| Holt to Castle Pines (Colorado) | 1,079.51 mi (1,737.30 km) |
| Holt to Castle Rock (Colorado) | 1,080.53 mi (1,738.94 km) |
| Holt to Castro Valley (California) | 1,993.72 mi (3,208.59 km) |
| Holt to Catalina Foothills (Arizona) | 1,602.77 mi (2,579.40 km) |
| Holt to Cataño (Puerto Rico) | 1,988.59 mi (3,200.32 km) |
| Holt to Cathedral City (California) | 1,823.77 mi (2,935.08 km) |
| Holt to Catonsville (Maryland) | 468.35 mi (753.74 km) |
| Holt to Cave Spring (Virginia) | 444.22 mi (714.91 km) |
| Holt to Cayce (South Carolina) | 629.72 mi (1,013.44 km) |
| Holt to Cayey (Puerto Rico) | 2,007.54 mi (3,230.83 km) |
| Holt to Cedar City (Utah) | 1,538.84 mi (2,476.52 km) |
| Holt to Cedar Falls (Iowa) | 403.02 mi (648.59 km) |
| Holt to Cedar Hill (Texas) | 970.53 mi (1,561.92 km) |
| Holt to Cedar Lake (Indiana) | 173.24 mi (278.80 km) |
| Holt to Cedar Mill (Oregon) | 1,891.61 mi (3,044.25 km) |
