| Isabela to Castle Pines (Colorado) | 2,677.96 mi (4,309.76 km) |
| Isabela to Castle Rock (Colorado) | 2,674.92 mi (4,304.86 km) |
| Isabela to Castro Valley (California) | 3,550.99 mi (5,714.76 km) |
| Isabela to Catalina Foothills (Arizona) | 2,876.11 mi (4,628.66 km) |
| Isabela to Cataño (Puerto Rico) | 57.70 mi (92.85 km) |
| Isabela to Cathedral City (California) | 3,210.10 mi (5,166.16 km) |
| Isabela to Catonsville (Maryland) | 1,548.19 mi (2,491.56 km) |
| Isabela to Cave Spring (Virginia) | 1,514.02 mi (2,436.59 km) |
| Isabela to Cayce (South Carolina) | 1,373.19 mi (2,209.93 km) |
| Isabela to Cayey (Puerto Rico) | 62.28 mi (100.24 km) |
| Isabela to Cedar City (Utah) | 3,066.96 mi (4,935.79 km) |
| Isabela to Cedar Falls (Iowa) | 2,228.69 mi (3,586.73 km) |
| Isabela to Cedar Hill (Texas) | 2,094.05 mi (3,370.04 km) |
| Isabela to Cedar Lake (Indiana) | 1,986.84 mi (3,197.51 km) |
| Isabela to Cedar Mill (Oregon) | 3,670.80 mi (5,907.58 km) |
