ZIP CODE TABULATION AREA
57421
South Dakota · 75 residents · 33.3 sq mi
With 75 people, ZIP 57421 is a ZIP code in Marshall County. The median age is 16.6, younger than the US median of 38.9. This is an unusually credentialed place: 91% of adults have a four-year degree. 100% of homes are owner-occupied. There are 2 people per square mile. The foreign-born share is 0%.
Land area
33.3 sq mi
Age, sex & households
Race & ethnicity · 2024
2024
White, non-Hispanic100%(75)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
Housing
Commute & vehicles
44.4%
0.0%
0.0%
55.6%
0.0%
0.0%
Work & employment
People & community
0.0%
0.0%
0.0%
100.0%
100.0%
0.0%
Affordability & inequality
Frequently asked
How many people live in ZIP code 57421?
ZIP code 57421 has about 75 residents according to the 2024 American Community Survey.
How educated are people in ZIP code 57421?
About 90.9% of adults age 25 and over in ZIP code 57421 hold a bachelor's degree or higher.
What is the poverty rate in ZIP code 57421?
About 0.0% of people in ZIP code 57421 live below the federal poverty line.
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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024