| Gretna to Greenwood (South Carolina) | 548.82 mi (883.25 km) |
| Gretna to Greenwood Village (Colorado) | 1,075.08 mi (1,730.17 km) |
| Gretna to Greer (South Carolina) | 572.79 mi (921.81 km) |
| Gretna to Grenada (Mississippi) | 267.86 mi (431.08 km) |
| Gretna to Gresham (Oregon) | 2,051.67 mi (3,301.84 km) |
| Gretna to Griffin (Georgia) | 410.51 mi (660.66 km) |
| Gretna to Griffith (Indiana) | 816.00 mi (1,313.23 km) |
| Gretna to Grimes (Iowa) | 839.46 mi (1,350.99 km) |
| Gretna to Grosse Pointe Park (Michigan) | 947.89 mi (1,525.49 km) |
| Gretna to Grosse Pointe Woods (Michigan) | 952.11 mi (1,532.27 km) |
| Gretna to Grove City (Ohio) | 792.91 mi (1,276.06 km) |
| Gretna to Groveland (Florida) | 503.85 mi (810.87 km) |
| Gretna to Grover Beach (California) | 1,809.57 mi (2,912.21 km) |
| Gretna to Groves (Texas) | 231.43 mi (372.45 km) |
| Gretna to Groveton (Virginia) | 957.48 mi (1,540.92 km) |
