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> South Dakota > Lake County
| County : | Lake County |
| State : | South Dakota (SD) |
| Land Area : | 563.27 sq mi |
| Water Area : | 11.88 sq mi |
| Latitude : | 44.0284497 |
| Longitude : | -97.1232229 |
| Population (2010): | 11,200 |
| Population Estimate (2012) : | 11,364 |
| Population Density : | 19.88/sq mi |
| Housing Units (2012) : | 5,559 |
| Median Household Income (2012) : | $46,071 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $65,123 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $111,400 (South Dakota : $129,800, USA : $181,400) |
Lake County Cities / Towns
| Brant Lake (159) | Chester (261) | Lake Madison (683) |
| Madison City (6,474) | Nunda Town (43) | Ramona Town (174) |
| Wentworth Village (171) | Winfred (52) |
Lake County Zip Codes
| 57016 (693) | 57022 (4,996) | 57042 (8,415) |
| 57050 (191) | 57054 (502) | 57057 (152) |
| 57071 (2,758) | 57075 (893) | 57076 (521) |