| Mason City to Indianapolis (Indiana) | 432.97 mi (696.79 km) |
| Mason City to Indianola (Iowa) | 124.79 mi (200.84 km) |
| Mason City to Indio (California) | 1,399.55 mi (2,252.36 km) |
| Mason City to Inglewood (California) | 1,492.03 mi (2,401.20 km) |
| Mason City to Inkster (Michigan) | 504.93 mi (812.60 km) |
| Mason City to Inver Grove Heights (Minnesota) | 116.01 mi (186.70 km) |
| Mason City to Inwood (New York) | 1,013.16 mi (1,630.53 km) |
| Mason City to Iona (Florida) | 1,311.31 mi (2,110.36 km) |
| Mason City to Ionia (Michigan) | 410.26 mi (660.25 km) |
| Mason City to Iowa City (Iowa) | 133.76 mi (215.26 km) |
| Mason City to Irmo (South Carolina) | 898.58 mi (1,446.12 km) |
| Mason City to Irondale (Alabama) | 751.70 mi (1,209.75 km) |
| Mason City to Ironton (Ohio) | 635.08 mi (1,022.07 km) |
| Mason City to Irvine (California) | 1,475.12 mi (2,373.98 km) |
| Mason City to Irving (Texas) | 739.82 mi (1,190.62 km) |
