| San Marcos to Glen Burnie (Maryland) | 2,281.96 mi (3,672.45 km) |
| San Marcos to Glen Carbon (Illinois) | 1,563.47 mi (2,516.17 km) |
| San Marcos to Glen Cove (New York) | 2,435.45 mi (3,919.48 km) |
| San Marcos to Glen Ellyn (Illinois) | 1,695.91 mi (2,729.30 km) |
| San Marcos to Glen Rock (New Jersey) | 2,409.40 mi (3,877.55 km) |
| San Marcos to Glendale (Arizona) | 286.89 mi (461.71 km) |
| San Marcos to Glendale (California) | 95.06 mi (152.98 km) |
| San Marcos to Glendale (Wisconsin) | 1,721.57 mi (2,770.60 km) |
| San Marcos to Glendale Heights (Illinois) | 1,695.84 mi (2,729.19 km) |
| San Marcos to Glendora (California) | 79.78 mi (128.39 km) |
| San Marcos to Glenmont (Maryland) | 2,258.64 mi (3,634.94 km) |
| San Marcos to Glenn Dale (Maryland) | 2,271.90 mi (3,656.28 km) |
| San Marcos to Glenn Heights (Texas) | 1,178.38 mi (1,896.43 km) |
| San Marcos to Glenpool (Oklahoma) | 1,217.90 mi (1,960.02 km) |
| San Marcos to Glens Falls (New York) | 2,434.95 mi (3,918.67 km) |
