Keystone, South Dakota Population 2024

242

Keystone is a city located in Pennington County South Dakota. Keystone has a 2024 population of 242. Keystone is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 242 in 2020.

The average household income in Keystone is $79,896 with a poverty rate of 13.25%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Keystone is 37.5 years, 37.6 years for males, and 37.5 years for females.

Keystone Demographics

According to the most recent ACS, the racial composition of Keystone was:

  • White: 87.01%
  • Two or more races: 9.87%
  • Native American: 2.08%
  • Asian: 0.52%
  • Other race: 0.52%
  • Black or African American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
2.9 sq mi
Density (mi²)
84.60/sq mi
The current population of Keystone, South Dakota is 242 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 242.

Keystone, South Dakota Population 2024

Population by Race

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Race
Population
Percentage (of total)
White33587.01%
Two or more races389.87%
Native American82.08%
Asian20.52%
Other race20.52%
Black or African American00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Native American

Asian

Other race

Black or African American

Native Hawaiian or Pacific Islander

Keystone Population by Race

Keystone Population Pyramid 2024

Keystone Median Age

37.5

Total

37.6

Male

37.5

Female

Keystone Adults

There are 286 adults, (52 of whom are seniors) in Keystone.

Keystone Age Dependency

64.5

Age Dependency Ratio

22.2

Old Age Dependency Ratio

42.3

Child Dependency Ratio

Keystone Sex Ratio

Female17545.45%
Male21054.55%

Keystone Population by Age

Keystone Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1382.7665.234.8
Married893.3677.522.5
Non Family371.4140.559.5
Female122.55050
Male0000

3.22

Average Family Size

2.76

Average Household Size

65.2%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Keystone 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

Keystone Educational Attainment by Sex (over 25)

Keystone Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among other race people with a rate of 100%.

Keystone Educational Attainment by Race

All

Male

Female

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$31,000

Average Earnings

$40,833

Average Male

$24,167

Average Female

Keystone Earnings by Educational Attainment

Keystone Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Keystone Language

79.61% of Keystone residents speak only English, while 20.39% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 18.99% of the population.

Keystone Language

Keystone Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White2674215.73%
Multiple38923.68%

13.25%

Overall Poverty Rate

16.67%

Male Poverty Rate

9.14%

Female Poverty Rate

Poverty in Keystone

The race most likely to be in poverty in Keystone is Multiple, with 23.68% below the poverty level.

The race least likely to be in poverty in Keystone is White, with 15.73% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.81%. Among those working part-time, it was 23.13%, and for those that did not work, the poverty rate was 11.76%.

Keystone Poverty

rate

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Rate
Poverty
Less Than 9th Grade14.29%
Some College14.29%
High School7.94%
Bachelors or Greater0%

Keystone Poverty Rate by Education

rate

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Rate
Poverty
Male Employed22.73%
Male Unemployed15.79%
Female Employed6.67%
Female Unemployed0%

Keystone Poverty Rate by Employment Status and Sex

Keystone Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Keystone Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

56.9%

Overall Marriage Rate

57.6%

Male Marriage Rate

56.0%

Female Marriage Rate

Keystone Married by Age and Sex

male

female

Keystone 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 Over 65.

Keystone Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Keystone Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

36

Number of Veterans

36

Male Veterans

0

Female Veterans

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Keystone Veterans by War

count

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Keystone Veterans by Age

count

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Keystone Veterans by Race

Keystone Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.33%

Veteran Poverty Rate

47.22%

Veteran Disability Rate

Keystone Veterans by Education

LaborForceParticipation

81%

Labor Force Participation

74.4%

Employment Rate

8.1%

Unemployment Rate

Keystone Employment by Age

LaborForceParticipation

Keystone Employment by Race

LaborForceParticipation

Keystone 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

57.14%

Born in Keystone

91.69%

Native Born

8.31%

Foreign Born

0%

Non Citizen

8.31%

Naturalized

Place of Birth

91.69% of Keystone residents were born in the United States, with 57.14% having been born in South Dakota. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Keystone Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202924200%
202824200%
202724200%
202624200%
202524200%
202424200%
202324200%
202224200%
202124200%
2020242-103-29.86%
201934541.17%
201834120.59%
2017339-1-0.29%
201634000%
2015340-1-0.29%
2014341-1-0.29%
201334220.59%
201234051.49%
201133510.3%
201033400%

Keystone Population by Year