| Iowa City to Somersworth (New Hampshire) | 1,055.48 mi (1,698.63 km) |
| Iowa City to Somerton (Arizona) | 1,415.29 mi (2,277.68 km) |
| Iowa City to Somerville (Massachusetts) | 1,047.27 mi (1,685.41 km) |
| Iowa City to Somerville (New Jersey) | 882.61 mi (1,420.42 km) |
| Iowa City to Sonoma (California) | 1,645.15 mi (2,647.61 km) |
| Iowa City to Soquel (California) | 1,648.32 mi (2,652.72 km) |
| Iowa City to South Bend (Indiana) | 271.49 mi (436.92 km) |
| Iowa City to South Bradenton (Florida) | 1,103.51 mi (1,775.93 km) |
| Iowa City to South Burlington (Vermont) | 942.34 mi (1,516.54 km) |
| Iowa City to South Charleston (West Virginia) | 567.25 mi (912.90 km) |
| Iowa City to South Daytona (Florida) | 1,045.07 mi (1,681.88 km) |
| Iowa City to South El Monte (California) | 1,531.76 mi (2,465.14 km) |
| Iowa City to South Elgin (Illinois) | 167.23 mi (269.12 km) |
| Iowa City to South Euclid (Ohio) | 516.85 mi (831.79 km) |
| Iowa City to South Farmingdale (New York) | 940.77 mi (1,514.02 km) |
