Pennington County Demographics

A map of Pennington County's Population by Race

Pennington County, South Dakota had a population of 109,222 in 2020. It was 75.8% White, 1.2% Black, 1.3% Asian, 5.1% Hispanic, 10.5% Native American/Other, and 6.1% Multiracial. This map presents the population of Pennington County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Pennington County is the 2nd most populous county of the 66 counties in South Dakota.

Pennington County's White Population

82,743 residents of Pennington County identify as White, or 75.8%. This makes the White share of the population of Pennington County roughly similar to the White share of the population of South Dakota (79.6% White). Of the 66 counties in South Dakota, Pennington County is ranked #53 in terms of White residents as a share of the population.

Pennington County is more White than neighboring Oglala Lakota County (3.2% White). Pennington County is less White than neighboring Meade County (84.7% White), Custer County (90.2% White), Lawrence County (89% White), and Fall River County (85.1% White).

Pennington County's Black Population

1,363 residents of Pennington County identify as Black, or 1.2%. This makes the Black share of the population of Pennington County roughly similar to the Black share of the population of South Dakota (2% Black). Of the 66 counties in South Dakota, Pennington County is ranked #9 in terms of Black residents as a share of the population.

Pennington County is more Black than neighboring Custer County (0.4% Black), Oglala Lakota County (0.2% Black), Lawrence County (0.5% Black), and Fall River County (0.5% Black). Pennington County is less Black than neighboring Meade County (1.4% Black).

Pennington County's Asian Population

1,463 residents of Pennington County identify as Asian, or 1.3%. This makes the Asian share of the population of Pennington County roughly similar to the Asian share of the population of South Dakota (1.5% Asian). Of the 66 counties in South Dakota, Pennington County is ranked #9 in terms of Asian residents as a share of the population.

Pennington County is more Asian than neighboring Meade County (0.9% Asian), Custer County (0.3% Asian), Oglala Lakota County (0.3% Asian), Lawrence County (0.8% Asian), and Fall River County (0.7% Asian).

Pennington County's Hispanic Population

5,575 residents of Pennington County identify as Hispanic, or 5.1%. This makes the Hispanic share of the population of Pennington County roughly similar to the Hispanic share of the population of South Dakota (4.4% Hispanic). Of the 66 counties in South Dakota, Pennington County is ranked #8 in terms of Hispanic residents as a share of the population.

Pennington County is more Hispanic than neighboring Meade County (4.4% Hispanic), Custer County (2.5% Hispanic), Oglala Lakota County (2.9% Hispanic), Lawrence County (3.6% Hispanic), and Fall River County (2.6% Hispanic).

Pennington County's Native American/Other Population

11,416 residents of Pennington County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 10.5%. This makes the Native American/Other share of the population of Pennington County roughly similar to the Native American/Other share of the population of South Dakota (8.7% Native American/Other). Of the 66 counties in South Dakota, Pennington County is ranked #17 in terms of Native American/Other residents as a share of the population.

Pennington County is more Native American/Other than neighboring Meade County (3.1% Native American/Other), Custer County (2.4% Native American/Other), Lawrence County (2.2% Native American/Other), and Fall River County (6.2% Native American/Other). Pennington County is less Native American/Other than neighboring Oglala Lakota County (91.7% Native American/Other).

Pennington County's Multiracial Population

6,662 residents of Pennington County identify as Multiracial, or 6.1%. This makes the Multiracial share of the population of Pennington County roughly similar to the Multiracial share of the population of South Dakota (3.9% Multiracial). Of the 66 counties in South Dakota, Pennington County is ranked #3 in terms of Multiracial residents as a share of the population.

Pennington County is more Multiracial than neighboring Meade County (5.5% Multiracial), Custer County (4.1% Multiracial), Oglala Lakota County (1.7% Multiracial), Lawrence County (4% Multiracial), and Fall River County (5% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.