| Sedro-Woolley to Cordele (Georgia) | 2,295.20 mi (3,693.77 km) |
| Sedro-Woolley to Corinth (Mississippi) | 1,952.94 mi (3,142.96 km) |
| Sedro-Woolley to Corinth (Texas) | 1,677.06 mi (2,698.97 km) |
| Sedro-Woolley to Cornelius (North Carolina) | 2,272.55 mi (3,657.32 km) |
| Sedro-Woolley to Cornelius (Oregon) | 210.32 mi (338.48 km) |
| Sedro-Woolley to Corning (New York) | 2,204.56 mi (3,547.90 km) |
| Sedro-Woolley to Corona (California) | 1,040.36 mi (1,674.30 km) |
| Sedro-Woolley to Coronado (California) | 1,126.10 mi (1,812.28 km) |
| Sedro-Woolley to Corpus Christi (Texas) | 1,954.36 mi (3,145.23 km) |
| Sedro-Woolley to Corsicana (Texas) | 1,754.68 mi (2,823.88 km) |
| Sedro-Woolley to Cortland (New York) | 2,230.27 mi (3,589.27 km) |
| Sedro-Woolley to Corvallis (Oregon) | 276.82 mi (445.49 km) |
| Sedro-Woolley to Coshocton (Ohio) | 2,047.58 mi (3,295.26 km) |
| Sedro-Woolley to Costa Mesa (California) | 1,049.57 mi (1,689.12 km) |
| Sedro-Woolley to Coto de Caza (California) | 1,058.08 mi (1,702.81 km) |
