| Boulder to Germantown (Wisconsin) | 910.27 mi (1,464.94 km) |
| Boulder to Gibsonton (Florida) | 1,551.75 mi (2,497.31 km) |
| Boulder to Gig Harbor (Washington) | 999.84 mi (1,609.08 km) |
| Boulder to Gilbert (Arizona) | 586.80 mi (944.36 km) |
| Boulder to Gillette (Wyoming) | 293.94 mi (473.06 km) |
| Boulder to Gilroy (California) | 905.89 mi (1,457.90 km) |
| Boulder to Gladeview (Florida) | 1,740.88 mi (2,801.68 km) |
| Boulder to Gladstone (Missouri) | 571.53 mi (919.78 km) |
| Boulder to Gladstone (Oregon) | 952.73 mi (1,533.27 km) |
| Boulder to Glasgow (Delaware) | 1,558.99 mi (2,508.96 km) |
| Boulder to Glasgow (Kentucky) | 1,063.20 mi (1,711.05 km) |
| Boulder to Glassboro (New Jersey) | 1,590.98 mi (2,560.44 km) |
| Boulder to Glassmanor (Maryland) | 1,504.82 mi (2,421.77 km) |
| Boulder to Glen Allen (Virginia) | 1,497.06 mi (2,409.28 km) |
| Boulder to Glen Burnie (Maryland) | 1,519.81 mi (2,445.90 km) |
