.3% of the population. 23.6% of residents hold a bachelor's degree or higher. 2.2% of residents are foreign-born.