| Sedro-Woolley to Cadillac (Michigan) | 1,761.78 mi (2,835.30 km) |
| Sedro-Woolley to Caguas (Puerto Rico) | 3,747.32 mi (6,030.73 km) |
| Sedro-Woolley to Cahokia (Illinois) | 1,730.14 mi (2,784.39 km) |
| Sedro-Woolley to Calabasas (California) | 1,009.89 mi (1,625.26 km) |
| Sedro-Woolley to Caldwell (Idaho) | 429.14 mi (690.63 km) |
| Sedro-Woolley to Caledonia (Wisconsin) | 1,690.17 mi (2,720.07 km) |
| Sedro-Woolley to Calera (Alabama) | 2,111.44 mi (3,398.04 km) |
| Sedro-Woolley to Calexico (California) | 1,148.06 mi (1,847.63 km) |
| Sedro-Woolley to Calhoun (Georgia) | 2,131.07 mi (3,429.62 km) |
| Sedro-Woolley to California (Maryland) | 2,362.78 mi (3,802.52 km) |
| Sedro-Woolley to California City (California) | 949.12 mi (1,527.47 km) |
| Sedro-Woolley to Callaway (Florida) | 2,302.42 mi (3,705.38 km) |
| Sedro-Woolley to Calumet City (Illinois) | 1,741.76 mi (2,803.09 km) |
| Sedro-Woolley to Calverton (Maryland) | 2,314.19 mi (3,724.32 km) |
| Sedro-Woolley to Camano (Washington) | 24.97 mi (40.18 km) |
