RANKING · 2024 ACS · 19 SHOWN OF 19

Youngest by median age, South Dakota cities

South Dakota cities with the youngest median age (2024 ACS). This list covers the 19 cities in South Dakota that qualify, ranked against each other statewide.

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South DakotaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Vermillion, SDSD11,72023.1−3%

02Brookings, SDSD25,35524.7+5%

03Box Elder, SDSD13,93628.8+10%

04Tea, SDSD8,01930.6+9%

05Harrisburg, SDSD10,40531.1+3%

06Sioux Falls, SDSD213,74835.5+8%

07Huron, SDSD14,60736.1−10%

08Aberdeen, SDSD27,96136.4−0%

09Brandon, SDSD11,30636.7+17%

10Belle Fourche, SDSD5,79138.3+1%

11Rapid City, SDSD80,58939.1+12%

12Pierre, SDSD13,84839.4+5%

13Watertown, SDSD23,73639.5+13%

14Mitchell, SDSD15,75639.6+11%

15Spearfish, SDSD14,15440.0+26%

16Madison, SDSD6,06540.1+21%

17Sturgis, SDSD6,92240.3+1%

18Yankton, SDSD15,81641.4+10%

19Rapid Valley, SDSD6,97543.2+42%

SHOWING 1–19 OF 19

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES