| Wilmette to Castle Pines (Colorado) | 913.37 mi (1,469.93 km) |
| Wilmette to Castle Rock (Colorado) | 914.25 mi (1,471.34 km) |
| Wilmette to Castro Valley (California) | 1,832.35 mi (2,948.88 km) |
| Wilmette to Catalina Foothills (Arizona) | 1,435.76 mi (2,310.63 km) |
| Wilmette to Cataño (Puerto Rico) | 2,067.37 mi (3,327.12 km) |
| Wilmette to Cathedral City (California) | 1,656.30 mi (2,665.56 km) |
| Wilmette to Catonsville (Maryland) | 607.09 mi (977.02 km) |
| Wilmette to Cave Spring (Virginia) | 529.78 mi (852.60 km) |
| Wilmette to Cayce (South Carolina) | 668.87 mi (1,076.45 km) |
| Wilmette to Cayey (Puerto Rico) | 2,085.38 mi (3,356.09 km) |
| Wilmette to Cedar City (Utah) | 1,373.39 mi (2,210.26 km) |
| Wilmette to Cedar Falls (Iowa) | 243.39 mi (391.69 km) |
| Wilmette to Cedar Hill (Texas) | 828.17 mi (1,332.81 km) |
| Wilmette to Cedar Lake (Indiana) | 51.11 mi (82.25 km) |
| Wilmette to Cedar Mill (Oregon) | 1,750.90 mi (2,817.80 km) |
