Dewey County, South Dakota ZIP codes
7ZIP codes
7Cities and towns
5,777People in ZIP areas
605Area code
Dewey County is in South Dakota and the Mountain Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.
All ZIP codes in Dewey County
| ZIP code | City | Type | Population | Median income |
|---|---|---|---|---|
| 57625 | Eagle Butte | Standard | 3,775 | $43,235 |
| 57630 | Glencross | Standard | 11 | – |
| 57633 | Isabel | Standard | 445 | $78,750 |
| 57636 | Lantry | PO Box only | 104 | $112,375 |
| 57652 | Ridgeview | Standard | 265 | $19,327 |
| 57656 | Timber Lake | Standard | 1,000 | $66,094 |
| 57661 | Whitehorse | PO Box only | 177 | $55,000 |
Cities and towns in Dewey County
- Eagle Butte 1 ZIP
- Glencross 1 ZIP
- Isabel 1 ZIP
- Lantry 1 ZIP
- Ridgeview 1 ZIP
- Timber Lake 1 ZIP
- Whitehorse 1 ZIP
Area codes in Dewey County
Questions
- How many ZIP codes are in Dewey County, SD?
- Dewey County has 7 ZIP codes, 5 of them standard ZIP codes for street addresses.
- What cities are in Dewey County?
- Dewey County ZIP codes cover Eagle Butte, Glencross, Isabel, Lantry, Ridgeview, Timber Lake and Whitehorse.
- What area code is Dewey County, SD?
- Dewey County uses area code 605.
- What time zone is Dewey County in?
- Dewey County is in Mountain Time.
Other South Dakota counties
- Aurora County
- Beadle County
- Bennett County
- Bon Homme County
- Brookings County
- Brown County
- Brule County
- Buffalo County
- Butte County
- Campbell County
- Charles Mix County
- Clark County
- Clay County
- Codington County
- Corson County
- Custer County
- Davison County
- Day County
- Deuel County
- Douglas County
- Edmunds County
- Fall River County
- Faulk County
- Grant County
- Gregory County
- Haakon County
- Hamlin County
- Hand County
- Hanson County
- Harding County
- Hughes County
- Hutchinson County
- Hyde County
- Jackson County
- Jerauld County
- Jones County
- Kingsbury County
- Lake County
- Lawrence County
- Lincoln County
- Lyman County
- Marshall County
- McCook County
- McPherson County
- Meade County
- Mellette County
- Miner County
- Minnehaha County
- Moody County
- Oglala Lakota County
- Pennington County
- Perkins County
- Potter County
- Roberts County
- Sanborn County
- Spink County
- Stanley County
- Sully County
- Todd County
- Tripp County
- Turner County
- Union County
- Walworth County
- Yankton County
- Ziebach County