| Healdsburg to Carrollwood (Florida) | 2,419.13 mi (3,893.21 km) |
| Healdsburg to Carson (California) | 418.55 mi (673.59 km) |
| Healdsburg to Carson City (Nevada) | 171.59 mi (276.14 km) |
| Healdsburg to Carteret (New Jersey) | 2,559.49 mi (4,119.11 km) |
| Healdsburg to Cartersville (Georgia) | 2,123.99 mi (3,418.23 km) |
| Healdsburg to Carthage (Missouri) | 1,553.50 mi (2,500.11 km) |
| Healdsburg to Cary (Illinois) | 1,825.02 mi (2,937.09 km) |
| Healdsburg to Cary (North Carolina) | 2,408.70 mi (3,876.43 km) |
| Healdsburg to Casa de Oro-Mount Helix (California) | 522.53 mi (840.94 km) |
| Healdsburg to Casa Grande (Arizona) | 736.32 mi (1,185.00 km) |
| Healdsburg to Casas Adobes (Arizona) | 794.61 mi (1,278.80 km) |
| Healdsburg to Cascades (Virginia) | 2,421.64 mi (3,897.26 km) |
| Healdsburg to Casper (Wyoming) | 912.13 mi (1,467.94 km) |
| Healdsburg to Casselberry (Florida) | 2,463.91 mi (3,965.29 km) |
| Healdsburg to Castaic (California) | 370.12 mi (595.65 km) |
