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> South Dakota > Dewey County
| County : | Dewey County |
| State : | South Dakota (SD) |
| Land Area : | 2,302.48 sq mi |
| Water Area : | 142.79 sq mi |
| Latitude : | 45.1500047 |
| Longitude : | -100.8522182 |
| Population (2010): | 5,301 |
| Population Estimate (2012) : | 5,358 |
| Population Density : | 2.30/sq mi |
| Housing Units (2012) : | 2,002 |
| Median Household Income (2012) : | $34,797 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $41,741 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $55,200 (South Dakota : $129,800, USA : $181,400) |
Dewey County Cities / Towns
| Eagle Butte City (1,318) | Green Grass (35) | Isabel Town (135) |
| La Plant (171) | North Eagle Butte (1,954) | Timber Lake City (443) |
| Whitehorse (141) |
Dewey County Zip Codes
| 57442 (1,664) | 57601 (4,003) | 57625 (4,230) |
| 57630 (32) | 57633 (414) | 57636 (164) |
| 57652 (402) | 57656 (723) | 57657 (203) |
| 57661 (88) |