| Risca to Myrtle Grove (North Carolina) | 3,795.47 mi (6,108.22 km) |
| Risca to Nacogdoches (Texas) | 4,604.70 mi (7,410.56 km) |
| Risca to Nampa (Idaho) | 4,755.54 mi (7,653.30 km) |
| Risca to Nanakuli (Hawaii) | 7,171.62 mi (11,541.60 km) |
| Risca to Nanticoke (Pennsylvania) | 3,398.46 mi (5,469.30 km) |
| Risca to Nanuet (New York) | 3,321.70 mi (5,345.76 km) |
| Risca to Napa (California) | 5,226.72 mi (8,411.60 km) |
| Risca to Naperville (Illinois) | 3,857.41 mi (6,207.91 km) |
| Risca to Naples (Florida) | 4,349.98 mi (7,000.61 km) |
| Risca to Naranja (Florida) | 4,323.69 mi (6,958.31 km) |
| Risca to Nashua (New Hampshire) | 3,149.32 mi (5,068.34 km) |
| Risca to Nashville (Tennessee) | 4,064.37 mi (6,540.97 km) |
| Risca to Natchez (Mississippi) | 4,477.27 mi (7,205.46 km) |
| Risca to Natchitoches (Louisiana) | 4,536.62 mi (7,300.99 km) |
| Risca to National City (California) | 5,379.52 mi (8,657.49 km) |
