10 ZIP Code Tabulation Areas in Dewey County, South Dakota. The population-weighted median household income is about $60,067, the median home value about $119,188, and 69% of occupied homes are owner-occupied.
- 10
- ZIP codes
- 11.2K
- Population
- 53
- Data points
Dewey County at a glance
- $60,067
- Median household income
- $119,188
- Median home value
- 36.3
- Median age
- 69%
- Owner-occupied
- 5,419
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 Dewey County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 57636 | Lantry | 104 | 80.5% | $112,375 |
| 2 | 57633 | Isabel | 445 | 76.5% | $78,750 |
| 3 | 57656 | Timber Lake | 1,000 | 71.4% | $66,094 |
| 4 | 57601 | Mobridge | 3,422 | 73.2% | $66,003 |
| 5 | 57442 | Gettysburg | 1,772 | 80.9% | $65,625 |
Top 5 Dewey County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 57625 | Eagle Butte | 3,775 | 54.9% | $43,235 |
| 2 | 57601 | Mobridge | 3,422 | 73.2% | $66,003 |
| 3 | 57442 | Gettysburg | 1,772 | 80.9% | $65,625 |
| 4 | 57656 | Timber Lake | 1,000 | 71.4% | $66,094 |
| 5 | 57633 | Isabel | 445 | 76.5% | $78,750 |
Top 5 Dewey County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 57601 | Mobridge | 3,422 | 73.2% | $66,003 | $79.7M |
| 2 | 57442 | Gettysburg | 1,772 | 80.9% | $65,625 | $43.7M |
| 3 | 57625 | Eagle Butte | 3,775 | 54.9% | $43,235 | $27.8M |
| 4 | 57656 | Timber Lake | 1,000 | 71.4% | $66,094 | $17.5M |
| 5 | 57633 | Isabel | 445 | 76.5% | $78,750 | $11M |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 57601 (Mobridge) at 8 people/sq mi. Least dense: 57652 (La Plant) at 1 people/sq mi.
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