Pennington County, South Dakota Population 2024

117,500
020K40K60K80K100K120K18801900192019401960198020002020YearPopulation

Pennington County, South Dakota's estimated 2024 population is 117,500 with a growth rate of 1.38% 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 16.05% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029125,4851,5971.29%
2028123,8881,5971.31%
2027122,2911,5971.32%
2026120,6941,5971.34%
2025119,0971,5971.36%
2024117,5001,5971.38%
2023115,9031,5971.4%
2022114,3062,4202.16%
2021111,8862,3202.12%
2020109,566-4,841-4.23%
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%
18802,244-123,241-98.21%
2024 Growth Rate
1.38% (1,597)
County Website
Pennington County
2020 Population
109,566
Area
2777 mi²
Density
42 people/mi²
Growth Since 2020
7.24% (7,934)
Founded
1877

Population by Race

Race
Population
Percentage (of total)
White90,04080.33%
Two or more races10,1299.04%
Native American7,9057.05%
Black or African American1,4631.31%
Other race1,2881.15%
Asian1,2311.1%
Native Hawaiian or Pacific Islander250.02%
80.33%9.04%7.05%Race

White

Two or more races

Native American

Black or African American

Other race

Asian

Native Hawaiian or Pacific Islander

Pennington County, South Dakota Population by Race

Pennington County, South Dakota Population Pyramid 2024

010203040506070804.5K4K3.5K3K2.5K2K1.5K1K500005001K1.5K2K2.5K3K3.5K4K4.5KMaleFemale

Pennington County, South Dakota Median Age

39.7

Total

38.6

Male

40.8

Female

Pennington County, South Dakota Adults

There are 87,162 adults, (21,993 of whom are seniors) in Pennington County, South Dakota.

Pennington County, South Dakota Age Dependency

72

Age Dependency Ratio

33.7

Old Age Dependency Ratio

38.2

Child Dependency Ratio

Pennington County, South Dakota Sex Ratio

Female54,82548.92%
Male57,25651.08%

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
All45,6982.3769.130.9
Married21,3483.0387.212.8
Non Family18,5811.2853.246.8
Female3,6823.3850.849.2
Male2,0873.5257.342.7

3.02

Average Family Size

2.37

Average Household Size

69.1%

Rate of Home Ownership

46.72%8.06%40.66%Households by Type

Married

Male

Female

NonFamily

MarriedAllMaleNon FamilyFemale00.10.20.30.40.50.60.70.80.91

owner

renter

Pennington County, South Dakota Households and Families

Less Than 9th Grade9th to 12th GradeHigh School GraduateSome CollegeAssociates DegreeBachelors DegreeGraduate Degree02K4K6K8K10K12K

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade2,6023.35%
Associates Degree9,18811.82%
Bachelors Degree16,95121.8%
Graduate Degree9,52812.25%
High School Graduate21,04427.07%
Less Than 9th Grade1,5331.97%
Some College16,90721.74%
27.07%21.74%11.82%21.8%12.25%Over 25 Education

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

IslanderWhiteAsian2+ RacesBlackHispanicNative AmericanOther Race0%20%40%60%80%100%

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White65,55762,74223,676
2+ Races4,7224,4571,313
Native American3,9363,293364
Hispanic2,5222,242845
Other Race916684267
Asian906862436
Black846798155
Islander14140

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 48.12%.

Pennington County, South Dakota Educational Attainment by Race

OverallLess Than 9th GradeHigh School GraduateSome CollegeBachelors DegreeGraduate Degree$0$20,000$40,000$60,000$80,000$100,000

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$52,994$62,320$45,878
Graduate Degree$77,245$98,393$66,307
High School Graduate$35,486$37,280$30,064
Less Than 9th Grade$33,165$36,141$24,605
Overall$44,318$51,369$38,955
Some College$42,333$50,591$36,582

$44,318

Average Earnings

$51,369

Average Male

$38,955

Average Female

Pennington County, South Dakota Earnings by Educational Attainment

Pennington County, South Dakota Language by Age

96.33%Languages

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Pennington County, South Dakota Language

96.33% of Pennington County, South Dakota residents speak only English, while 3.67% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.1% of the population.

Pennington County, South Dakota Language

Pennington County, South Dakota Poverty by Race

NativeBlackHispanicMultipleOtherWhiteAsian0%5%10%15%20%25%30%35%40%45%50%

rate

Name
Total
In Poverty
Poverty Rate
White85,3887,4668.74%
Native7,1883,26245.38%
Multiple9,8921,65716.75%
Hispanic5,8511,12919.3%
Black1,36331122.82%
Other1,28815712.19%
Asian1,212978%

12.04%

Overall Poverty Rate

10.58%

Male Poverty Rate

13.54%

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 45.38% below the poverty level.

