| Healdsburg to Conyers (Georgia) | 2,179.13 mi (3,506.97 km) |
| Healdsburg to Cookeville (Tennessee) | 2,043.72 mi (3,289.05 km) |
| Healdsburg to Coolidge (Arizona) | 746.37 mi (1,201.17 km) |
| Healdsburg to Coon Rapids (Minnesota) | 1,575.96 mi (2,536.27 km) |
| Healdsburg to Cooper City (Florida) | 2,606.64 mi (4,194.99 km) |
| Healdsburg to Coos Bay (Oregon) | 336.28 mi (541.19 km) |
| Healdsburg to Copiague (New York) | 2,600.78 mi (4,185.55 km) |
| Healdsburg to Coppell (Texas) | 1,496.32 mi (2,408.09 km) |
| Healdsburg to Copperas Cove (Texas) | 1,500.61 mi (2,414.99 km) |
| Healdsburg to Coral Gables (Florida) | 2,619.42 mi (4,215.55 km) |
| Healdsburg to Coral Springs (Florida) | 2,600.34 mi (4,184.84 km) |
| Healdsburg to Coral Terrace (Florida) | 2,616.13 mi (4,210.26 km) |
| Healdsburg to Coralville (Iowa) | 1,655.51 mi (2,664.28 km) |
| Healdsburg to Coram (New York) | 2,617.06 mi (4,211.75 km) |
| Healdsburg to Corcoran (California) | 252.32 mi (406.07 km) |
