| Quincy to Carrollwood (Florida) | 1,173.69 mi (1,888.87 km) |
| Quincy to Carson (California) | 2,600.73 mi (4,185.47 km) |
| Quincy to Carson City (Nevada) | 2,526.58 mi (4,066.15 km) |
| Quincy to Carteret (New Jersey) | 202.22 mi (325.44 km) |
| Quincy to Cartersville (Georgia) | 931.85 mi (1,499.67 km) |
| Quincy to Carthage (Missouri) | 1,283.38 mi (2,065.41 km) |
| Quincy to Cary (Illinois) | 880.00 mi (1,416.22 km) |
| Quincy to Cary (North Carolina) | 611.94 mi (984.82 km) |
| Quincy to Casa de Oro-Mount Helix (California) | 2,569.45 mi (4,135.14 km) |
| Quincy to Casa Grande (Arizona) | 2,298.58 mi (3,699.21 km) |
| Quincy to Casas Adobes (Arizona) | 2,278.95 mi (3,667.62 km) |
| Quincy to Cascades (Virginia) | 400.42 mi (644.41 km) |
| Quincy to Casper (Wyoming) | 1,784.19 mi (2,871.38 km) |
| Quincy to Casselberry (Florida) | 1,101.54 mi (1,772.75 km) |
| Quincy to Castaic (California) | 2,599.84 mi (4,184.03 km) |
