| Idylwood to Cullman (Alabama) | 625.67 mi (1,006.92 km) |
| Idylwood to Culpeper (Virginia) | 51.72 mi (83.24 km) |
| Idylwood to Culver City (California) | 2,294.49 mi (3,692.63 km) |
| Idylwood to Cumberland (Maryland) | 98.33 mi (158.25 km) |
| Idylwood to Cupertino (California) | 2,415.67 mi (3,887.64 km) |
| Idylwood to Cutler Bay (Florida) | 937.68 mi (1,509.05 km) |
| Idylwood to Cutlerville (Michigan) | 519.50 mi (836.05 km) |
| Idylwood to Cuyahoga Falls (Ohio) | 277.11 mi (445.96 km) |
| Idylwood to Cypress (California) | 2,279.90 mi (3,669.14 km) |
| Idylwood to Cypress Gardens (Florida) | 794.96 mi (1,279.37 km) |
| Idylwood to Cypress Lake (Florida) | 895.54 mi (1,441.23 km) |
| Idylwood to D'Iberville (Mississippi) | 881.76 mi (1,419.05 km) |
| Idylwood to Dakota Ridge (Colorado) | 1,489.07 mi (2,396.42 km) |
| Idylwood to Dale City (Virginia) | 18.37 mi (29.56 km) |
| Idylwood to Dallas (Georgia) | 545.95 mi (878.62 km) |
