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ZIP CODE TABULATION AREA

57621

South Dakota · 294 residents · 3.065 sq mi
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ZIP 57621 has notably lower household income than the US average, with a median household income of $32,589. Population has held roughly steady since 2024. 9% of adults hold a bachelor's degree or higher, below the national rate of 36%. At a median age of 19.7, residents skew younger than the country as a whole. The poverty rate of 67.0% is well above the national figure. Households here earn about 30% less than the Corson County median. Among the 10 ZIP codes in Corson County, 57621 ranks 8th by median household income.

$32,589
US average: $82,259
8.9%
US average: 35.6%
Age, sex & households
Under 18
43.9%
Age 65+
4.8%
49.7%
50.3%
5.16 people
Race & ethnicity · 2024
2024
White, non-Hispanic1%(3)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other99%(291)
Diversity Score2.5%(7)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Corson County
Income rank vs other ZIPs
LOWEST8TH OF 10HIGHEST
Adjacent ZIPs
57633$78,750
57634$88,125
57639$21,250
57641$83,750
Frequently asked

How many people live in ZIP code 57621?

ZIP code 57621 has about 294 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 57621?

The typical household in ZIP code 57621 earns about $32,589 a year. Half of households make more than that, and half make less.

Is ZIP code 57621 expensive?

In ZIP code 57621, the typical rent is about $592 a month.

How educated are people in ZIP code 57621?

About 8.9% of adults age 25 and over in ZIP code 57621 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 57621?

About 67.0% of people in ZIP code 57621 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024