| Howard to Conyers (Georgia) | 784.57 mi (1,262.64 km) |
| Howard to Cookeville (Tennessee) | 597.49 mi (961.56 km) |
| Howard to Coolidge (Arizona) | 1,488.43 mi (2,395.39 km) |
| Howard to Coon Rapids (Minnesota) | 258.78 mi (416.47 km) |
| Howard to Cooper City (Florida) | 1,351.85 mi (2,175.59 km) |
| Howard to Coos Bay (Oregon) | 1,784.14 mi (2,871.30 km) |
| Howard to Copiague (New York) | 793.13 mi (1,276.42 km) |
| Howard to Coppell (Texas) | 932.92 mi (1,501.39 km) |
| Howard to Copperas Cove (Texas) | 1,070.94 mi (1,723.51 km) |
| Howard to Coral Gables (Florida) | 1,374.79 mi (2,212.51 km) |
| Howard to Coral Springs (Florida) | 1,337.54 mi (2,152.56 km) |
| Howard to Coral Terrace (Florida) | 1,371.37 mi (2,207.00 km) |
| Howard to Coralville (Iowa) | 265.60 mi (427.44 km) |
| Howard to Coram (New York) | 805.65 mi (1,296.57 km) |
| Howard to Corcoran (California) | 1,745.32 mi (2,808.81 km) |
