| San Mateo to Johnstown (Pennsylvania) | 2,316.53 mi (3,728.09 km) |
| San Mateo to Joliet (Illinois) | 1,828.79 mi (2,943.16 km) |
| San Mateo to Jonesboro (Arkansas) | 1,748.51 mi (2,813.96 km) |
| San Mateo to Joplin (Missouri) | 1,522.98 mi (2,451.00 km) |
| San Mateo to Joppatowne (Maryland) | 2,462.02 mi (3,962.23 km) |
| San Mateo to Juana Díaz (Puerto Rico) | 3,608.83 mi (5,807.85 km) |
| San Mateo to Junction City (Kansas) | 1,380.02 mi (2,220.93 km) |
| San Mateo to Juneau (Alaska) | 1,539.50 mi (2,477.58 km) |
| San Mateo to Jupiter (Florida) | 2,550.00 mi (4,103.83 km) |
| San Mateo to Jupiter Farms (Florida) | 2,544.14 mi (4,094.39 km) |
| San Mateo to Jurupa Valley (California) | 365.76 mi (588.64 km) |
| San Mateo to Justice (Illinois) | 1,844.33 mi (2,968.17 km) |
| San Mateo to Kahului (Hawaii) | 2,340.92 mi (3,767.35 km) |
| San Mateo to Kailua (Hawaii) | 2,385.91 mi (3,839.75 km) |
| San Mateo to Kalamazoo (Michigan) | 1,957.84 mi (3,150.84 km) |
