| Glenmont to Clemson (South Carolina) | 439.57 mi (707.42 km) |
| Glenmont to Clermont (Florida) | 775.63 mi (1,248.25 km) |
| Glenmont to Cleveland (Mississippi) | 843.91 mi (1,358.14 km) |
| Glenmont to Cleveland (Ohio) | 295.43 mi (475.45 km) |
| Glenmont to Cleveland (Tennessee) | 507.59 mi (816.88 km) |
| Glenmont to Cleveland Heights (Ohio) | 291.70 mi (469.44 km) |
| Glenmont to Cliffside Park (New Jersey) | 202.25 mi (325.48 km) |
| Glenmont to Clifton (Colorado) | 1,676.51 mi (2,698.09 km) |
| Glenmont to Clifton (New Jersey) | 196.85 mi (316.80 km) |
| Glenmont to Clinton (Iowa) | 718.83 mi (1,156.84 km) |
| Glenmont to Clinton (Maryland) | 23.36 mi (37.59 km) |
| Glenmont to Clinton (Mississippi) | 876.94 mi (1,411.30 km) |
| Glenmont to Clinton (Utah) | 1,843.70 mi (2,967.15 km) |
| Glenmont to Clive (Iowa) | 897.99 mi (1,445.18 km) |
| Glenmont to Cloquet (Minnesota) | 941.17 mi (1,514.66 km) |
