| Potomac to National City (California) | 2,259.13 mi (3,635.72 km) |
| Potomac to Naugatuck (Connecticut) | 277.36 mi (446.36 km) |
| Potomac to Navarre (Florida) | 808.98 mi (1,301.92 km) |
| Potomac to Nederland (Texas) | 1,140.08 mi (1,834.77 km) |
| Potomac to Neenah (Wisconsin) | 682.21 mi (1,097.91 km) |
| Potomac to Neosho (Missouri) | 946.83 mi (1,523.78 km) |
| Potomac to Nesconset (New York) | 248.75 mi (400.33 km) |
| Potomac to New Albany (Indiana) | 467.92 mi (753.04 km) |
| Potomac to New Albany (Ohio) | 306.77 mi (493.71 km) |
| Potomac to New Baltimore (Michigan) | 385.22 mi (619.95 km) |
| Potomac to New Baltimore (Virginia) | 33.45 mi (53.83 km) |
| Potomac to New Bedford (Massachusetts) | 376.76 mi (606.33 km) |
| Potomac to New Berlin (Wisconsin) | 631.78 mi (1,016.76 km) |
| Potomac to New Bern (North Carolina) | 270.83 mi (435.86 km) |
| Potomac to New Braunfels (Texas) | 1,351.11 mi (2,174.41 km) |
