| San Marcos to Hillcrest Heights (Maryland) | 2,263.76 mi (3,643.16 km) |
| San Marcos to Hilliard (Ohio) | 1,933.81 mi (3,112.17 km) |
| San Marcos to Hillsboro (Oregon) | 909.28 mi (1,463.34 km) |
| San Marcos to Hillsborough (California) | 422.61 mi (680.12 km) |
| San Marcos to Hillsborough (New Jersey) | 2,382.53 mi (3,834.30 km) |
| San Marcos to Hilo (Hawaii) | 2,506.32 mi (4,033.53 km) |
| San Marcos to Hilton Head Island (South Carolina) | 2,108.99 mi (3,394.09 km) |
| San Marcos to Hinesville (Georgia) | 2,064.71 mi (3,322.83 km) |
| San Marcos to Hinsdale (Illinois) | 1,701.88 mi (2,738.90 km) |
| San Marcos to Hobart (Indiana) | 1,731.54 mi (2,786.64 km) |
| San Marcos to Hobbs (New Mexico) | 812.59 mi (1,307.74 km) |
| San Marcos to Hobe Sound (Florida) | 2,240.93 mi (3,606.43 km) |
| San Marcos to Hoboken (New Jersey) | 2,414.81 mi (3,886.27 km) |
| San Marcos to Hockessin (Delaware) | 2,329.68 mi (3,749.26 km) |
| San Marcos to Hoffman Estates (Illinois) | 1,694.41 mi (2,726.89 km) |
