| ZIP Code | 57233 |
|---|---|
| City | Erwin |
| State | South Dakota (SD) |
| County | Kingsbury County |
| Area Code | 605 |
| Elevation | 1,804 ft |
| Latitude | 44.509922 |
|---|---|
| Longitude | -97.399324 |
| Timezone | Chicago (DST) |
| FIPS | 46077 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 19.7 yrs ↓ 68% since 2019 |
|---|---|
| Avg Household Size | 4.90 |
| Below Poverty | 1.3% ▼ 88% below avg |
| College Grads | 19.6% ▼ 49% below avg |
| Unemployment | 0.0% ▼ 100% below avg |
| HS Graduate | 50 (54.3%) |
| Some College | 12 (13%) |
| Associates | 12 (13%) |
| Bachelors | 7 (7.6%) |
| Graduate Degree | 11 (12%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $89,375 ▲ 17% above avg ↑ 66% since 2019 |
|---|---|
| Median Home Value | $280,000 ≈ Avg |
| Home/Income Ratio | 3.1x (nat avg ~3.5x) |
| Total Units | 66 |
| Vacant Units | 17 |
| Avg HH Size | 4.90 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 66 |
|---|---|
| Vacant | 17 |
| Owner Occupied | 81.6% |
| Renter Occupied | 18.4% |
| Avg HH Size | 4.90 |
ZIP code 57233 is located in Erwin, South Dakota, within Kingsbury County. With a population of 240, this is a sparsely populated ZIP code with a young community — the median age is 19.7 years. Economically, 57233 is a middle-income ZIP code: the median household income of $89,375 is above the national average.
Real estate in ZIP code 57233 represents a mid-range housing market. The median home value of $280,000 is near the national average. Homeownership is strong here — 81.6% of occupied units are owner-occupied, suggesting an established, stable residential community.
The population of 57233 is primarily White (100.00%). Residents are less-educated — 19.6% hold a bachelor's degree or higher, which is below the national average. Poverty affects a relatively small share of residents at 1.3%. Household income has grown by 66% since 2019.
About 12% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 86%.
Overall, ZIP code 57233 in Erwin, SD is characterized as middle-income, less-educated, a young community, and predominantly owner-occupied. With 240 residents, a median household income of $89,375, and a median home value of $280,000, it offers a clear picture of life in this part of South Dakota.