ZIP codes
7
Dewey County, SD Demographics & ZIP Codes
Dewey County, South Dakota demographics and median household income by ZIP code — 7 ZIP codes — population 8,867 — avg. income $77,523 — avg. home value $129,725. Compare income, housing, and ZIP-level data on US5.
Population
8,867
Median household income (avg.)
$77,523
103% of U.S. median
Average home value
$129,725
37% of U.S. median
Average rent
$364
31% of U.S. median
Dewey County demographics
Dewey County, South Dakota covers 7 ZIP codes, with a combined ZIP-area population of about 8,867.
Median household income in Dewey County
The average median household income across ZIP codes in Dewey County, South Dakota is about $77,523 — about 7% above the SD ZIP average ($72,498), and about 3% above the U.S. median ($75,149).
Among ZIPs with income data, 57630 (Whitehorse) is near the top at about $197,500, while 57652 (La Plant) is near the bottom at about $19,798.
Housing in Dewey County
For housing in Dewey County, South Dakota, the average median home value is about $129,725 and the average median rent is about $364.
The most populous ZIP is 57625 (North Eagle Butte) with about 3,857 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Dewey County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 57625 | North Eagle Butte | Dewey County | SD | 3,857 | $49,643 | $72,000 |
| 57601 | Mobridge | Dewey County | SD | 3,483 | $63,396 | $153,000 |
| 57656 | Timber Lake | Dewey County | SD | 911 | $63,571 | $86,800 |
| 57652 | La Plant | Dewey County | SD | 377 | $19,798 | — |
| 57661 | Whitehorse | Dewey County | SD | 152 | $56,250 | — |
| 57636 | Lantry | Dewey County | SD | 66 | $92,500 | $207,100 |
| 57630 | Whitehorse | Dewey County | SD | 21 | $197,500 | — |
Frequently asked questions
What are the demographics of Dewey County?
Dewey County, South Dakota has a combined ZIP-area population of about 8,867 across 7 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Dewey County?
The average median household income across ZIP codes in Dewey County, South Dakota is about $77,523, about 7% above the state ZIP average ($72,498), and about 3% above the U.S. median ($75,149). Average median home value is about $129,725. Among ZIPs with data, 57630 (Whitehorse) is near the top ($197,500) and 57652 (La Plant) is near the bottom ($19,798).
How many ZIP codes are in Dewey County?
Dewey 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 Dewey County?
This page lists ZIP codes in Dewey County, South Dakota with population, median household income, and home value. Select a ZIP for a full demographics profile.