The race least likely to be in poverty in Pennington County, South Dakota is Asian, with 8% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.11%. Among those working part-time, it was 15.42%, and for those that did not work, the poverty rate was 19.96%.

Pennington County, South Dakota Poverty

Less Than 9th GradeHigh SchoolSome CollegeBachelors or Greater0%2%4%6%8%10%12%14%16%18%20%22%24%26%28%30%

rate

Rate
Poverty
Less Than 9th Grade29.97%
High School14.79%
Some College8.95%
Bachelors or Greater3.92%

Pennington County, South Dakota Poverty Rate by Education

Male EmployedMale UnemployedFemale EmployedFemale Unemployed0%5%10%15%20%25%30%35%

rate

Rate
Poverty
Female Unemployed30.7%
Male Unemployed22.14%
Female Employed6.44%
Male Employed5.3%

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

Pennington County, South Dakota Income by Household Type

Under10k10kTo15k15kTo25k25kTo35k35kTo50k50kTo75k75kTo100k100kTo150k150kTo200kOver200k0510152025

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$90,248$118,504
Households$70,768$95,438
Married Families$101,586$131,104
Non Families$41,119$58,887
HouseholdsFamiliesMarried FamiliesNon Families020,00040,00060,00080,000100,000120,000140,000

mean

median

Income by Household Type

Pennington County, South Dakota Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.1%

Overall Marriage Rate

49.1%

Male Marriage Rate

49.0%

Female Marriage Rate

Pennington County, South Dakota Married by Age and Sex

55-6435-4445-54Over 6520-3415-190102030405060

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 55-64.

Pennington County, South Dakota Marital Status by Race

HawaiianOtherRaceWhiteWhiteNonHispanicHispanicAsianBlackTwoOrMoreRacesIndian0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Pennington County, South Dakota Marital Status

29.93%31.16%35.55%Veterans by War

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

10,954

Number of Veterans

9,844

Male Veterans

1,110

Female Veterans

War
Veterans
Vietnam3,751
First Gulf War3,288
Second Gulf War3,158
Korea285
World War II70

Pennington County, South Dakota Veterans by War

18 to 3435 to 5455 to 6465 to 7475+02004006008001,0001,2001,4001,6001,8002,0002,2002,4002,6002,800

count

Age Group
Veterans
65 to 742,712
35 to 542,564
55 to 642,408
75+2,355
18 to 34915

Pennington County, South Dakota Veterans by Age

White2+ RacesHispanicNative AmericanBlackOther RaceAsian01,0002,0003,0004,0005,0006,0007,0008,0009,00010,000

count

Name
Veterans
% of Total
White9,69313.43%
2+ Races70011.94%
Hispanic47915.5%
Native American2274.63%
Black21021.92%
Other Race768.26%
Asian484.69%

Pennington County, South Dakota Veterans by Race

Pennington County, South Dakota Veterans by Education

22.73%42.05%33.24%Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.97%

Veteran Poverty Rate

27.65%

Veteran Disability Rate

Pennington County, South Dakota Veterans by Education

16 - 1920 - 2425 - 2930 - 3435 - 4445 - 5455 - 5960 - 6465 - 7475+0102030405060708090

LaborForceParticipation

64.5%

Labor Force Participation

60.9%

Employment Rate

3.3%

Unemployment Rate

Pennington County, South Dakota Employment by Age

IslanderAsianBlackWhiteWhite Non-Hispanic2+ RacesHispanicNative AmericanOther Race0102030405060708090100

LaborForceParticipation

Pennington County, South Dakota Employment by Race

Less Than High SchoolHigh School GraduateSome CollegeBachelors or Greater0102030405060708090

LaborForceParticipation

Pennington County, South Dakota Employment by Education

Origin of Non-Citizens

27.05%47.84%16.59%Origin

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

22.92%43.73%15.34%14.83%Origin

Europe

Asia

Africa

Oceania

Latin America

North America

55.71%

Born in Pennington County, South Dakota

97.77%

Native Born

2.23%

Foreign Born

0.83%

Non Citizen

1.4%

Naturalized

Place of Birth

97.77% of Pennington County, South Dakota residents were born in the United States, with 55.71% having been born in South Dakota. 0.83% 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