| Healdsburg to Cloverleaf (Texas) | 1,687.93 mi (2,716.47 km) |
| Healdsburg to Cloverly (Maryland) | 2,440.81 mi (3,928.11 km) |
| Healdsburg to Clovis (California) | 213.56 mi (343.69 km) |
| Healdsburg to Clovis (New Mexico) | 1,127.38 mi (1,814.34 km) |
| Healdsburg to Clute (Texas) | 1,701.99 mi (2,739.08 km) |
| Healdsburg to Coachella (California) | 506.42 mi (815.01 km) |
| Healdsburg to Coalinga (California) | 220.96 mi (355.59 km) |
| Healdsburg to Coamo (Puerto Rico) | 3,653.12 mi (5,879.13 km) |
| Healdsburg to Coatesville (Pennsylvania) | 2,487.41 mi (4,003.11 km) |
| Healdsburg to Cockeysville (Maryland) | 2,453.79 mi (3,948.99 km) |
| Healdsburg to Cocoa (Florida) | 2,502.70 mi (4,027.71 km) |
| Healdsburg to Cocoa Beach (Florida) | 2,511.83 mi (4,042.40 km) |
| Healdsburg to Coconut Creek (Florida) | 2,604.01 mi (4,190.74 km) |
| Healdsburg to Coeur d'Alene (Idaho) | 697.57 mi (1,122.63 km) |
| Healdsburg to Cohoes (New York) | 2,554.46 mi (4,111.00 km) |
