| Quincy to Cordele (Georgia) | 997.61 mi (1,605.50 km) |
| Quincy to Corinth (Mississippi) | 1,068.14 mi (1,719.00 km) |
| Quincy to Corinth (Texas) | 1,548.86 mi (2,492.65 km) |
| Quincy to Cornelius (North Carolina) | 706.85 mi (1,137.57 km) |
| Quincy to Cornelius (Oregon) | 2,555.32 mi (4,112.40 km) |
| Quincy to Corning (New York) | 309.05 mi (497.36 km) |
| Quincy to Corona (California) | 2,564.67 mi (4,127.44 km) |
| Quincy to Coronado (California) | 2,582.51 mi (4,156.15 km) |
| Quincy to Corpus Christi (Texas) | 1,786.24 mi (2,874.68 km) |
| Quincy to Corsicana (Texas) | 1,559.10 mi (2,509.13 km) |
| Quincy to Cortland (New York) | 264.22 mi (425.22 km) |
| Quincy to Corvallis (Oregon) | 2,582.70 mi (4,156.46 km) |
| Quincy to Coshocton (Ohio) | 578.59 mi (931.16 km) |
| Quincy to Costa Mesa (California) | 2,588.63 mi (4,166.01 km) |
| Quincy to Coto de Caza (California) | 2,574.15 mi (4,142.69 km) |
