ZIP codes
7
Day County, SD Demographics & ZIP Codes
Day County, South Dakota demographics and median household income by ZIP code — 7 ZIP codes — population 5,473 — avg. income $65,410 — avg. home value $143,414. Compare income, housing, and ZIP-level data on US5.
Population
5,473
Median household income (avg.)
$65,410
87% of U.S. median
Average home value
$143,414
41% of U.S. median
Average rent
$495
43% of U.S. median
Day County demographics
Day County, South Dakota covers 7 ZIP codes, with a combined ZIP-area population of about 5,473.
Median household income in Day County
The average median household income across ZIP codes in Day County, South Dakota is about $65,410 — about 10% below the SD ZIP average ($72,498), and about 13% below the U.S. median ($75,149).
Among ZIPs with income data, 57239 (Grenville) is near the top at about $89,896, while 57261 (Roslyn) is near the bottom at about $43,125.
Housing in Day County
For housing in Day County, South Dakota, the average median home value is about $143,414 and the average median rent is about $495.
The most populous ZIP is 57274 (Webster) with about 2,611 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Day County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 57274 | Webster | Day County | SD | 2,611 | $69,844 | $161,900 |
| 57273 | Waubay | Day County | SD | 1,226 | $48,750 | $155,800 |
| 57219 | Bristol | Day County | SD | 533 | $51,595 | $82,500 |
| 57239 | Grenville | Day County | SD | 380 | $89,896 | $290,600 |
| 57261 | Roslyn | Day County | SD | 297 | $43,125 | $114,300 |
| 57468 | Pierpont | Day County | SD | 273 | $68,750 | $103,800 |
| 57422 | Andover | Day County | SD | 153 | $85,909 | $95,000 |
Frequently asked questions
What are the demographics of Day County?
Day County, South Dakota has a combined ZIP-area population of about 5,473 across 7 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Day County?
The average median household income across ZIP codes in Day County, South Dakota is about $65,410, about 10% below the state ZIP average ($72,498), and about 13% below the U.S. median ($75,149). Average median home value is about $143,414. Among ZIPs with data, 57239 (Grenville) is near the top ($89,896) and 57261 (Roslyn) is near the bottom ($43,125).
How many ZIP codes are in Day County?
Day County, South Dakota includes 7 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Day County?
This page lists ZIP codes in Day County, South Dakota with population, median household income, and home value. Select a ZIP for a full demographics profile.