| City : | Duncan City |
| County : | Crawford County, Gila County, Lyon County, Stephens County |
| State : | Oklahoma (OK) |
| | |
| Land Area : | 43.11 sq mi |
| Water Area : | 4.87 sq mi |
| Latitude : | 34.5061503 |
| Longitude : | -98.0053843 |
| | |
| Population (2010): | 23,431 |
| Population Estimate (2012) : | 23,332 |
| Population Density : | 543.52/sq mi |
| Housing Units (2012) : | 11,064 |
| Median Household Income (2012) : | $41,387 (Oklahoma : $44,891, USA : $53,046) |
| Median Family Income (2012) : | $53,216 (Oklahoma : $56,068, USA : $64,585) |
| Median House Price (2012) : | $96,100 (Oklahoma : $110,800, USA : $181,400) |