Pennington County, SD Population

Overview

108,707

Total Population

38.9

Median age

49.21%

Female population %

103.2:100

Gender ratio (M:F)

60-64 years

Largest age group

60.4

Total dependency ratio

White

Largest racial group

6,087

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Pennington County's population is old compared to the rest of the country:

The median age in Pennington County is 38.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Pennington County's population under 18 was 23.20%, compared to the 22.51% nationwide.
Pennington County's elderly or the senior population (over 65 age) was 18.24% as compared to 16.04% nationwide.
Of the total population in Pennington County, 19.43% were under the age of 15, 18.44% aged 15 to 29, 43.89% aged 30 to 64, 16.24% aged 65 to 84, and 2.00% were 85 years of age and older.

There are 1,711 less females than males in Pennington County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.21% females and 50.79% males in Pennington County, SD.
The Pennington County, SD gender ratio is 103.2:100 i.e. 103.2 men to 100 women (1.032).
For male population, the largest age group is 60-64 years with a population of 4,189.
For the female population, the largest age group is 60-64 years with a population of 4,135.

Pennington County's population has become increasingly diverse:

Racial distribution of Pennington County population: 80.64% are White, 1.25% are Black or African American, 8.58% are American Indian and Alaska Native, 1.24% are Asian, 0.11% are Native Hawaiian and other Pacific Islander, 1.03% are some other race and 7.15% are multiracial.
Pennington County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 6,087 is Hispanic or Latino (of any race), and 102,62 (94.40% of the total population) is Non-Hispanic.
The largest racial group in Pennington County is White with a population of 87,663 (80.64% of the total population).

Pennington County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 114,461 in the year 2022
From 2000 to 2010, Pennington County's population increased by 12,334 (13.87%), as compared to the national growth of 9.63%.
From 2010 to 2020, Pennington County's population increased by 8,310 (8.21%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Pennington County's population was lowest in year 2000 at 88,919.