| County : | Washington County |
| State : | Ohio (OH) |
| Land Area : | 631.97 sq mi |
| Water Area : | 8.03 sq mi |
| Latitude : | 39.4506837 |
| Longitude : | -81.4906531 |
| Population (2010): | 61,778 |
| Population Estimate (2012) : | 61,751 |
| Population Density : | 97.75/sq mi |
| Housing Units (2012) : | 28,367 |
| Median Household Income (2012) : | $43,829 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $54,923 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $108,800 (Ohio : $133,700, USA : $181,400) |
Washington County Cities / Towns
| Belpre City (6,441) | Beverly Village (1,313) | Devola (2,652) |
| Little Hocking (263) | Lowell Village (549) | Lower Salem Village (86) |
| Macksburg Village (186) | Marietta City (14,085) | Matamoras Village (896) |
| Newport (1,003) | Reno (1,293) | Vincent (339) |
| Waterford (450) |
Washington County Zip Codes
| 43787 (2,997) | 45711 (1,115) | 45714 (9,951) |
| 45715 (2,630) | 45721 (29) | 45723 (3,740) |
| 45724 (1,744) | 45729 (1,289) | 45742 (3,014) |
| 45744 (2,728) | 45745 (1,140) | 45746 (433) |
| 45750 (27,785) | 45767 (2,800) | 45768 (1,703) |
| 45773 (83) | 45784 (3,386) | 45786 (3,253) |
| 45787 (29) | 45788 (1,129) | 45789 (177) |