| Walnut Creek to Crawfordsville (Indiana) | 1,881.26 mi (3,027.59 km) |
| Walnut Creek to Crest Hill (Illinois) | 1,808.56 mi (2,910.60 km) |
| Walnut Creek to Crestview (Florida) | 2,069.65 mi (3,330.77 km) |
| Walnut Creek to Crestwood (Illinois) | 1,827.49 mi (2,941.07 km) |
| Walnut Creek to Crestwood (Missouri) | 1,710.49 mi (2,752.78 km) |
| Walnut Creek to Creve Coeur (Missouri) | 1,705.98 mi (2,745.51 km) |
| Walnut Creek to Crofton (Maryland) | 2,429.57 mi (3,910.02 km) |
| Walnut Creek to Crossville (Tennessee) | 2,035.24 mi (3,275.40 km) |
| Walnut Creek to Crowley (Louisiana) | 1,770.42 mi (2,849.22 km) |
| Walnut Creek to Crowley (Texas) | 1,435.84 mi (2,310.77 km) |
| Walnut Creek to Crown Point (Indiana) | 1,848.85 mi (2,975.44 km) |
| Walnut Creek to Crystal (Minnesota) | 1,554.93 mi (2,502.41 km) |
| Walnut Creek to Crystal Lake (Illinois) | 1,795.11 mi (2,888.95 km) |
| Walnut Creek to Cudahy (California) | 347.26 mi (558.86 km) |
| Walnut Creek to Cudahy (Wisconsin) | 1,818.02 mi (2,925.83 km) |
