Pennington County, South Dakota Population 2024

119,675

Pennington County, South Dakota's estimated 2024 population is 119,675 with a growth rate of 2.23% in the past year according to the most recent United States census data. Pennington County, South Dakota is the 2nd largest county in South Dakota. The 2010 population was 101,253 and has seen a growth of 18.19% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029132,7102,6072%
2028130,1032,6072.04%
2027127,4962,6072.09%
2026124,8892,6072.13%
2025122,2822,6072.18%
2024119,6752,6072.23%
2023117,0682,6072.28%
2022114,4612,6072.33%
2021111,8542,2912.09%
2020109,563-4,844-4.23%
2019114,4072,1471.91%
2018112,2601,5741.42%
2017110,6861,4461.32%
2016109,2401,0280.95%
2015108,2125990.56%
2014107,6131,6101.52%
2013106,0031,7121.64%
2012104,2911,8481.8%
2011102,4431,1901.18%
2010101,25300%
199081,34310,98215.61%
198070,36111,01218.55%
197059,3491,1541.98%
196058,19524,14270.9%
195034,05310,25443.09%
194023,7993,72018.53%
193020,0797,35957.85%
192012,7202672.14%
191012,4536,843121.98%
19005,610-930-14.22%
18906,5404,296191.44%
18802,244-130,466-98.31%
showing: 32 rows
2024 Growth Rate
2.23% (2,607)
County Website
Pennington County
County Seat
2020 Population
109,563
Area
2777 mi²
Density
43 people/mi²
Growth Since 2020
9.23% (10,112)
Founded
1877

Pennington County, South Dakota Population 2024

Population by Race

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Race
Population
Percentage (of total)
White88,98380.61%
Two or more races9,3648.48%
Native American8,2837.5%
Black or African American1,4781.34%
Asian1,2041.09%
Other race1,0400.94%
Native Hawaiian or Pacific Islander340.03%

White

Two or more races

Native American

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Pennington County, South Dakota Population by Race

Pennington County, South Dakota Population Pyramid 2024

Pennington County, South Dakota Median Age

39.6

Total

38.4

Male

40.9

Female

Pennington County, South Dakota Adults

There are 85,763 adults, (21,126 of whom are seniors) in Pennington County, South Dakota.

Pennington County, South Dakota Age Dependency

70.8

Age Dependency Ratio

32.7

Old Age Dependency Ratio

38.1

Child Dependency Ratio

Pennington County, South Dakota Sex Ratio

Female53,98848.91%
Male56,39851.09%

Pennington County, South Dakota Population by Age

Pennington County, South Dakota Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All44,8292.3869.230.8
Married20,853387.712.3
Non Family18,1081.3152.547.5
Female4,0293.4748.651.4
Male1,8393.5569.130.9

3.01

Average Family Size

2.38

Average Household Size

69.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Pennington County, South Dakota Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Pennington County, South Dakota Educational Attainment by Sex (over 25)

Pennington County, South Dakota Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 51.58%.

Pennington County, South Dakota Educational Attainment by Race

All

Male

Female

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$42,098

Average Earnings

$49,023

Average Male

$36,904

Average Female

Pennington County, South Dakota Earnings by Educational Attainment

Pennington County, South Dakota Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Pennington County, South Dakota Language

95.97% of Pennington County, South Dakota residents speak only English, while 4.03% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.31% of the population.

Pennington County, South Dakota Language

Pennington County, South Dakota Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White84,4567,4088.77%
Native7,5493,60247.71%
Multiple9,1221,41915.56%
Hispanic5,9981,24720.79%
Black1,38235625.76%
Other1,04011711.25%
Asian1,176988.33%

12.27%

Overall Poverty Rate

10.23%

Male Poverty Rate

14.37%

Female Poverty Rate

Poverty in Pennington County, South Dakota

The race most likely to be in poverty in Pennington County, South Dakota is Native, with 47.71% below the poverty level.

The race least likely to be in poverty in Pennington County, South Dakota is Asian, with 8.33% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.22%. Among those working part-time, it was 15.59%, and for those that did not work, the poverty rate was 20.99%.

Pennington County, South Dakota Poverty

rate

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Rate
Poverty
Less Than 9th Grade26.66%
High School15.31%
Some College9.54%
Bachelors or Greater3.32%

Pennington County, South Dakota Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed37.85%
Male Unemployed18.64%
Female Employed6.24%
Male Employed5.49%

Pennington County, South Dakota Poverty Rate by Employment Status and Sex

Pennington County, South Dakota Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Pennington County, South Dakota Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

48.9%

Overall Marriage Rate

49.2%

Male Marriage Rate

48.5%

Female Marriage Rate

Pennington County, South Dakota Married by Age and Sex

male

female

Pennington County, South Dakota Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Pennington County, South Dakota Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Pennington County, South Dakota Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

10,381

Number of Veterans

9,442

Male Veterans

939

Female Veterans

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Pennington County, South Dakota Veterans by War

count

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Pennington County, South Dakota Veterans by Age

count

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Pennington County, South Dakota Veterans by Race

Pennington County, South Dakota Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.75%

Veteran Poverty Rate

28.09%

Veteran Disability Rate

Pennington County, South Dakota Veterans by Education

LaborForceParticipation

64.9%

Labor Force Participation

61.4%

Employment Rate

3.5%

Unemployment Rate

Pennington County, South Dakota Employment by Age

LaborForceParticipation

Pennington County, South Dakota Employment by Race

LaborForceParticipation

Pennington County, South Dakota Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

56.08%

Born in Pennington County, South Dakota

97.78%

Native Born

2.22%

Foreign Born

0.87%

Non Citizen

1.35%

Naturalized

Place of Birth

97.78% of Pennington County, South Dakota residents were born in the United States, with 56.08% having been born in South Dakota. 0.87% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Pennington County, South Dakota Place of Birth

Sources