| Boulder to Greenwood Village (Colorado) | 33.54 mi (53.97 km) |
| Boulder to Greer (South Carolina) | 1,306.21 mi (2,102.14 km) |
| Boulder to Grenada (Mississippi) | 954.05 mi (1,535.39 km) |
| Boulder to Gresham (Oregon) | 948.03 mi (1,525.71 km) |
| Boulder to Gretna (Louisiana) | 1,105.89 mi (1,779.75 km) |
| Boulder to Griffin (Georgia) | 1,250.14 mi (2,011.90 km) |
| Boulder to Griffith (Indiana) | 936.90 mi (1,507.79 km) |
| Boulder to Grimes (Iowa) | 609.12 mi (980.29 km) |
| Boulder to Grosse Pointe Park (Michigan) | 1,168.40 mi (1,880.36 km) |
| Boulder to Grosse Pointe Woods (Michigan) | 1,169.97 mi (1,882.89 km) |
| Boulder to Grove City (Ohio) | 1,172.08 mi (1,886.28 km) |
| Boulder to Groveland (Florida) | 1,545.06 mi (2,486.53 km) |
| Boulder to Grover Beach (California) | 905.67 mi (1,457.54 km) |
| Boulder to Groves (Texas) | 945.35 mi (1,521.40 km) |
| Boulder to Groveton (Virginia) | 1,499.62 mi (2,413.41 km) |
