| Quincy to Carlsbad (California) | 2,573.80 mi (4,142.12 km) |
| Quincy to Carlsbad (New Mexico) | 1,933.14 mi (3,111.09 km) |
| Quincy to Carmel (Indiana) | 802.06 mi (1,290.80 km) |
| Quincy to Carmichael (California) | 2,618.72 mi (4,214.43 km) |
| Quincy to Carney (Maryland) | 348.43 mi (560.74 km) |
| Quincy to Carnot-Moon (Pennsylvania) | 491.39 mi (790.81 km) |
| Quincy to Carol Stream (Illinois) | 876.30 mi (1,410.27 km) |
| Quincy to Carolina (Puerto Rico) | 1,673.93 mi (2,693.93 km) |
| Quincy to Carolina Forest (South Carolina) | 726.20 mi (1,168.71 km) |
| Quincy to Carpentersville (Illinois) | 882.72 mi (1,420.60 km) |
| Quincy to Carpinteria (California) | 2,647.36 mi (4,260.51 km) |
| Quincy to Carrboro (North Carolina) | 614.44 mi (988.84 km) |
| Quincy to Carroll (Iowa) | 1,217.37 mi (1,959.17 km) |
| Quincy to Carrollton (Georgia) | 970.69 mi (1,562.18 km) |
| Quincy to Carrollton (Texas) | 1,546.18 mi (2,488.34 km) |
