| Poplar Bluff to Cocentaina | 4,697.20 mi (7,559.41 km) |
| Poplar Bluff to Coin | 4,563.37 mi (7,344.04 km) |
| Poplar Bluff to Colindres | 4,405.88 mi (7,090.58 km) |
| Poplar Bluff to Collado-Villalba | 4,468.06 mi (7,190.65 km) |
| Poplar Bluff to Colmenar Viejo | 4,478.47 mi (7,207.41 km) |
| Poplar Bluff to Colmenarejo | 4,470.00 mi (7,193.77 km) |
| Poplar Bluff to Conil de la Frontera | 4,511.83 mi (7,261.09 km) |
| Poplar Bluff to Consuegra | 4,524.97 mi (7,282.24 km) |
| Poplar Bluff to Corbera de Llobregat | 4,712.23 mi (7,583.59 km) |
| Poplar Bluff to Cordoba | 4,521.39 mi (7,276.48 km) |
| Poplar Bluff to Coria del Rio | 4,479.98 mi (7,209.83 km) |
| Poplar Bluff to Crevillente | 4,697.25 mi (7,559.49 km) |
| Poplar Bluff to Cuarte de Huerva | 4,578.51 mi (7,368.39 km) |
| Poplar Bluff to Cubellas | 4,707.93 mi (7,576.67 km) |
| Poplar Bluff to Cuellar | 4,429.41 mi (7,128.45 km) |
