| Sumter to Indianapolis (Indiana) | 513.40 mi (826.24 km) |
| Sumter to Indianola (Iowa) | 882.86 mi (1,420.83 km) |
| Sumter to Indio (California) | 2,046.35 mi (3,293.28 km) |
| Sumter to Inglewood (California) | 2,162.46 mi (3,480.15 km) |
| Sumter to Inkster (Michigan) | 598.57 mi (963.31 km) |
| Sumter to Inver Grove Heights (Minnesota) | 1,009.13 mi (1,624.04 km) |
| Sumter to Inwood (New York) | 588.28 mi (946.75 km) |
| Sumter to Iona (Florida) | 521.33 mi (839.00 km) |
| Sumter to Ionia (Michigan) | 673.55 mi (1,083.98 km) |
| Sumter to Iowa City (Iowa) | 807.46 mi (1,299.49 km) |
| Sumter to Irmo (South Carolina) | 47.32 mi (76.15 km) |
| Sumter to Irondale (Alabama) | 361.08 mi (581.10 km) |
| Sumter to Ironton (Ohio) | 341.91 mi (550.25 km) |
| Sumter to Irvine (California) | 2,133.98 mi (3,434.32 km) |
| Sumter to Irving (Texas) | 958.09 mi (1,541.90 km) |
