| Iowa City to Roy (Utah) | 1,061.20 mi (1,707.84 km) |
| Iowa City to Royal Kunia (Hawaii) | 4,053.86 mi (6,524.06 km) |
| Iowa City to Royal Oak (Michigan) | 433.38 mi (697.45 km) |
| Iowa City to Royal Palm Beach (Florida) | 1,216.07 mi (1,957.07 km) |
| Iowa City to Royse City (Texas) | 654.58 mi (1,053.44 km) |
| Iowa City to Ruskin (Florida) | 1,092.43 mi (1,758.09 km) |
| Iowa City to Russellville (Alabama) | 535.42 mi (861.67 km) |
| Iowa City to Russellville (Arkansas) | 449.27 mi (723.03 km) |
| Iowa City to Ruston (Louisiana) | 633.27 mi (1,019.15 km) |
| Iowa City to Rutherford (New Jersey) | 905.61 mi (1,457.45 km) |
| Iowa City to Rutland (Vermont) | 950.62 mi (1,529.87 km) |
| Iowa City to Sabana Grande (Puerto Rico) | 2,179.28 mi (3,507.21 km) |
| Iowa City to Sachse (Texas) | 660.69 mi (1,063.27 km) |
| Iowa City to Saco (Maine) | 1,076.48 mi (1,732.43 km) |
| Iowa City to Sacramento (California) | 1,588.20 mi (2,555.97 km) |
