Pennington County, South Dakota Population 2023

111,703

Pennington County, South Dakota's estimated 2023 population is 111,703 with a growth rate of 0.75% 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 100,948 and has seen a growth of 10.65% since that time.

Note: data after 2021 is projected based on recent change
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Pennington County, South Dakota Population 2023

Population by Race

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White

Native American

Two or more races

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 2023

Pennington County, South Dakota Median Age

38.8

Total

37.9

Male

40.2

Female

Pennington County, South Dakota Adults

There are 86,568 adults, (20,307 of whom are seniors) in Pennington County, South Dakota.

Pennington County, South Dakota Age Dependency

69.8

Age Dependency Ratio

30.6

Old Age Dependency Ratio

39.1

Child Dependency Ratio

Pennington County, South Dakota Sex Ratio

Female55,63049.45%
Male56,87450.55%

Pennington County, South Dakota Population by Age

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

3.07

Average Family Size

2.47

Average Household Size

68.9%

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 98.02%.

The highest rate of bachelors degrees is among asian people with a rate of 35.66%.

Pennington County, South Dakota Educational Attainment by Race

All

Male

Female

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$34,854

Average Earnings

$41,539

Average Male

$30,758

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

95.82% of Pennington County, South Dakota residents speak only English, while 4.18% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.43% of the population.

Pennington County, South Dakota Language

Pennington County, South Dakota Poverty by Race

rate

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16.89%

Overall Poverty Rate

12.14%

Male Poverty Rate

15.84%

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 77.99% below the poverty level.

The race least likely to be in poverty in Pennington County, South Dakota is Other, with 1.9% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.93%. Among those working part-time, it was 20.12%, and for those that did not work, the poverty rate was 21.46%.

Pennington County, South Dakota Poverty

rate

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Pennington County, South Dakota Poverty Rate by Education

rate

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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

47.6%

Overall Marriage Rate

48.0%

Male Marriage Rate

47.1%

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 Over 65, 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

10,482

Number of Veterans

9,586

Male Veterans

896

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

7.47%

Veteran Poverty Rate

29.6%

Veteran Disability Rate

Pennington County, South Dakota Veterans by Education

LaborForceParticipation

65.5%

Labor Force Participation

62%

Employment Rate

4.1%

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

59.13%

Born in Pennington County, South Dakota

100.45%

Native Born

2.56%

Foreign Born

1.28%

Non Citizen

1.28%

Naturalized

Place of Birth

100.45% of Pennington County, South Dakota residents were born in the United States, with 59.13% having been born in South Dakota. 1.28% 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