| Iowa City to Rancho Cordova (California) | 1,576.95 mi (2,537.85 km) |
| Iowa City to Rancho Cucamonga (California) | 1,504.96 mi (2,422.01 km) |
| Iowa City to Rancho Mirage (California) | 1,459.51 mi (2,348.86 km) |
| Iowa City to Rancho Palos Verdes (California) | 1,557.27 mi (2,506.18 km) |
| Iowa City to Rancho San Diego (California) | 1,518.90 mi (2,444.43 km) |
| Iowa City to Rancho Santa Margarita (California) | 1,522.80 mi (2,450.70 km) |
| Iowa City to Randallstown (Maryland) | 788.51 mi (1,268.98 km) |
| Iowa City to Rantoul (Illinois) | 199.32 mi (320.77 km) |
| Iowa City to Rapid City (South Dakota) | 614.50 mi (988.94 km) |
| Iowa City to Ravenna (Ohio) | 533.91 mi (859.25 km) |
| Iowa City to Raymondville (Texas) | 1,107.28 mi (1,781.99 km) |
| Iowa City to Raymore (Missouri) | 250.39 mi (402.97 km) |
| Iowa City to Raytown (Missouri) | 240.17 mi (386.52 km) |
| Iowa City to Reading (Ohio) | 409.11 mi (658.39 km) |
| Iowa City to Reading (Pennsylvania) | 817.61 mi (1,315.81 km) |
