ZIP code 57233: Erwin, SD
57233 is a ZIP code in Erwin, South Dakota, mainly in Kingsbury County. About 350 people live here.
- Population
- 350
- Median household income
- $82,917
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- 15.4
- Homeowners
- 86%of occupied homes
Shaded: ZIP code 57233's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 57233 details
| City | Erwin |
|---|---|
| State | South Dakota |
| County | Kingsbury County |
| Metro area | Not in a metro or micro area |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 36.7 sq mi |
| Population density | 10 people per sq mi |
| Bachelor's degree or higher | 5.2% of adults 25+ |
| Average commute | 22 minutes |
| Center coordinates | 44.50992, -97.39932 |
ZIP codes near 57233
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 57221 | Bryant, SD | 7.1 mi | 1,158 |
| 57249 | Lake Preston, SD | 8.9 mi | 1,023 |
| 57214 | Badger, SD | 10.3 mi | 162 |
| 57248 | Lake Norden, SD | 11.6 mi | 1,295 |
| 57231 | De Smet, SD | 12.9 mi | 1,724 |
| 57241 | Hayti, SD | 15.7 mi | 936 |
| 57212 | Arlington, SD | 15.7 mi | 1,819 |
| 57278 | Willow Lake, SD | 16.9 mi | 1,011 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
About ZIP code 57233
What city is ZIP code 57233?
ZIP code 57233 is in Erwin, SD, in Kingsbury County.
What county is ZIP code 57233 in?
57233 is mainly in Kingsbury County, South Dakota.
What is the population of ZIP code 57233?
About 350 people live in ZIP code 57233, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 57233 in?
57233 is in Central Time (UTC−6). It observes daylight saving time.