| Middlesex to Harrison (Ohio) | 552.27 mi (888.79 km) |
| Middlesex to Harrison (Wisconsin) | 745.91 mi (1,200.42 km) |
| Middlesex to Harrisonburg (Virginia) | 275.91 mi (444.04 km) |
| Middlesex to Hartford (Connecticut) | 125.36 mi (201.75 km) |
| Middlesex to Hartford (Wisconsin) | 736.99 mi (1,186.07 km) |
| Middlesex to Hartselle (Alabama) | 801.61 mi (1,290.07 km) |
| Middlesex to Hartsville (Tennessee) | 692.73 mi (1,114.84 km) |
| Middlesex to Harvey (Illinois) | 687.84 mi (1,106.98 km) |
| Middlesex to Harvey (Louisiana) | 1,144.45 mi (1,841.81 km) |
| Middlesex to Hasbrouck Heights (New Jersey) | 29.91 mi (48.13 km) |
| Middlesex to Haslett (Michigan) | 532.38 mi (856.79 km) |
| Middlesex to Hastings (Minnesota) | 973.39 mi (1,566.52 km) |
| Middlesex to Hastings (Nebraska) | 1,249.62 mi (2,011.08 km) |
| Middlesex to Hattiesburg (Mississippi) | 1,044.83 mi (1,681.50 km) |
| Middlesex to Hauppauge (New York) | 69.70 mi (112.17 km) |
