| Walker, South Dakota | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | South Dakota#USA |
| Pushpin Label: | Walker |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location within the state of South Dakota |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Corson |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 2172 |
| Coordinates: | 45.9103°N -101.0903°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 57659 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1261151 |
Walker is an unincorporated community in Corson County, South Dakota, United States. Although not tracked by the Census Bureau, Walker has been assigned the ZIP code of 57659.
The community was named for a local cattleman.[1]