ZIP codes
10
Grant County, SD Demographics & ZIP Codes
Grant County, South Dakota demographics and median household income by ZIP code — 10 ZIP codes — population 8,763 — avg. income $75,094 — avg. home value $175,350. Compare income, housing, and ZIP-level data on US5.
Population
8,763
Median household income (avg.)
$75,094
100% of U.S. median
Average home value
$175,350
50% of U.S. median
Average rent
$503
43% of U.S. median
Grant County demographics
Grant County, South Dakota covers 10 ZIP codes, with a combined ZIP-area population of about 8,763.
Median household income in Grant County
The average median household income across ZIP codes in Grant County, South Dakota is about $75,094 — about 4% above the SD ZIP average ($72,498), and about even with the U.S. median ($75,149).
Among ZIPs with income data, 57269 (Twin Brooks) is near the top at about $96,111, while 57259 (Revillo) is near the bottom at about $64,000.
Housing in Grant County
For housing in Grant County, South Dakota, the average median home value is about $175,350 and the average median rent is about $503.
The most populous ZIP is 57252 (Milbank) with about 4,882 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Grant County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 57252 | Milbank | Grant County | SD | 4,882 | $69,900 | $184,500 |
| 57216 | Big Stone City | Grant County | SD | 1,389 | $78,417 | $212,700 |
| 57266 | Summit | Grant County | SD | 628 | $64,444 | $159,400 |
| 57259 | Revillo | Grant County | SD | 586 | $64,000 | — |
| 57269 | Twin Brooks | Grant County | SD | 257 | $96,111 | $411,800 |
| 57265 | Strandburg | Grant County | SD | 255 | $75,625 | $122,500 |
| 57256 | Ortley | Grant County | SD | 226 | $66,250 | — |
| 57251 | Marvin | Grant County | SD | 224 | $78,125 | $115,600 |
| 57264 | Stockholm | Grant County | SD | 174 | $80,250 | $106,300 |
| 57246 | La Bolt | Grant County | SD | 142 | $77,813 | $90,000 |
Frequently asked questions
What are the demographics of Grant County?
Grant County, South Dakota has a combined ZIP-area population of about 8,763 across 10 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Grant County?
The average median household income across ZIP codes in Grant County, South Dakota is about $75,094, about 4% above the state ZIP average ($72,498), and near the U.S. median ($75,149). Average median home value is about $175,350. Among ZIPs with data, 57269 (Twin Brooks) is near the top ($96,111) and 57259 (Revillo) is near the bottom ($64,000).
How many ZIP codes are in Grant County?
Grant County, South Dakota includes 10 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Grant County?
This page lists ZIP codes in Grant County, South Dakota with population, median household income, and home value. Select a ZIP for a full demographics profile.