| Walnut Creek to Carrollwood (Florida) | 2,370.19 mi (3,814.45 km) |
| Walnut Creek to Carson (California) | 351.74 mi (566.06 km) |
| Walnut Creek to Carson City (Nevada) | 150.98 mi (242.97 km) |
| Walnut Creek to Carteret (New Jersey) | 2,533.61 mi (4,077.44 km) |
| Walnut Creek to Cartersville (Georgia) | 2,082.79 mi (3,351.93 km) |
| Walnut Creek to Carthage (Missouri) | 1,514.10 mi (2,436.70 km) |
| Walnut Creek to Cary (Illinois) | 1,799.54 mi (2,896.07 km) |
| Walnut Creek to Cary (North Carolina) | 2,372.94 mi (3,818.87 km) |
| Walnut Creek to Casa de Oro-Mount Helix (California) | 455.63 mi (733.26 km) |
| Walnut Creek to Casa Grande (Arizona) | 673.27 mi (1,083.53 km) |
| Walnut Creek to Casas Adobes (Arizona) | 731.36 mi (1,177.00 km) |
| Walnut Creek to Cascades (Virginia) | 2,392.05 mi (3,849.63 km) |
| Walnut Creek to Casper (Wyoming) | 893.30 mi (1,437.62 km) |
| Walnut Creek to Casselberry (Florida) | 2,416.41 mi (3,888.83 km) |
| Walnut Creek to Castaic (California) | 303.22 mi (487.99 km) |
