| Opelika to Conyers (Georgia) | 105.73 mi (170.16 km) |
| Opelika to Cookeville (Tennessee) | 241.05 mi (387.93 km) |
| Opelika to Coolidge (Arizona) | 1,514.86 mi (2,437.92 km) |
| Opelika to Coon Rapids (Minnesota) | 962.92 mi (1,549.67 km) |
| Opelika to Cooper City (Florida) | 550.15 mi (885.37 km) |
| Opelika to Coos Bay (Oregon) | 2,217.63 mi (3,568.94 km) |
| Opelika to Copiague (New York) | 863.10 mi (1,389.03 km) |
| Opelika to Coppell (Texas) | 674.36 mi (1,085.29 km) |
| Opelika to Copperas Cove (Texas) | 742.71 mi (1,195.27 km) |
| Opelika to Coral Gables (Florida) | 570.70 mi (918.45 km) |
| Opelika to Coral Springs (Florida) | 538.11 mi (866.01 km) |
| Opelika to Coral Terrace (Florida) | 567.10 mi (912.65 km) |
| Opelika to Coralville (Iowa) | 711.67 mi (1,145.32 km) |
| Opelika to Coram (New York) | 888.00 mi (1,429.10 km) |
| Opelika to Corcoran (California) | 1,953.72 mi (3,144.20 km) |
