| Gretna to North Tustin (California) | 1,645.01 mi (2,647.38 km) |
| Gretna to North Valley (New Mexico) | 1,029.84 mi (1,657.36 km) |
| Gretna to North Valley Stream (New York) | 1,181.26 mi (1,901.05 km) |
| Gretna to North Wantagh (New York) | 1,190.48 mi (1,915.89 km) |
| Gretna to Northampton (Massachusetts) | 1,290.17 mi (2,076.32 km) |
| Gretna to Northampton (Pennsylvania) | 1,105.63 mi (1,779.34 km) |
| Gretna to Northbrook (Illinois) | 853.21 mi (1,373.10 km) |
| Gretna to Northbrook (Ohio) | 715.89 mi (1,152.12 km) |
| Gretna to Northdale (Florida) | 471.39 mi (758.62 km) |
| Gretna to Northfield (Minnesota) | 1,019.30 mi (1,640.40 km) |
| Gretna to Northglenn (Colorado) | 1,089.47 mi (1,753.33 km) |
| Gretna to Northlake (Illinois) | 837.97 mi (1,348.58 km) |
| Gretna to Northport (Alabama) | 272.66 mi (438.81 km) |
| Gretna to Northview (Michigan) | 940.07 mi (1,512.90 km) |
| Gretna to Norton (Ohio) | 901.13 mi (1,450.23 km) |
