| Port Huron to Norton (Ohio) | 140.92 mi (226.79 km) |
| Port Huron to Norton Shores (Michigan) | 192.84 mi (310.35 km) |
| Port Huron to Norwalk (California) | 2,010.94 mi (3,236.30 km) |
| Port Huron to Norwalk (Connecticut) | 480.04 mi (772.55 km) |
| Port Huron to Norwalk (Iowa) | 584.33 mi (940.38 km) |
| Port Huron to Norwalk (Ohio) | 120.39 mi (193.74 km) |
| Port Huron to Norwich (Connecticut) | 538.05 mi (865.91 km) |
| Port Huron to Norwood (Ohio) | 284.11 mi (457.24 km) |
| Port Huron to Novato (California) | 2,113.10 mi (3,400.71 km) |
| Port Huron to Novi (Michigan) | 63.66 mi (102.45 km) |
| Port Huron to O'Fallon (Illinois) | 494.36 mi (795.59 km) |
| Port Huron to O'Fallon (Missouri) | 520.29 mi (837.33 km) |
| Port Huron to Oak Creek (Wisconsin) | 276.36 mi (444.76 km) |
| Port Huron to Oak Forest (Illinois) | 287.70 mi (463.01 km) |
| Port Huron to Oak Grove (Oregon) | 1,977.39 mi (3,182.30 km) |
