South Dakota counties
Every county in South Dakota, with the ZIP codes recorded in each. Pick one to see its full ZIP code list.
- counties
- 66
- ZIP codes
- 385
All South Dakota counties
| County | ZIP codes | Largest city |
|---|---|---|
| Aurora County | 3 | Plankinton |
| Beadle County | 8 | Huron |
| Bennett County | 4 | Allen |
| Bon Homme County | 5 | Avon |
| Brookings County | 8 | Brookings |
| Brown County | 14 | Aberdeen |
| Brule County | 4 | Chamberlain |
| Buffalo County | 2 | Fort Thompson |
| Butte County | 4 | Belle Fourche |
| Campbell County | 3 | Herreid |
| Charles Mix County | 7 | Dante |
| Clark County | 7 | Bradley |
| Clay County | 4 | Burbank |
| Codington County | 6 | Florence |
| Corson County | 10 | Bullhead |
| Custer County | 5 | Buffalo Gap |
| Davison County | 3 | Ethan |
| Day County | 7 | Andover |
| Deuel County | 6 | Astoria |
| Dewey County | 7 | Eagle Butte |
| Douglas County | 5 | Armour |
| Edmunds County | 4 | Bowdle |
| Fall River County | 5 | Edgemont |
| Faulk County | 6 | Cresbard |
| Grant County | 8 | Big Stone City |
| Gregory County | 7 | Bonesteel |
| Haakon County | 3 | Midland |
| Hamlin County | 6 | Bryant |
| Hand County | 3 | Miller |
| Hanson County | 3 | Alexandria |
| Harding County | 6 | Buffalo |
| Hughes County | 3 | Blunt |
| Hutchinson County | 7 | Dimock |
| Hyde County | 3 | Highmore |
| Jackson County | 5 | Belvidere |
| Jerauld County | 3 | Alpena |
| Jones County | 3 | Draper |
| Kingsbury County | 7 | Arlington |
| Lake County | 7 | Chester |
| Lawrence County | 7 | Spearfish |
| Lincoln County | 7 | Canton |
| Lyman County | 6 | Kennebec |
| Marshall County | 6 | Amherst |
| McCook County | 5 | Bridgewater |
| McPherson County | 3 | Eureka |
| Meade County | 11 | Black Hawk |
| Mellette County | 3 | Norris |
| Miner County | 4 | Canova |
| Minnehaha County | 26 | Sioux Falls |
| Moody County | 4 | Colman |
| Oglala Lakota County | 6 | Kyle |
| Pennington County | 14 | Rapid City |
| Perkins County | 5 | Bison |
| Potter County | 4 | Gettysburg |
| Roberts County | 9 | Claire City |
| Sanborn County | 3 | Artesian |
| Spink County | 11 | Ashton |
| Stanley County | 2 | Fort Pierre |
| Sully County | 2 | Agar |
| Todd County | 5 | Mission |
| Tripp County | 5 | Colome |
| Turner County | 8 | Centerville |
| Union County | 5 | Alcester |
| Walworth County | 5 | Akaska |
| Yankton County | 6 | Gayville |
| Ziebach County | 2 | Cherry Creek |
Scope every county-equivalent recorded in South Dakota. Source Census 2024 county Gazetteer (2024 Gazetteer) and GeoNames US postal codes (2026-07 postal dump). Updated . Names and boundaries follow the Census Bureau's current county-equivalent set, not the SD postal source's older names.