| Norristown to Cadillac (Michigan) | 588.84 mi (947.64 km) |
| Norristown to Caguas (Puerto Rico) | 1,610.85 mi (2,592.41 km) |
| Norristown to Cahokia (Illinois) | 799.24 mi (1,286.25 km) |
| Norristown to Calabasas (California) | 2,398.31 mi (3,859.70 km) |
| Norristown to Caldwell (Idaho) | 2,117.29 mi (3,407.45 km) |
| Norristown to Caledonia (Wisconsin) | 674.21 mi (1,085.04 km) |
| Norristown to Calera (Alabama) | 794.93 mi (1,279.31 km) |
| Norristown to Calexico (California) | 2,271.14 mi (3,655.05 km) |
| Norristown to Calhoun (Georgia) | 654.85 mi (1,053.87 km) |
| Norristown to California (Maryland) | 140.48 mi (226.07 km) |
| Norristown to California City (California) | 2,329.80 mi (3,749.45 km) |
| Norristown to Callaway (Florida) | 898.41 mi (1,445.85 km) |
| Norristown to Calumet City (Illinois) | 645.70 mi (1,039.15 km) |
| Norristown to Calverton (Maryland) | 112.92 mi (181.72 km) |
| Norristown to Camano (Washington) | 2,362.59 mi (3,802.22 km) |
