| San Marcos to Madison (Mississippi) | 1,566.89 mi (2,521.67 km) |
| San Marcos to Madison (New Jersey) | 2,394.45 mi (3,853.49 km) |
| San Marcos to Madison (Wisconsin) | 1,649.22 mi (2,654.17 km) |
| San Marcos to Madison Heights (Michigan) | 1,953.60 mi (3,144.01 km) |
| San Marcos to Madison Heights (Virginia) | 2,152.79 mi (3,464.58 km) |
| San Marcos to Madisonville (Kentucky) | 1,692.27 mi (2,723.45 km) |
| San Marcos to Magalia (California) | 523.45 mi (842.40 km) |
| San Marcos to Magna (Utah) | 595.10 mi (957.72 km) |
| San Marcos to Magnolia (Arkansas) | 1,381.44 mi (2,223.21 km) |
| San Marcos to Maili (Hawaii) | 2,625.87 mi (4,225.94 km) |
| San Marcos to Maitland (Florida) | 2,135.31 mi (3,436.45 km) |
| San Marcos to Makakilo (Hawaii) | 2,622.47 mi (4,220.46 km) |
| San Marcos to Malden (Massachusetts) | 2,565.62 mi (4,128.97 km) |
| San Marcos to Malibu (California) | 111.65 mi (179.69 km) |
| San Marcos to Maltby (Washington) | 1,045.48 mi (1,682.54 km) |
