| Kennewick to Castle Pines (Colorado) | 859.28 mi (1,382.88 km) |
| Kennewick to Castle Rock (Colorado) | 863.64 mi (1,389.89 km) |
| Kennewick to Castro Valley (California) | 604.92 mi (973.52 km) |
| Kennewick to Catalina Foothills (Arizona) | 1,056.00 mi (1,699.46 km) |
| Kennewick to Cataño (Puerto Rico) | 3,554.98 mi (5,721.19 km) |
| Kennewick to Cathedral City (California) | 865.90 mi (1,393.54 km) |
| Kennewick to Catonsville (Maryland) | 2,178.78 mi (3,506.40 km) |
| Kennewick to Cave Spring (Virginia) | 2,089.32 mi (3,362.44 km) |
| Kennewick to Cayce (South Carolina) | 2,160.82 mi (3,477.51 km) |
| Kennewick to Cayey (Puerto Rico) | 3,569.88 mi (5,745.17 km) |
| Kennewick to Cedar City (Utah) | 665.58 mi (1,071.14 km) |
| Kennewick to Cedar Falls (Iowa) | 1,337.54 mi (2,152.56 km) |
| Kennewick to Cedar Hill (Texas) | 1,504.99 mi (2,422.05 km) |
| Kennewick to Cedar Lake (Indiana) | 1,606.41 mi (2,585.27 km) |
| Kennewick to Cedar Mill (Oregon) | 180.40 mi (290.33 km) |
