RANKING · 2020 CENSUS · 19 SHOWN OF 19

Largest households, South Dakota cities · 2020

South Dakota cities ranked by average household size (2020 ACS). This list covers the 19 cities in South Dakota that qualify, ranked against each other statewide. The median across all 19 is 2.30.

South DakotaAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2010

01Tea, SDSD8,0193.42+14%

02Harrisburg, SDSD10,4053.10+17%

03Box Elder, SDSD13,9362.74−2%

04Madison, SDSD6,0652.73+24%

05Brandon, SDSD11,3062.65−5%

06Rapid Valley, SDSD6,9752.60−4%

07Rapid City, SDSD80,5892.40+4%

08Sioux Falls, SDSD213,7482.37−1%

09Belle Fourche, SDSD5,7912.34−4%

10Huron, SDSD14,6072.30+6%

11Brookings, SDSD25,3552.29−5%

12Aberdeen, SDSD27,9612.23+1%

13Watertown, SDSD23,7362.22−3%

14Sturgis, SDSD6,9222.17−2%

15Vermillion, SDSD11,7202.15+1%

16Spearfish, SDSD14,1542.11+10%

17Yankton, SDSD15,8162.11−1%

18Pierre, SDSD13,8482.08−7%

19Mitchell, SDSD15,7562.05−5%

SHOWING 1–19 OF 19

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS