Interpretation of Demographics Data
Demographic Data Report for South Dakota by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
South Dakota
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 28.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 258,341.
- Rank within US : This county is ranked 35 of 52
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 29.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 98,945,767.
- Rank within US : N/A
Custer County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 16.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,461.
- Rank within US : This county is ranked 3111 of 3143
Jerauld County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 17.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 303.
- Rank within US : This county is ranked 3097 of 3143
Hyde County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 17.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 213.
- Rank within US : This county is ranked 3072 of 3143
Fall River County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 18.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,360.
- Rank within US : This county is ranked 3034 of 3143
Campbell County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 304.
- Rank within US : This county is ranked 3018 of 3143
McPherson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 422.
- Rank within US : This county is ranked 2987 of 3143
Miner County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 452.
- Rank within US : This county is ranked 2987 of 3143
Clark County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 19.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 781.
- Rank within US : This county is ranked 2975 of 3143
Sully County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 309.
- Rank within US : This county is ranked 2951 of 3143
Day County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,102.
- Rank within US : This county is ranked 2939 of 3143
Gregory County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 821.
- Rank within US : This county is ranked 2927 of 3143
Jones County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 206.
- Rank within US : This county is ranked 2913 of 3143
Potter County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 489.
- Rank within US : This county is ranked 2913 of 3143
Haakon County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 354.
- Rank within US : This county is ranked 2901 of 3143
Harding County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 20.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 240.
- Rank within US : This county is ranked 2871 of 3143
Hutchinson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,557.
- Rank within US : This county is ranked 2860 of 3143
Edmunds County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 873.
- Rank within US : This county is ranked 2769 of 3143
Kingsbury County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,144.
- Rank within US : This county is ranked 2742 of 3143
Faulk County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 21.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 466.
- Rank within US : This county is ranked 2723 of 3143
McCook County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 21.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,262.
- Rank within US : This county is ranked 2723 of 3143
Douglas County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 626.
- Rank within US : This county is ranked 2690 of 3143
Moody County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,415.
- Rank within US : This county is ranked 2690 of 3143
Aurora County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 597.
- Rank within US : This county is ranked 2590 of 3143
Deuel County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 979.
- Rank within US : This county is ranked 2590 of 3143
Tripp County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,269.
- Rank within US : This county is ranked 2590 of 3143
Grant County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,722.
- Rank within US : This county is ranked 2538 of 3143
Charles Mix County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,122.
- Rank within US : This county is ranked 2508 of 3143
Marshall County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 996.
- Rank within US : This county is ranked 2508 of 3143
Stanley County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 22.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 691.
- Rank within US : This county is ranked 2508 of 3143
Hand County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 723.
- Rank within US : This county is ranked 2479 of 3143
Spink County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,438.
- Rank within US : This county is ranked 2459 of 3143
Roberts County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,386.
- Rank within US : This county is ranked 2400 of 3143
Turner County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 23.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,068.
- Rank within US : This county is ranked 2400 of 3143
Perkins County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 713.
- Rank within US : This county is ranked 2253 of 3143
Hanson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 830.
- Rank within US : This county is ranked 2221 of 3143
Sanborn County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 23.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 570.
- Rank within US : This county is ranked 2221 of 3143
Brule County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,277.
- Rank within US : This county is ranked 2138 of 3143
Walworth County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,280.
- Rank within US : This county is ranked 2109 of 3143
Yankton County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 24.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 5,744.
- Rank within US : This county is ranked 2046 of 3143
Union County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 24.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,197.
- Rank within US : This county is ranked 2016 of 3143
Butte County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,666.
- Rank within US : This county is ranked 1871 of 3143
Beadle County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,915.
- Rank within US : This county is ranked 1660 of 3143
Corson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 972.
- Rank within US : This county is ranked 1660 of 3143
Lyman County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 962.
- Rank within US : This county is ranked 1555 of 3143
Hamlin County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 25.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,650.
- Rank within US : This county is ranked 1522 of 3143
Lake County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,854.
- Rank within US : This county is ranked 1485 of 3143
Mellette County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 505.
- Rank within US : This county is ranked 1485 of 3143
Hughes County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,649.
- Rank within US : This county is ranked 1375 of 3143
Dewey County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 1,380.
- Rank within US : This county is ranked 1298 of 3143
Codington County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 26.7 percent.
- People (Age 18-39) : The number of people (age 18-39) is 7,677.
- Rank within US : This county is ranked 1232 of 3143
Davison County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.1 percent.
- People (Age 18-39) : The number of people (age 18-39) is 5,416.
- Rank within US : This county is ranked 1112 of 3143
Lawrence County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 27.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 7,564.
- Rank within US : This county is ranked 911 of 3143
Pennington County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 31,690.
- Rank within US : This county is ranked 884 of 3143
Bennett County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 28.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 937.
- Rank within US : This county is ranked 858 of 3143
Bon Homme County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 28.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,011.
- Rank within US : This county is ranked 761 of 3143
Jackson County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 28.6 percent.
- People (Age 18-39) : The number of people (age 18-39) is 801.
- Rank within US : This county is ranked 738 of 3143
Brown County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 11,112.
- Rank within US : This county is ranked 594 of 3143
Buffalo County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.3 percent.
- People (Age 18-39) : The number of people (age 18-39) is 530.
- Rank within US : This county is ranked 594 of 3143
Ziebach County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 699.
- Rank within US : This county is ranked 567 of 3143
Todd County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 29.5 percent.
- People (Age 18-39) : The number of people (age 18-39) is 2,725.
- Rank within US : This county is ranked 555 of 3143
Lincoln County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 29.9 percent.
- People (Age 18-39) : The number of people (age 18-39) is 21,121.
- Rank within US : This county is ranked 490 of 3143
Minnehaha County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.0 percent.
- People (Age 18-39) : The number of people (age 18-39) is 62,994.
- Rank within US : This county is ranked 374 of 3143
Meade County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.2 percent.
- People (Age 18-39) : The number of people (age 18-39) is 9,520.
- Rank within US : This county is ranked 357 of 3143
Oglala Lakota County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 33.4 percent.
- People (Age 18-39) : The number of people (age 18-39) is 4,510.
- Rank within US : This county is ranked 222 of 3143
Brookings County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 42.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 15,137.
- Rank within US : This county is ranked 34 of 3143
Clay County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 49.8 percent.
- People (Age 18-39) : The number of people (age 18-39) is 7,582.
- Rank within US : This county is ranked 10 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/23/2026 2:46 am.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 18-39, see the dictionary.
Data for United States does not include Puerto Rico.


