| Walnut Creek to Cullman (Alabama) | 1,971.57 mi (3,172.93 km) |
| Walnut Creek to Culpeper (Virginia) | 2,368.71 mi (3,812.08 km) |
| Walnut Creek to Culver City (California) | 337.57 mi (543.27 km) |
| Walnut Creek to Cumberland (Maryland) | 2,311.78 mi (3,720.44 km) |
| Walnut Creek to Cupertino (California) | 40.46 mi (65.12 km) |
| Walnut Creek to Cutler Bay (Florida) | 2,569.90 mi (4,135.86 km) |
| Walnut Creek to Cutlerville (Michigan) | 1,929.06 mi (3,104.52 km) |
| Walnut Creek to Cuyahoga Falls (Ohio) | 2,151.41 mi (3,462.37 km) |
| Walnut Creek to Cypress (California) | 360.30 mi (579.85 km) |
| Walnut Creek to Cypress Gardens (Florida) | 2,416.94 mi (3,889.69 km) |
| Walnut Creek to Cypress Lake (Florida) | 2,452.68 mi (3,947.21 km) |
| Walnut Creek to D'Iberville (Mississippi) | 1,951.10 mi (3,139.99 km) |
| Walnut Creek to Dakota Ridge (Colorado) | 917.11 mi (1,475.95 km) |
| Walnut Creek to Dale City (Virginia) | 2,400.36 mi (3,863.00 km) |
| Walnut Creek to Dallas (Georgia) | 2,085.97 mi (3,357.05 km) |
