In 2018, Pennington County, SD had a population of 109k people with a median age of 38.6 and a median household income of $55,024. Between 2017 and 2018 the population of Pennington County, SD grew from 108,126 to 109,294, a 1.08% increase and its median household income grew from $52,245 to $55,024, a 5.32% increase.
The 5 largest ethnic groups in Pennington County, SD are White (Non-Hispanic) (80.2%), American Indian & Alaska Native (Non-Hispanic) (7.96%), Two+ (Non-Hispanic) (4.24%), White (Hispanic) (2.62%), and Asian (Non-Hispanic) (1.31%). 0% of the households in Pennington County, SD speak a non-English language at home as their primary language, and 98.8% of the residents in Pennington County, SD are U.S. citizens.
The largest universities in Pennington County, SD are National American University-Rapid City (660 degrees awarded in 2019), South Dakota School of Mines and Technology (638 degrees), and Western Dakota Technical Institute (371 degrees).
In 2018, the median property value in Pennington County, SD was $179,900, and the homeownership rate was 68.8%. Most people in Pennington County, SD drove alone to work, and the average commute time was 16.7 minutes. The average car ownership in Pennington County, SD was 2 cars per household.