11 ZIP Code Tabulation Areas in Day County, South Dakota. The population-weighted median household income is about $70,323, the median home value about $188,001, and 78.5% of occupied homes are owner-occupied.
- 11
- ZIP codes
- 7.7K
- Population
- 53
- Data points
Day County at a glance
- $70,323
- Median household income
- $188,001
- Median home value
- 45.4
- Median age
- 78.5%
- Owner-occupied
- 4,374
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 Day County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 57239 | Grenville | 358 | 88.7% | $106,389 |
| 2 | 57422 | Andover | 174 | 78% | $88,125 |
| 3 | 57235 | Florence | 774 | 93.5% | $83,462 |
| 4 | 57454 | Langford | 732 | 85.2% | $81,250 |
| 5 | 57261 | Roslyn | 277 | 61.3% | $77,813 |
Top 5 Day County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 57274 | Grenville | 2,621 | 74.5% | $68,083 |
| 2 | 57273 | Enemy Swim | 1,165 | 74% | $48,167 |
| 3 | 57235 | Florence | 774 | 93.5% | $83,462 |
| 4 | 57454 | Langford | 732 | 85.2% | $81,250 |
| 5 | 57219 | Bristol | 552 | 61% | $51,900 |
Top 5 Day County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 57274 | Grenville | 2,621 | 74.5% | $68,083 | $60M |
| 2 | 57235 | Florence | 774 | 93.5% | $83,462 | $23M |
| 3 | 57239 | Grenville | 358 | 88.7% | $106,389 | $17.6M |
| 4 | 57454 | Langford | 732 | 85.2% | $81,250 | $16.3M |
| 5 | 57273 | Enemy Swim | 1,165 | 74% | $48,167 | $15.3M |
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: 57239 (Grenville) at 8 people/sq mi. Least dense: 57422 (Andover) at 2 people/sq mi.
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