| ZIP Code | 57646 |
|---|---|
| City | Mound City |
| State | South Dakota (SD) |
| County | Campbell County |
| Area Code | 605 |
| Elevation | 1,744 ft |
| Latitude | 45.680479 |
|---|---|
| Longitude | -100.05824 |
| Timezone | Chicago (DST) |
| FIPS | 46021 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 37.6 yrs ↓ 10% since 2019 |
|---|---|
| Avg Household Size | 2.34 |
| Below Poverty | 14.5% ▲ 45% above avg |
| College Grads | 60.7% ▲ 57% above avg |
| Unemployment | 0.0% ▼ 100% below avg |
| HS Graduate | 32 (20.6%) |
| Some College | 10 (6.5%) |
| Associates | 19 (12.3%) |
| Bachelors | 25 (16.1%) |
| Graduate Degree | 69 (44.5%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median Home Value | $101,400 ▼ 64% below avg ↑ 93% since 2019 |
|---|---|
| Total Units | 144 |
| Vacant Units | 38 |
| Avg HH Size | 2.34 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 144 |
|---|---|
| Vacant | 38 |
| Owner Occupied | 85.9% |
| Renter Occupied | 14.2% |
| Avg HH Size | 2.34 |
ZIP code 57646 is located in Mound City, South Dakota, within Campbell County. With a population of 248, this is a sparsely populated ZIP code with a relatively young community — the median age is 37.6 years.
Real estate in ZIP code 57646 represents one of the more affordable housing markets in the country. The median home value of $101,400 is well below the national average. Homeownership is strong here — 85.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 93% since 2019.
The population of 57646 is primarily White (80.65%). Residents are highly educated — 60.7% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects some residents at 14.5%.
A notably high share of workers — 48% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 49%.
Overall, ZIP code 57646 in Mound City, SD is characterized as highly educated, a relatively young community, and predominantly owner-occupied.