| Renton to Castle Pines (Colorado) | 1,026.56 mi (1,652.09 km) |
| Renton to Castle Rock (Colorado) | 1,030.97 mi (1,659.19 km) |
| Renton to Castro Valley (California) | 675.05 mi (1,086.38 km) |
| Renton to Catalina Foothills (Arizona) | 1,204.78 mi (1,938.91 km) |
| Renton to Cataño (Puerto Rico) | 3,714.33 mi (5,977.63 km) |
| Renton to Cathedral City (California) | 988.53 mi (1,590.88 km) |
| Renton to Catonsville (Maryland) | 2,316.94 mi (3,728.75 km) |
| Renton to Cave Spring (Virginia) | 2,236.33 mi (3,599.03 km) |
| Renton to Cayce (South Carolina) | 2,315.59 mi (3,726.58 km) |
| Renton to Cayey (Puerto Rico) | 3,729.50 mi (6,002.05 km) |
| Renton to Cedar City (Utah) | 818.61 mi (1,317.42 km) |
| Renton to Cedar Falls (Iowa) | 1,482.98 mi (2,386.62 km) |
| Renton to Cedar Hill (Texas) | 1,672.76 mi (2,692.04 km) |
| Renton to Cedar Lake (Indiana) | 1,750.27 mi (2,816.79 km) |
| Renton to Cedar Mill (Oregon) | 137.33 mi (221.01 km) |
