| Idil to Castle Rock (Colorado) | 6,731.02 mi (10,832.53 km) |
| Idil to Castro Valley (California) | 7,151.31 mi (11,508.92 km) |
| Idil to Catalina Foothills (Arizona) | 7,314.67 mi (11,771.82 km) |
| Idil to Cataño (Puerto Rico) | 6,383.56 mi (10,273.35 km) |
| Idil to Cathedral City (California) | 7,325.76 mi (11,789.66 km) |
| Idil to Catonsville (Maryland) | 5,866.03 mi (9,440.46 km) |
| Idil to Cave Spring (Virginia) | 6,090.13 mi (9,801.13 km) |
| Idil to Cayce (South Carolina) | 6,297.15 mi (10,134.29 km) |
| Idil to Cayey (Puerto Rico) | 6,399.08 mi (10,298.32 km) |
| Idil to Cedar City (Utah) | 7,013.14 mi (11,286.55 km) |
| Idil to Cedar Falls (Iowa) | 6,217.09 mi (10,005.44 km) |
| Idil to Cedar Hill (Texas) | 6,926.20 mi (11,146.65 km) |
| Idil to Cedar Lake (Indiana) | 6,128.48 mi (9,862.83 km) |
| Idil to Cedar Mill (Oregon) | 6,631.88 mi (10,672.97 km) |
| Idil to Cedar Park (Texas) | 7,074.41 mi (11,385.17 km) |
