| Iowa City to South Plainfield (New Jersey) | 892.56 mi (1,436.43 km) |
| Iowa City to South Portland (Maine) | 1,085.11 mi (1,746.32 km) |
| Iowa City to South Riding (Virginia) | 761.78 mi (1,225.97 km) |
| Iowa City to South River (New Jersey) | 896.12 mi (1,442.17 km) |
| Iowa City to South Salt Lake (Utah) | 1,058.76 mi (1,703.91 km) |
| Iowa City to South San Francisco (California) | 1,657.13 mi (2,666.90 km) |
| Iowa City to South San Jose Hills (California) | 1,525.67 mi (2,455.33 km) |
| Iowa City to South Sioux City (Nebraska) | 256.54 mi (412.86 km) |
| Iowa City to South St. Paul (Minnesota) | 235.86 mi (379.59 km) |
| Iowa City to South Valley (New Mexico) | 938.91 mi (1,511.04 km) |
| Iowa City to South Venice (Florida) | 1,133.95 mi (1,824.91 km) |
| Iowa City to South Whittier (California) | 1,534.65 mi (2,469.78 km) |
| Iowa City to South Yarmouth (Massachusetts) | 1,098.17 mi (1,767.33 km) |
| Iowa City to Southaven (Mississippi) | 470.79 mi (757.66 km) |
| Iowa City to Southchase (Florida) | 1,080.17 mi (1,738.37 km) |
