Corson County, South Dakota ZIP codes
11 ZIP codes are in Corson County, plus 5 that cross in from neighboring counties.
- ZIP codes
- 11
- Population in these ZIPs
- 4,221
- Avg. median income
- $56,100population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Corson County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 57621 | Bullhead | 294 | $32,589 | — |
| 57633 | Isabel | 445 | $78,750 | $70,000 |
| 57634 | Keldron | 131 | $88,125 | $151,600 |
| 57639 | Little Eagle | 290 | $21,250 | — |
| 57641 | Mc Intosh | 215 | $83,750 | $77,500 |
| 57642 | Mc Laughlin | 1,969 | $58,750 | $103,800 |
| 57645 | Morristown | 184 | $56,667 | $52,100 |
| 57657 | Trail City | 247 | — | $57,100 |
| 57658 | Wakpala | 319 | $23,000 | $85,000 |
| 57659 | Walker | 16 | $103,333 | — |
| 57660 | Watauga | 111 | $67,292 | $86,300 |
ZIP codes partly in Corson County
These ZIP codes are mostly in a neighboring county but cover part of Corson County.
| ZIP code | City | State | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|---|
| 57601 | Mobridge | SD | Dewey County | 3,422 | $66,003 | $129,000 |
| 57638 | Lemmon | SD | Perkins County | 1,852 | $58,533 | $115,000 |
| 57644 | Meadow | SD | Perkins County | 388 | $68,229 | $229,300 |
| 57656 | Timber Lake | SD | Dewey County | 1,000 | $66,094 | $86,300 |
| 58568 | Selfridge | ND | Sioux County | 544 | $58,636 | $81,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Corson County
Nearby counties
Frequently asked questions
How many ZIP codes are in Corson County, South Dakota?
11 ZIP codes are mainly in Corson County, and 5 more ZIP codes from neighboring areas reach partly into it.
What cities are in Corson County?
ZIP codes in Corson County use the city names Bullhead, Isabel, Keldron, Little Eagle, Mc Intosh, Mc Laughlin, Morristown, Trail City, Wakpala, Walker and Watauga.