| Healdsburg to Clemson (South Carolina) | 2,219.15 mi (3,571.37 km) |
| Healdsburg to Clermont (Florida) | 2,446.54 mi (3,937.33 km) |
| Healdsburg to Cleveland (Mississippi) | 1,814.00 mi (2,919.35 km) |
| Healdsburg to Cleveland (Ohio) | 2,166.58 mi (3,486.78 km) |
| Healdsburg to Cleveland (Tennessee) | 2,097.66 mi (3,375.86 km) |
| Healdsburg to Cleveland Heights (Ohio) | 2,172.20 mi (3,495.82 km) |
| Healdsburg to Cliffside Park (New Jersey) | 2,568.03 mi (4,132.84 km) |
| Healdsburg to Clifton (Colorado) | 774.93 mi (1,247.13 km) |
| Healdsburg to Clifton (New Jersey) | 2,558.76 mi (4,117.92 km) |
| Healdsburg to Clinton (Iowa) | 1,724.67 mi (2,775.58 km) |
| Healdsburg to Clinton (Maryland) | 2,451.79 mi (3,945.77 km) |
| Healdsburg to Clinton (Mississippi) | 1,869.86 mi (3,009.25 km) |
| Healdsburg to Clinton (Utah) | 597.96 mi (962.32 km) |
| Healdsburg to Clive (Iowa) | 1,542.24 mi (2,482.00 km) |
| Healdsburg to Cloquet (Minnesota) | 1,629.08 mi (2,621.76 km) |
