| Duncan to North Tustin (California) | 1,135.75 mi (1,827.82 km) |
| Duncan to North Valley (New Mexico) | 495.12 mi (796.82 km) |
| Duncan to North Valley Stream (New York) | 1,386.38 mi (2,231.16 km) |
| Duncan to North Wantagh (New York) | 1,396.82 mi (2,247.97 km) |
| Duncan to Northampton (Massachusetts) | 1,461.65 mi (2,352.31 km) |
| Duncan to Northampton (Pennsylvania) | 1,294.72 mi (2,083.65 km) |
| Duncan to Northbrook (Illinois) | 756.41 mi (1,217.33 km) |
| Duncan to Northbrook (Ohio) | 804.69 mi (1,295.03 km) |
| Duncan to Northdale (Florida) | 1,010.04 mi (1,625.50 km) |
| Duncan to Northfield (Minnesota) | 730.01 mi (1,174.83 km) |
| Duncan to Northglenn (Colorado) | 536.68 mi (863.70 km) |
| Duncan to Northlake (Illinois) | 744.07 mi (1,197.46 km) |
| Duncan to Northport (Alabama) | 598.28 mi (962.84 km) |
| Duncan to Northview (Michigan) | 884.43 mi (1,423.35 km) |
| Duncan to Norton (Ohio) | 993.20 mi (1,598.41 km) |
