| Hertford to Cookeville (Tennessee) | 4,130.51 mi (6,647.42 km) |
| Hertford to Coolidge (Arizona) | 5,269.29 mi (8,480.10 km) |
| Hertford to Coon Rapids (Minnesota) | 3,994.05 mi (6,427.80 km) |
| Hertford to Cooper City (Florida) | 4,416.81 mi (7,108.16 km) |
| Hertford to Coos Bay (Oregon) | 5,064.61 mi (8,150.71 km) |
| Hertford to Copiague (New York) | 3,433.85 mi (5,526.25 km) |
| Hertford to Coppell (Texas) | 4,738.77 mi (7,626.31 km) |
| Hertford to Copperas Cove (Texas) | 4,870.53 mi (7,838.36 km) |
| Hertford to Coral Gables (Florida) | 4,433.59 mi (7,135.18 km) |
| Hertford to Coral Springs (Florida) | 4,404.31 mi (7,088.05 km) |
| Hertford to Coral Terrace (Florida) | 4,432.83 mi (7,133.95 km) |
| Hertford to Coralville (Iowa) | 4,097.44 mi (6,594.19 km) |
| Hertford to Coram (New York) | 3,408.99 mi (5,486.24 km) |
| Hertford to Corcoran (California) | 5,353.14 mi (8,615.05 km) |
| Hertford to Cordele (Georgia) | 4,265.40 mi (6,864.50 km) |
