| Norristown to Castle Pines (Colorado) | 1,561.19 mi (2,512.49 km) |
| Norristown to Castle Rock (Colorado) | 1,561.46 mi (2,512.93 km) |
| Norristown to Castro Valley (California) | 2,488.33 mi (4,004.58 km) |
| Norristown to Catalina Foothills (Arizona) | 2,038.88 mi (3,281.26 km) |
| Norristown to Cataño (Puerto Rico) | 1,595.20 mi (2,567.23 km) |
| Norristown to Cathedral City (California) | 2,290.15 mi (3,685.63 km) |
| Norristown to Catonsville (Maryland) | 95.26 mi (153.30 km) |
| Norristown to Cave Spring (Virginia) | 321.56 mi (517.51 km) |
| Norristown to Cayce (South Carolina) | 529.89 mi (852.77 km) |
| Norristown to Cayey (Puerto Rico) | 1,616.00 mi (2,600.71 km) |
| Norristown to Cedar City (Utah) | 2,021.83 mi (3,253.83 km) |
| Norristown to Cedar Falls (Iowa) | 901.72 mi (1,451.18 km) |
| Norristown to Cedar Hill (Texas) | 1,306.63 mi (2,102.81 km) |
| Norristown to Cedar Lake (Indiana) | 638.63 mi (1,027.78 km) |
| Norristown to Cedar Mill (Oregon) | 2,398.20 mi (3,859.53 km) |
