| Duncan to North Myrtle Beach (South Carolina) | 1,097.66 mi (1,766.51 km) |
| Duncan to North New Hyde Park (New York) | 1,388.16 mi (2,234.03 km) |
| Duncan to North Ogden (Utah) | 895.05 mi (1,440.45 km) |
| Duncan to North Olmsted (Ohio) | 990.31 mi (1,593.74 km) |
| Duncan to North Palm Beach (Florida) | 1,185.47 mi (1,907.82 km) |
| Duncan to North Plainfield (New Jersey) | 1,347.90 mi (2,169.24 km) |
| Duncan to North Platte (Nebraska) | 480.65 mi (773.53 km) |
| Duncan to North Port (Florida) | 1,064.97 mi (1,713.91 km) |
| Duncan to North Potomac (Maryland) | 1,183.63 mi (1,904.87 km) |
| Duncan to North Richland Hills (Texas) | 122.94 mi (197.86 km) |
| Duncan to North Ridgeville (Ohio) | 984.71 mi (1,584.74 km) |
| Duncan to North Royalton (Ohio) | 995.86 mi (1,602.68 km) |
| Duncan to North Salt Lake (Utah) | 878.96 mi (1,414.55 km) |
| Duncan to North St. Paul (Minnesota) | 768.97 mi (1,237.54 km) |
| Duncan to North Tonawanda (New York) | 1,178.49 mi (1,896.60 km) |
