| Castelo Branco to Castle Rock (Colorado) | 4,886.04 mi (7,863.32 km) |
| Castelo Branco to Castro Valley (California) | 5,666.10 mi (9,118.71 km) |
| Castelo Branco to Catalina Foothills (Arizona) | 5,453.84 mi (8,777.11 km) |
| Castelo Branco to Cataño (Puerto Rico) | 3,760.81 mi (6,052.44 km) |
| Castelo Branco to Cathedral City (California) | 5,625.48 mi (9,053.34 km) |
| Castelo Branco to Catonsville (Maryland) | 3,590.98 mi (5,779.12 km) |
| Castelo Branco to Cave Spring (Virginia) | 3,811.55 mi (6,134.10 km) |
| Castelo Branco to Cayce (South Carolina) | 3,969.19 mi (6,387.80 km) |
| Castelo Branco to Cayey (Puerto Rico) | 3,775.02 mi (6,075.31 km) |
| Castelo Branco to Cedar City (Utah) | 5,307.75 mi (8,542.00 km) |
| Castelo Branco to Cedar Falls (Iowa) | 4,224.86 mi (6,799.26 km) |
| Castelo Branco to Cedar Hill (Texas) | 4,798.95 mi (7,723.17 km) |
| Castelo Branco to Cedar Lake (Indiana) | 4,035.42 mi (6,494.38 km) |
| Castelo Branco to Cedar Mill (Oregon) | 5,311.61 mi (8,548.21 km) |
| Castelo Branco to Cedar Park (Texas) | 4,923.05 mi (7,922.89 km) |
