| Duncan to Greenfield (Indiana) | 760.00 mi (1,223.10 km) |
| Duncan to Greenfield (Wisconsin) | 788.83 mi (1,269.50 km) |
| Duncan to Greenlawn (New York) | 1,406.22 mi (2,263.10 km) |
| Duncan to Greensboro (North Carolina) | 1,024.25 mi (1,648.37 km) |
| Duncan to Greensburg (Indiana) | 761.14 mi (1,224.94 km) |
| Duncan to Greensburg (Pennsylvania) | 1,081.71 mi (1,740.85 km) |
| Duncan to Greentree (New Jersey) | 1,312.20 mi (2,111.78 km) |
| Duncan to Greenville (Mississippi) | 401.63 mi (646.36 km) |
| Duncan to Greenville (North Carolina) | 1,162.04 mi (1,870.13 km) |
| Duncan to Greenville (Ohio) | 824.50 mi (1,326.91 km) |
| Duncan to Greenville (South Carolina) | 883.18 mi (1,421.34 km) |
| Duncan to Greenville (Texas) | 143.39 mi (230.77 km) |
| Duncan to Greenwood (Indiana) | 738.36 mi (1,188.28 km) |
| Duncan to Greenwood (Mississippi) | 447.75 mi (720.58 km) |
| Duncan to Greenwood (South Carolina) | 898.64 mi (1,446.23 km) |
