| Lake Oswego to Cordele (Georgia) | 2,268.47 mi (3,650.75 km) |
| Lake Oswego to Corinth (Mississippi) | 1,926.20 mi (3,099.91 km) |
| Lake Oswego to Corinth (Texas) | 1,601.16 mi (2,576.82 km) |
| Lake Oswego to Cornelius (North Carolina) | 2,275.14 mi (3,661.49 km) |
| Lake Oswego to Cornelius (Oregon) | 18.50 mi (29.77 km) |
| Lake Oswego to Corning (New York) | 2,257.45 mi (3,633.01 km) |
| Lake Oswego to Corona (California) | 843.13 mi (1,356.88 km) |
| Lake Oswego to Coronado (California) | 929.03 mi (1,495.12 km) |
| Lake Oswego to Corpus Christi (Texas) | 1,847.93 mi (2,973.95 km) |
| Lake Oswego to Corsicana (Texas) | 1,675.23 mi (2,696.02 km) |
| Lake Oswego to Cortland (New York) | 2,287.74 mi (3,681.77 km) |
| Lake Oswego to Corvallis (Oregon) | 64.73 mi (104.17 km) |
| Lake Oswego to Coshocton (Ohio) | 2,077.23 mi (3,342.97 km) |
| Lake Oswego to Costa Mesa (California) | 850.30 mi (1,368.43 km) |
| Lake Oswego to Coto de Caza (California) | 860.32 mi (1,384.55 km) |
