| Mason City to Harrison (Ohio) | 512.95 mi (825.52 km) |
| Mason City to Harrison (Wisconsin) | 255.52 mi (411.23 km) |
| Mason City to Harrisonburg (Virginia) | 815.68 mi (1,312.71 km) |
| Mason City to Hartford (Connecticut) | 1,047.54 mi (1,685.86 km) |
| Mason City to Hartford (Wisconsin) | 242.95 mi (391.00 km) |
| Mason City to Hartselle (Alabama) | 689.27 mi (1,109.27 km) |
| Mason City to Hartsville (Tennessee) | 597.71 mi (961.92 km) |
| Mason City to Harvey (Illinois) | 302.44 mi (486.73 km) |
| Mason City to Harvey (Louisiana) | 932.43 mi (1,500.60 km) |
| Mason City to Hasbrouck Heights (New Jersey) | 992.33 mi (1,597.00 km) |
| Mason City to Haslett (Michigan) | 445.55 mi (717.05 km) |
| Mason City to Hastings (Minnesota) | 110.73 mi (178.20 km) |
| Mason City to Hastings (Nebraska) | 319.93 mi (514.87 km) |
| Mason City to Hattiesburg (Mississippi) | 845.31 mi (1,360.40 km) |
| Mason City to Hauppauge (New York) | 1,036.56 mi (1,668.18 km) |
