| County : | Sumner County |
| State : | Kansas (KS) |
| Land Area : | 1,181.93 sq mi |
| Water Area : | 3.01 sq mi |
| Latitude : | 37.2366630 |
| Longitude : | -97.4933494 |
| Population (2010): | 24,132 |
| Population Estimate (2012) : | 24,000 |
| Population Density : | 20.42/sq mi |
| Housing Units (2012) : | 10,865 |
| Median Household Income (2012) : | $48,105 (Kansas : $51,273, USA : $53,046) |
| Median Family Income (2012) : | $63,451 (Kansas : $64,731, USA : $64,585) |
| Median House Price (2012) : | $85,600 (Kansas : $127,400, USA : $181,400) |
Sumner County Cities / Towns
| Argonia City (501) | Belle Plaine City (1,681) | Caldwell City (1,068) |
| Conway Springs City (1,272) | Geuda Springs City (185) | Hunnewell City (67) |
| Mayfield City (113) | Milan City (82) | Milton (155) |
| Mulvane City (6,111) | Oxford City (1,049) | South Haven City (363) |
| Wellington City (8,172) |
Sumner County Zip Codes
| 67004 (827) | 67013 (3,145) | 67018 (149) |
| 67022 (1,461) | 67026 (4,845) | 67031 (2,308) |
| 67049 (79) | 67051 (456) | 67103 (326) |
| 67105 (190) | 67106 (388) | 67110 (8,415) |
| 67118 (810) | 67119 (1,457) | 67120 (1,358) |
| 67140 (802) | 67146 (1,830) | 67152 (9,541) |