| County : | Johnson County |
| State : | Iowa (IA) |
| Land Area : | 614.04 sq mi |
| Water Area : | 9.11 sq mi |
| Latitude : | 41.6687365 |
| Longitude : | -91.5888122 |
| Population (2010): | 130,882 |
| Population Estimate (2012) : | 131,627 |
| Population Density : | 213.15/sq mi |
| Housing Units (2012) : | 55,967 |
| Median Household Income (2012) : | $53,993 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $79,337 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $183,100 (Iowa : $123,000, USA : $181,400) |
Johnson County Cities / Towns
| Coralville City (18,907) | Frytown (165) | Hills City (703) |
| Iowa City (67,862) | Lone Tree City (1,300) | North Liberty City (13,374) |
| Oxford City (807) | Shueyville City (577) | Solon City (2,037) |
| Swisher City (879) | Tiffin City (1,947) | University Heights City (1,051) |
| West Branch City (2,322) |
Johnson County Zip Codes
| 52203 (1,932) | 52228 (2,772) | 52235 (698) |
| 52240 (32,230) | 52241 (18,911) | 52242 (1,592) |
| 52245 (22,573) | 52246 (21,114) | 52247 (5,645) |
| 52253 (3,192) | 52317 (14,775) | 52322 (2,436) |
| 52325 (873) | 52327 (3,012) | 52333 (6,168) |
| 52338 (3,283) | 52340 (2,180) | 52356 (2,656) |
| 52358 (3,733) | 52404 (37,796) | 52755 (1,928) |