| ZIP Code | 57239 |
|---|---|
| City | Grenville |
| State | South Dakota (SD) |
| County | Day County |
| Area Code | 605 |
| Elevation | 1,903 ft |
| Latitude | 45.510884 |
|---|---|
| Longitude | -97.31312 |
| Timezone | Chicago (DST) |
| FIPS | 46037 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 63.4 yrs ↑ 23% since 2019 |
|---|---|
| Avg Household Size | 2.05 |
| Below Poverty | 8.7% ▼ 13% below avg |
| College Grads | 49.2% ▲ 27% above avg |
| Unemployment | 0.0% ▼ 100% below avg |
| HS Graduate | 114 (38.4%) |
| Some College | 27 (9.1%) |
| Associates | 10 (3.4%) |
| Bachelors | 46 (15.5%) |
| Graduate Degree | 100 (33.7%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $89,896 ▲ 18% above avg ↑ 89% since 2019 |
|---|---|
| Median Home Value | $290,600 ≈ Avg ↑ 47% since 2019 |
| Home/Income Ratio | 3.2x (nat avg ~3.5x) |
| Total Units | 465 |
| Vacant Units | 280 |
| Avg HH Size | 2.05 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 465 |
|---|---|
| Vacant | 280 |
| Owner Occupied | 90.8% |
| Renter Occupied | 9.2% |
| Avg HH Size | 2.05 |
ZIP code 57239 is located in Grenville, South Dakota, within Day County. With a population of 380, this is a sparsely populated ZIP code with an older community — the median age is 63.4 years. Economically, 57239 is a middle-income ZIP code: the median household income of $89,896 is above the national average.
Real estate in ZIP code 57239 represents a mid-range housing market. The median home value of $290,600 is near the national average. Homeownership is strong here — 90.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 47% since 2019.
The population of 57239 is primarily White (96.58%). Residents are well-educated — 49.2% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 8.7%. Household income has grown by 89% since 2019.
About 17% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 77%.
Overall, ZIP code 57239 in Grenville, SD is characterized as middle-income, well-educated, an older community, and predominantly owner-occupied. With 380 residents, a median household income of $89,896, and a median home value of $290,600, it offers a clear picture of life in this part of South Dakota.