| ZIP Code | 57633 |
|---|---|
| City | Isabel |
| State | South Dakota (SD) |
| County | Dewey County |
| Area Code | 605 |
| Elevation | 1,962 ft |
| Latitude | 45.441592 |
|---|---|
| Longitude | -101.532383 |
| Timezone | Chicago (DST) |
| FIPS | 46041 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 38.4 yrs ↑ 2% since 2019 |
|---|---|
| Avg Household Size | 2.39 |
| Below Poverty | 4.0% ▼ 60% below avg |
| College Grads | 38.4% ≈ Avg |
| Unemployment | 3.5% ▼ 29% below avg |
| HS Graduate | 72 (28.2%) |
| Some College | 8 (3.1%) |
| Associates | 77 (30.2%) |
| Bachelors | 42 (16.5%) |
| Graduate Degree | 56 (22%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $88,750 ▲ 16% above avg ↑ 18% since 2019 |
|---|---|
| Median Home Value | $63,300 ▼ 77% below avg ↓ 10% since 2019 |
| Home/Income Ratio | 0.7x (nat avg ~3.5x) |
| Median Rent | $756/mo ↑ 31% since 2019 |
| Total Units | 200 |
| Vacant Units | 24 |
| Avg HH Size | 2.39 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 200 |
|---|---|
| Vacant | 24 |
| Owner Occupied | 77.3% |
| Renter Occupied | 22.7% |
| Avg HH Size | 2.39 |
ZIP code 57633 is located in Isabel, South Dakota, within Dewey County. With a population of 421, this is a sparsely populated ZIP code with a middle-aged community — the median age is 38.4 years. Economically, 57633 is a middle-income ZIP code: the median household income of $88,750 is above the national average.
Real estate in ZIP code 57633 represents one of the more affordable housing markets in the country. The median home value of $63,300 is well below the national average. Renters can expect to pay around $756 per month in median rent. Homeownership is strong here — 77.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have decreased by 10% since 2019.
The population of 57633 is primarily White (81.95%). Residents are moderately educated — 38.4% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 4.0%. Household income has grown by 18% since 2019.
The unemployment rate in 57633 stands at 3.5%, which is below the national average. About 25% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 70%.
Overall, ZIP code 57633 in Isabel, SD is characterized as middle-income, moderately educated, a middle-aged community, and predominantly owner-occupied. With 421 residents, a median household income of $88,750, and a median home value of $63,300, it offers a clear picture of life in this part of South Dakota.