| County : | Harper County |
| State : | Oklahoma (OK) |
| Land Area : | 1,039.01 sq mi |
| Water Area : | 2.03 sq mi |
| Latitude : | 36.8004561 |
| Longitude : | -99.6628420 |
| Population (2010): | 3,685 |
| Population Estimate (2012) : | 3,672 |
| Population Density : | 3.55/sq mi |
| Housing Units (2012) : | 1,908 |
| Median Household Income (2012) : | $46,437 (Oklahoma : $44,891, USA : $53,046) |
| Median Family Income (2012) : | $52,976 (Oklahoma : $56,068, USA : $64,585) |
| Median House Price (2012) : | $67,500 (Oklahoma : $110,800, USA : $181,400) |
Harper County Cities / Towns
| Buffalo Town (1,299) | Laverne Town (1,344) | May Town (39) |
| Rosston Town (31) |
Harper County Zip Codes
| 73801 (15,228) | 73834 (1,643) | 73842 (494) |
| 73844 (269) | 73848 (2,156) | 73851 (80) |
| 73855 (106) |