| Quincy to Clemson (South Carolina) | 823.49 mi (1,325.27 km) |
| Quincy to Clermont (Florida) | 1,121.17 mi (1,804.35 km) |
| Quincy to Cleveland (Mississippi) | 1,219.34 mi (1,962.35 km) |
| Quincy to Cleveland (Ohio) | 550.85 mi (886.51 km) |
| Quincy to Cleveland (Tennessee) | 890.54 mi (1,433.19 km) |
| Quincy to Cleveland Heights (Ohio) | 544.50 mi (876.29 km) |
| Quincy to Cliffside Park (New Jersey) | 182.53 mi (293.75 km) |
| Quincy to Clifton (Colorado) | 1,958.69 mi (3,152.21 km) |
| Quincy to Clifton (New Jersey) | 188.47 mi (303.31 km) |
| Quincy to Clinton (Iowa) | 984.58 mi (1,584.53 km) |
| Quincy to Clinton (Maryland) | 392.50 mi (631.67 km) |
| Quincy to Clinton (Mississippi) | 1,258.41 mi (2,025.21 km) |
| Quincy to Clinton (Utah) | 2,098.41 mi (3,377.06 km) |
| Quincy to Clive (Iowa) | 1,168.21 mi (1,880.05 km) |
| Quincy to Cloquet (Minnesota) | 1,098.71 mi (1,768.20 km) |
