ZIP 57233 · Erwin, South Dakota
2026 Edition · 6 cards · data as of Oct 30, 2026
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Population
350 people call ZIP 57233 home.
350
people.
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year
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Building
Most of the housing here is older than 2000.
- 83% of all homes were built before 2000
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year
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Units needed
Closing the gap would add 0–1% to the 71 homes here.
0–1
is the estimated number of missing housing units, from the lowest to the highest of three estimates.
Range computed by the Almanac from 2023 jobs and household data, using three demand models: 1% of jobs located here, 1% of renter households, and a rate by town size applied to renters. The low end is the lowest of the three and the high end the highest. It is an estimate, not a count. Sources: Computed by the Almanac
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Home value
A median home costs 78% less than South Dakota's.
$57,300
median home value in ZIP 57233.
- $57,300 ZIP 57233
- $257,400 South Dakota
- $332,700 U.S.
Census ACS 5-year, 2010-2014. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year