| Mason City to Kingsville (Texas) | 1,111.57 mi (1,788.89 km) |
| Mason City to Kinston (North Carolina) | 994.45 mi (1,600.41 km) |
| Mason City to Kirkland (Washington) | 1,432.31 mi (2,305.08 km) |
| Mason City to Kirksville (Missouri) | 206.36 mi (332.11 km) |
| Mason City to Kirkwood (Missouri) | 347.49 mi (559.24 km) |
| Mason City to Kiryas Joel (New York) | 979.33 mi (1,576.07 km) |
| Mason City to Kissimmee (Florida) | 1,217.37 mi (1,959.17 km) |
| Mason City to Klamath Falls (Oregon) | 1,445.75 mi (2,326.71 km) |
| Mason City to Knightdale (North Carolina) | 932.47 mi (1,500.66 km) |
| Mason City to Knik-Fairview (Alaska) | 2,589.82 mi (4,167.91 km) |
| Mason City to Knoxville (Tennessee) | 698.34 mi (1,123.87 km) |
| Mason City to Kokomo (Indiana) | 408.55 mi (657.49 km) |
| Mason City to Kuna (Idaho) | 1,162.37 mi (1,870.66 km) |
| Mason City to Kyle (Texas) | 944.99 mi (1,520.81 km) |
| Mason City to La Cañada Flintridge (California) | 1,475.70 mi (2,374.91 km) |
