| San Mateo to Groveton (Virginia) | 2,432.57 mi (3,914.84 km) |
| San Mateo to Grovetown (Georgia) | 2,256.48 mi (3,631.45 km) |
| San Mateo to Guayama (Puerto Rico) | 3,633.35 mi (5,847.31 km) |
| San Mateo to Guaynabo (Puerto Rico) | 3,617.46 mi (5,821.74 km) |
| San Mateo to Gulf Shores (Alabama) | 2,034.80 mi (3,274.69 km) |
| San Mateo to Gulfport (Florida) | 2,382.11 mi (3,833.64 km) |
| San Mateo to Gulfport (Mississippi) | 1,955.85 mi (3,147.63 km) |
| San Mateo to Gunbarrel (Colorado) | 937.50 mi (1,508.76 km) |
| San Mateo to Gurnee (Illinois) | 1,837.58 mi (2,957.31 km) |
| San Mateo to Guthrie (Oklahoma) | 1,379.11 mi (2,219.46 km) |
| San Mateo to Guttenberg (New Jersey) | 2,564.49 mi (4,127.14 km) |
| San Mateo to Guymon (Oklahoma) | 1,147.03 mi (1,845.96 km) |
| San Mateo to Hacienda Heights (California) | 345.62 mi (556.22 km) |
| San Mateo to Hackensack (New Jersey) | 2,561.09 mi (4,121.67 km) |
| San Mateo to Hackettstown (New Jersey) | 2,521.55 mi (4,058.04 km) |
