| Simi Valley to Castle Pines (Colorado) | 845.78 mi (1,361.14 km) |
| Simi Valley to Castle Rock (Colorado) | 844.54 mi (1,359.15 km) |
| Simi Valley to Castro Valley (California) | 301.43 mi (485.11 km) |
| Simi Valley to Catalina Foothills (Arizona) | 473.92 mi (762.70 km) |
| Simi Valley to Cataño (Puerto Rico) | 3,395.28 mi (5,464.18 km) |
| Simi Valley to Cathedral City (California) | 134.13 mi (215.86 km) |
| Simi Valley to Catonsville (Maryland) | 2,329.55 mi (3,749.04 km) |
| Simi Valley to Cave Spring (Virginia) | 2,167.05 mi (3,487.52 km) |
| Simi Valley to Cayce (South Carolina) | 2,144.66 mi (3,451.49 km) |
| Simi Valley to Cayey (Puerto Rico) | 3,405.30 mi (5,480.30 km) |
| Simi Valley to Cedar City (Utah) | 394.42 mi (634.75 km) |
| Simi Valley to Cedar Falls (Iowa) | 1,526.07 mi (2,455.98 km) |
| Simi Valley to Cedar Hill (Texas) | 1,259.52 mi (2,027.00 km) |
| Simi Valley to Cedar Lake (Indiana) | 1,767.23 mi (2,844.08 km) |
| Simi Valley to Cedar Mill (Oregon) | 807.41 mi (1,299.40 km) |
