| Knic to Castle Rock (Colorado) | 5,757.63 mi (9,266.01 km) |
| Knic to Castro Valley (California) | 6,335.45 mi (10,195.92 km) |
| Knic to Catalina Foothills (Arizona) | 6,351.27 mi (10,221.38 km) |
| Knic to Cataño (Puerto Rico) | 5,190.30 mi (8,352.98 km) |
| Knic to Cathedral City (California) | 6,427.01 mi (10,343.27 km) |
| Knic to Catonsville (Maryland) | 4,732.53 mi (7,616.27 km) |
| Knic to Cave Spring (Virginia) | 4,958.66 mi (7,980.20 km) |
| Knic to Cayce (South Carolina) | 5,154.47 mi (8,295.31 km) |
| Knic to Cayey (Puerto Rico) | 5,206.12 mi (8,378.44 km) |
| Knic to Cedar City (Utah) | 6,102.25 mi (9,820.62 km) |
| Knic to Cedar Falls (Iowa) | 5,177.70 mi (8,332.70 km) |
| Knic to Cedar Hill (Texas) | 5,855.36 mi (9,423.29 km) |
| Knic to Cedar Lake (Indiana) | 5,053.75 mi (8,133.23 km) |
| Knic to Cedar Mill (Oregon) | 5,864.33 mi (9,437.73 km) |
| Knic to Cedar Park (Texas) | 5,997.90 mi (9,652.69 km) |
