| Iowa City to Sugar Hill (Georgia) | 661.33 mi (1,064.30 km) |
| Iowa City to Sugar Land (Texas) | 864.44 mi (1,391.19 km) |
| Iowa City to Sugarland Run (Virginia) | 766.15 mi (1,233.00 km) |
| Iowa City to Sugarmill Woods (Florida) | 1,026.95 mi (1,652.71 km) |
| Iowa City to Suisun City (California) | 1,622.81 mi (2,611.66 km) |
| Iowa City to Suitland (Maryland) | 793.25 mi (1,276.62 km) |
| Iowa City to Sulphur (Louisiana) | 796.08 mi (1,281.16 km) |
| Iowa City to Sulphur Springs (Texas) | 629.26 mi (1,012.70 km) |
| Iowa City to Summerfield (Maryland) | 794.83 mi (1,279.15 km) |
| Iowa City to Summerfield (North Carolina) | 729.15 mi (1,173.46 km) |
| Iowa City to Summerlin South (Nevada) | 1,330.97 mi (2,141.99 km) |
| Iowa City to Summerville (South Carolina) | 862.51 mi (1,388.08 km) |
| Iowa City to Summit (Illinois) | 191.82 mi (308.71 km) |
| Iowa City to Summit (New Jersey) | 893.46 mi (1,437.88 km) |
| Iowa City to Sumner (Washington) | 1,551.75 mi (2,497.30 km) |
