RANKING · 2000 CENSUS · 65 SHOWN OF 65
Most sparsely populated, South Dakota counties · 2000
South Dakota counties with the fewest residents per square mile (2000). This list covers the 65 counties in South Dakota that qualify, ranked against each other statewide. The median across all 65 is 5.
Flip the list · Most densely populated, US counties →Most sparsely populated by state
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RANKPLACESTATEPOPPOPULATION DENSITYVS 1990
SHOWING 1–65 OF 65
UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS