| Lake Oswego to Cloverleaf (Texas) | 1,838.61 mi (2,958.96 km) |
| Lake Oswego to Cloverly (Maryland) | 2,344.76 mi (3,773.53 km) |
| Lake Oswego to Clovis (California) | 613.49 mi (987.31 km) |
| Lake Oswego to Clovis (New Mexico) | 1,276.35 mi (2,054.09 km) |
| Lake Oswego to Clute (Texas) | 1,865.64 mi (3,002.46 km) |
| Lake Oswego to Coachella (California) | 881.30 mi (1,418.31 km) |
| Lake Oswego to Coalinga (California) | 652.43 mi (1,049.98 km) |
| Lake Oswego to Coamo (Puerto Rico) | 3,715.78 mi (5,979.97 km) |
| Lake Oswego to Coatesville (Pennsylvania) | 2,375.57 mi (3,823.11 km) |
| Lake Oswego to Cockeysville (Maryland) | 2,351.43 mi (3,784.26 km) |
| Lake Oswego to Cocoa (Florida) | 2,560.67 mi (4,121.00 km) |
| Lake Oswego to Cocoa Beach (Florida) | 2,569.44 mi (4,135.11 km) |
| Lake Oswego to Coconut Creek (Florida) | 2,681.21 mi (4,315.00 km) |
| Lake Oswego to Coeur d'Alene (Idaho) | 322.07 mi (518.32 km) |
| Lake Oswego to Cohoes (New York) | 2,400.23 mi (3,862.79 km) |
