| Penwortham to Cookeville (Tennessee) | 3,980.96 mi (6,406.73 km) |
| Penwortham to Coolidge (Arizona) | 5,101.53 mi (8,210.11 km) |
| Penwortham to Coon Rapids (Minnesota) | 3,828.82 mi (6,161.90 km) |
| Penwortham to Cooper City (Florida) | 4,288.25 mi (6,901.27 km) |
| Penwortham to Coos Bay (Oregon) | 4,890.76 mi (7,870.92 km) |
| Penwortham to Copiague (New York) | 3,290.60 mi (5,295.71 km) |
| Penwortham to Coppell (Texas) | 4,581.58 mi (7,373.33 km) |
| Penwortham to Copperas Cove (Texas) | 4,714.18 mi (7,586.73 km) |
| Penwortham to Coral Gables (Florida) | 4,305.58 mi (6,929.17 km) |
| Penwortham to Coral Springs (Florida) | 4,275.45 mi (6,880.68 km) |
| Penwortham to Coral Terrace (Florida) | 4,304.70 mi (6,927.75 km) |
| Penwortham to Coralville (Iowa) | 3,936.38 mi (6,334.99 km) |
| Penwortham to Coram (New York) | 3,265.80 mi (5,255.79 km) |
| Penwortham to Corcoran (California) | 5,180.87 mi (8,337.81 km) |
| Penwortham to Cordele (Georgia) | 4,123.40 mi (6,635.97 km) |
