| Quincy to Clarksdale (Mississippi) | 1,194.40 mi (1,922.21 km) |
| Quincy to Clarkston (Georgia) | 924.23 mi (1,487.41 km) |
| Quincy to Clarksville (Indiana) | 822.06 mi (1,322.98 km) |
| Quincy to Clarksville (Tennessee) | 953.62 mi (1,534.70 km) |
| Quincy to Clawson (Michigan) | 618.84 mi (995.92 km) |
| Quincy to Clay (Alabama) | 1,031.99 mi (1,660.82 km) |
| Quincy to Clayton (California) | 2,667.25 mi (4,292.52 km) |
| Quincy to Clayton (Missouri) | 1,043.03 mi (1,678.60 km) |
| Quincy to Clayton (North Carolina) | 605.17 mi (973.93 km) |
| Quincy to Clayton (Ohio) | 711.89 mi (1,145.68 km) |
| Quincy to Clearfield (Utah) | 2,097.01 mi (3,374.81 km) |
| Quincy to Clearlake (California) | 2,675.52 mi (4,305.84 km) |
| Quincy to Clearwater (Florida) | 1,186.04 mi (1,908.74 km) |
| Quincy to Cleburne (Texas) | 1,594.90 mi (2,566.74 km) |
| Quincy to Clemmons (North Carolina) | 660.03 mi (1,062.22 km) |
