| Alenquer to Carson (California) | 5,669.33 mi (9,123.91 km) |
| Alenquer to Carson City (Nevada) | 5,483.47 mi (8,824.80 km) |
| Alenquer to Carteret (New Jersey) | 3,379.92 mi (5,439.45 km) |
| Alenquer to Cartersville (Georgia) | 4,092.42 mi (6,586.11 km) |
| Alenquer to Carthage (Missouri) | 4,453.86 mi (7,167.79 km) |
| Alenquer to Cary (Illinois) | 4,003.56 mi (6,443.10 km) |
| Alenquer to Cary (North Carolina) | 3,740.38 mi (6,019.56 km) |
| Alenquer to Casa de Oro-Mount Helix (California) | 5,663.71 mi (9,114.85 km) |
| Alenquer to Casa Grande (Arizona) | 5,427.67 mi (8,734.98 km) |
| Alenquer to Casas Adobes (Arizona) | 5,418.53 mi (8,720.27 km) |
| Alenquer to Cascades (Virginia) | 3,575.13 mi (5,753.62 km) |
| Alenquer to Casper (Wyoming) | 4,777.51 mi (7,688.66 km) |
| Alenquer to Casselberry (Florida) | 4,102.96 mi (6,603.07 km) |
| Alenquer to Castaic (California) | 5,655.26 mi (9,101.26 km) |
| Alenquer to Castle Pines (Colorado) | 4,848.16 mi (7,802.35 km) |
