Keystone, South Dakota Population 2022

352
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Keystone is a city located in Pennington County South Dakota. Keystone has a 2020 population of 352. Keystone is currently growing at a rate of 0.86% annually and its population has increased by 5.39% since the most recent census, which recorded a population of 334 in 2010.

The average household income in Keystone is $71,349 with a poverty rate of 22.38%. The median rental costs in recent years comes to $581 per month, and the median house value is $128,100. The median age in Keystone is 34.9 years, 26.5 years for males, and 39.6 years for females.

Keystone Demographics

According to the most recent ACS, the racial composition of Keystonewas:

  • White: 92.27%
  • Two or more races: 3.04%
  • Asian: 2.34%
  • Native American: 1.87%
  • Native Hawaiian or Pacific Islander: 0.23%
  • Other race: 0.23%
  • Black or African American: 0.00%
The current population of Keystone, South Dakota is 352 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 352.The last official US Census in 2010 recorded the population at 334.

Keystone, South Dakota Population 2022

Population by Race

Race Population Percentage
White39492.27%
Two or More Races133.04%
Asian102.34%
American Indian and Alaska Native81.87%
Some Other Race10.23%
Native Hawaiian and Other Pacific Islander10.23%
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Keystone Population by Race

Keystone Population Pyramid $2022

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Keystone Median Age

34.9


Total

26.5


Male

39.6


Female

Keystone Adults

There are 337 adults, (51 of whom are seniors) in Keystone.

Keystone Age Dependency

Age Dependency Ratio

17.8

Old Age Dependency Ratio

31.5

Child Dependency Ratio

Keystone Sex Ratio

Female

185

43.33%

Male

242

56.67%

Keystone Population by Age

Keystone Renter vs Owner Occupied by Household Type

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Keystone Household Types

Type Owner Renter
Non Family21.2%78.8%
All49.3%50.7%
Male50%50%
Female61.5%38.5%
Married74.6%25.4%

49.3%

Rate of Home Ownership

Keystone Households and Families

Type Count Average Size Owned
All1502.6949.3
Married673.2474.6
Non Family662.1521.2
Female132.3861.5
Male43.2550

3.04

Average Family Size

2.69

Average Household Size

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Keystone Households by Type

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Education Attained Count Percentage
Less Than 9th Grade72.77%
9th to 12th Grade41.58%
High School Graduate10340.71%
Some College4818.97%
Associates Degree3614.23%
Bachelors Degree4718.58%
Graduate Degree83.16%
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Keystone Educational Attainment by Sex (over 25)

Keystone Educational Attainment by Race

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Race Total High School Bachelors
White22621654
Hispanic1616
Native American551
2+ Races44
Islander1
Other Race11

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 23.89%.

Keystone Educational Attainment by Race

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Name Average Male Female
Overall$19,896$20,000$19,688
Less Than 9th Grade$$$
High School Graduate$14,569$25,114$13,897
Some College$26,000$19,531$27,969
Bachelors Degree$$$
Graduate Degree$18,750$$

$19,896

Average Earnings

$20,000

Average Male

$19,688

Average Female

Keystone Earnings by Educational Attainment

Keystone Language by Age

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Keystone Language

83.37% of Keystone residents speak only English, while 16.63% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.08% of the population.

Keystone Language

Keystone Poverty by Race

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Name Total In Poverty Poverty Rate
White3235316.41%
Hispanic551425.45%
Asian1010100.00%
Multiple13969.23%
Native8675.00%
OtherNaN%

22.38%

Overall Poverty Rate

26.92%

Male Poverty Rate

16.38%

Female Poverty Rate

Poverty in Keystone

The race most likely to be in poverty in Keystone is Asian, with 100.00% below the poverty level.

The race least likely to be in poverty in Keystone is Hispanic, with 25.45% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.65%. Among those working part-time, it was 41.40%, and for those that did not work, the poverty rate was 25.00%.

Keystone Poverty

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Name Poverty
Less Than 9th Grade36.36%
High School14.56%
Some College8.33%
Bachelors or Greater1.82%

Keystone Poverty Rate by Education

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Rate Poverty
Male Unemployed40.00%
Male Employed30.82%
Female Employed15.05%
Female Unemployed0.00%

Keystone Poverty Rate by Employment Status and Sex

Keystone Income by Household Type

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Name Median Mean
Households$47,500$71,349
Families$59,167$72,014
Married Families$66,042-
Non Families$38,750$68,709
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Income by Household Type

Keystone Marital Status

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Marriage Rates

39.0%

Overall Marriage Rate

35.4%

Male Marriage Rate

43.6%

Female Marriage Rate

Keystone Married by Age and Sex

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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 35-44.

Keystone Marital Status by Race

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Keystone Marital Status

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57

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Vietnam22
First Gulf War20
Second Gulf War17
Korea3
World War II

Keystone Veterans by War

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Age Group Veterans
55 to 6424
65 to 7417
35 to 5411
75+5
18 to 34

Keystone Veterans by Age

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Name Veterans % of Total
White5618.24%
Islander1100.00%

Keystone Veterans by Race

Keystone Veterans by Education

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5.26%

Veteran Poverty Rate

10.53%

Veteran Disability Rate

Keystone Veterans by Education

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77.8%

Labor Force Participation

74.6%

Employment Rate

4.2%

Unemployment Rate

Keystone Employment by Age

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Keystone Employment by Race

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Keystone Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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46.84%

Born in Keystone

85.71%

Native Born

14.29%

Foreign Born

13.82%

Non Citizen

0.47%

Naturalized

Place of Birth

85.71% of Keystone residents were born in the United States, with 46.84% having been born in South Dakota. 13.82% 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: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
202235230.86%
202134930.87%
202034630.87%
201934330.88%
201834010.29%
20173390.00%
2016339-1-0.29%
2015340-1-0.29%
20143410.00%
201334110.29%
201234051.49%
201133510.30%
20103340.00%

Keystone Population by Year