| County : | Jefferson County |
| State : | Ohio (OH) |
| Land Area : | 408.33 sq mi |
| Water Area : | 2.62 sq mi |
| Latitude : | 40.3991880 |
| Longitude : | -80.7614097 |
| Population (2010): | 69,709 |
| Population Estimate (2012) : | 69,343 |
| Population Density : | 170.72/sq mi |
| Housing Units (2012) : | 32,826 |
| Median Household Income (2012) : | $40,115 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $51,037 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $86,500 (Ohio : $133,700, USA : $181,400) |
Jefferson County Cities / Towns
| Adena Village (759) | Amsterdam Village (511) | Bergholz Village (664) |
| Bloomingdale Village (202) | Brilliant (1,482) | Dillonvale Village (665) |
| Empire Village (299) | Irondale Village (387) | Mingo Junction Village (3,454) |
| Mount Pleasant Village (478) | New Alexandria Village (272) | Pottery Addition (293) |
| Rayland Village (417) | Richmond Village (481) | Smithfield Village (869) |
| Steubenville City (18,659) | Stratton Village (294) | Tiltonsville Village (1,372) |
| Toronto City (5,091) | Wintersville Village (3,924) | Yorkville Village (1,079) |
Jefferson County Zip Codes
| 43901 (2,219) | 43903 (2,208) | 43907 (6,008) |
| 43908 (1,574) | 43910 (3,631) | 43913 (1,490) |
| 43917 (3,136) | 43925 (82) | 43926 (285) |
| 43930 (882) | 43932 (931) | 43938 (5,794) |
| 43939 (513) | 43943 (3,472) | 43944 (2,529) |
| 43945 (3,191) | 43948 (670) | 43952 (19,050) |
| 43953 (11,553) | 43961 (294) | 43963 (1,362) |
| 43964 (9,575) | 43970 (31) | 43971 (1,150) |