| McDonough to Conyers (Georgia) | 17.89 mi (28.79 km) |
| McDonough to Cookeville (Tennessee) | 202.43 mi (325.77 km) |
| McDonough to Coolidge (Arizona) | 1,578.68 mi (2,540.64 km) |
| McDonough to Coon Rapids (Minnesota) | 945.79 mi (1,522.10 km) |
| McDonough to Cooper City (Florida) | 560.84 mi (902.58 km) |
| McDonough to Coos Bay (Oregon) | 2,251.85 mi (3,624.01 km) |
| McDonough to Copiague (New York) | 774.52 mi (1,246.46 km) |
| McDonough to Coppell (Texas) | 742.57 mi (1,195.05 km) |
| McDonough to Copperas Cove (Texas) | 819.17 mi (1,318.32 km) |
| McDonough to Coral Gables (Florida) | 582.98 mi (938.21 km) |
| McDonough to Coral Springs (Florida) | 547.37 mi (880.91 km) |
| McDonough to Coral Terrace (Florida) | 579.46 mi (932.55 km) |
| McDonough to Coralville (Iowa) | 700.76 mi (1,127.76 km) |
| McDonough to Coram (New York) | 799.41 mi (1,286.53 km) |
| McDonough to Corcoran (California) | 2,007.23 mi (3,230.32 km) |
