In 2020, Pennington County, SD had a population of 113k people with a median age of 38.6 and a median household income of $58,278. Between 2019 and 2020 the population of Pennington County, SD grew from 110,685 to 112,504, a 1.64% increase and its median household income grew from $57,039 to $58,278, a 2.17% increase.
The 5 largest ethnic groups in Pennington County, SD are White (Non-Hispanic) (79.4%), American Indian & Alaska Native (Non-Hispanic) (7.62%), Two+ (Non-Hispanic) (4.56%), White (Hispanic) (2.64%), and Two+ (Hispanic) (1.56%).
None of the households in Pennington County, SD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
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 (544 degrees awarded in 2021), South Dakota School of Mines and Technology (514 degrees), and Western Dakota Technical College (424 degrees).
In 2020, the median property value in Pennington County, SD was $197,200, and the homeownership rate was 68.9%.
Most people in Pennington County, SD drove alone to work, and the average commute time was 18.8 minutes. The average car ownership in Pennington County, SD was 2 cars per household.