| Potomac to Greenfield (California) | 2,392.73 mi (3,850.72 km) |
| Potomac to Greenfield (Indiana) | 461.01 mi (741.93 km) |
| Potomac to Greenfield (Wisconsin) | 625.70 mi (1,006.97 km) |
| Potomac to Greenlawn (New York) | 239.72 mi (385.80 km) |
| Potomac to Greensboro (North Carolina) | 247.88 mi (398.93 km) |
| Potomac to Greensburg (Indiana) | 445.43 mi (716.85 km) |
| Potomac to Greensburg (Pennsylvania) | 153.81 mi (247.53 km) |
| Potomac to Greentree (New Jersey) | 133.89 mi (215.47 km) |
| Potomac to Greenville (Mississippi) | 863.67 mi (1,389.95 km) |
| Potomac to Greenville (North Carolina) | 236.50 mi (380.60 km) |
| Potomac to Greenville (Ohio) | 402.58 mi (647.90 km) |
| Potomac to Greenville (South Carolina) | 405.95 mi (653.32 km) |
| Potomac to Greenville (Texas) | 1,129.78 mi (1,818.21 km) |
| Potomac to Greenwood (Indiana) | 478.03 mi (769.31 km) |
| Potomac to Greenwood (Mississippi) | 817.05 mi (1,314.91 km) |
