| Walnut Creek to Clemson (South Carolina) | 2,179.78 mi (3,508.02 km) |
| Walnut Creek to Clermont (Florida) | 2,398.65 mi (3,860.25 km) |
| Walnut Creek to Cleveland (Mississippi) | 1,769.03 mi (2,846.97 km) |
| Walnut Creek to Cleveland (Ohio) | 2,140.48 mi (3,444.76 km) |
| Walnut Creek to Cleveland (Tennessee) | 2,058.22 mi (3,312.39 km) |
| Walnut Creek to Cleveland Heights (Ohio) | 2,146.19 mi (3,453.96 km) |
| Walnut Creek to Cliffside Park (New Jersey) | 2,542.63 mi (4,091.96 km) |
| Walnut Creek to Clifton (Colorado) | 738.15 mi (1,187.94 km) |
| Walnut Creek to Clifton (New Jersey) | 2,533.38 mi (4,077.08 km) |
| Walnut Creek to Clinton (Iowa) | 1,698.08 mi (2,732.80 km) |
| Walnut Creek to Clinton (Maryland) | 2,421.83 mi (3,897.56 km) |
| Walnut Creek to Clinton (Mississippi) | 1,822.62 mi (2,933.23 km) |
| Walnut Creek to Clinton (Utah) | 576.30 mi (927.46 km) |
| Walnut Creek to Clive (Iowa) | 1,514.84 mi (2,437.90 km) |
| Walnut Creek to Cloquet (Minnesota) | 1,616.07 mi (2,600.82 km) |
