| Seal Beach to Castle Pines (Colorado) | 830.42 mi (1,336.42 km) |
| Seal Beach to Castle Rock (Colorado) | 828.82 mi (1,333.86 km) |
| Seal Beach to Castro Valley (California) | 353.15 mi (568.33 km) |
| Seal Beach to Catalina Foothills (Arizona) | 428.13 mi (689.01 km) |
| Seal Beach to Cataño (Puerto Rico) | 3,353.67 mi (5,397.20 km) |
| Seal Beach to Cathedral City (California) | 92.46 mi (148.79 km) |
| Seal Beach to Catonsville (Maryland) | 2,306.28 mi (3,711.60 km) |
| Seal Beach to Cave Spring (Virginia) | 2,140.38 mi (3,444.61 km) |
| Seal Beach to Cayce (South Carolina) | 2,113.01 mi (3,400.56 km) |
| Seal Beach to Cayey (Puerto Rico) | 3,363.47 mi (5,412.99 km) |
| Seal Beach to Cedar City (Utah) | 389.25 mi (626.44 km) |
| Seal Beach to Cedar Falls (Iowa) | 1,510.54 mi (2,430.98 km) |
| Seal Beach to Cedar Hill (Texas) | 1,221.61 mi (1,965.99 km) |
| Seal Beach to Cedar Lake (Indiana) | 1,747.82 mi (2,812.84 km) |
| Seal Beach to Cedar Mill (Oregon) | 851.60 mi (1,370.51 km) |
