| Northampton to Carson (California) | 5,395.62 mi (8,683.42 km) |
| Northampton to Carson City (Nevada) | 5,136.63 mi (8,266.60 km) |
| Northampton to Carteret (New Jersey) | 3,429.41 mi (5,519.10 km) |
| Northampton to Cartersville (Georgia) | 4,156.10 mi (6,688.60 km) |
| Northampton to Carthage (Missouri) | 4,378.65 mi (7,046.75 km) |
| Northampton to Cary (Illinois) | 3,903.27 mi (6,281.70 km) |
| Northampton to Cary (North Carolina) | 3,835.99 mi (6,173.44 km) |
| Northampton to Casa de Oro-Mount Helix (California) | 5,415.59 mi (8,715.55 km) |
| Northampton to Casa Grande (Arizona) | 5,233.34 mi (8,422.24 km) |
| Northampton to Casas Adobes (Arizona) | 5,238.91 mi (8,431.21 km) |
| Northampton to Cascades (Virginia) | 3,625.91 mi (5,835.34 km) |
| Northampton to Casper (Wyoming) | 4,511.01 mi (7,259.78 km) |
| Northampton to Casselberry (Florida) | 4,288.04 mi (6,900.94 km) |
| Northampton to Castaic (California) | 5,370.53 mi (8,643.02 km) |
| Northampton to Castle Pines (Colorado) | 4,640.14 mi (7,467.59 km) |
