| Lake Oswego to Carrollwood (Florida) | 2,492.53 mi (4,011.34 km) |
| Lake Oswego to Carson (California) | 833.67 mi (1,341.67 km) |
| Lake Oswego to Carson City (Nevada) | 458.13 mi (737.30 km) |
| Lake Oswego to Carteret (New Jersey) | 2,434.58 mi (3,918.07 km) |
| Lake Oswego to Cartersville (Georgia) | 2,133.30 mi (3,433.22 km) |
| Lake Oswego to Carthage (Missouri) | 1,570.01 mi (2,526.69 km) |
| Lake Oswego to Cary (Illinois) | 1,718.49 mi (2,765.64 km) |
| Lake Oswego to Cary (North Carolina) | 2,364.31 mi (3,804.98 km) |
| Lake Oswego to Casa de Oro-Mount Helix (California) | 925.80 mi (1,489.92 km) |
| Lake Oswego to Casa Grande (Arizona) | 1,041.88 mi (1,676.75 km) |
| Lake Oswego to Casas Adobes (Arizona) | 1,097.85 mi (1,766.81 km) |
| Lake Oswego to Cascades (Virginia) | 2,327.85 mi (3,746.31 km) |
| Lake Oswego to Casper (Wyoming) | 829.97 mi (1,335.70 km) |
| Lake Oswego to Casselberry (Florida) | 2,522.31 mi (4,059.27 km) |
| Lake Oswego to Castaic (California) | 785.13 mi (1,263.55 km) |
