| Lake Oswego to Castle Pines (Colorado) | 994.97 mi (1,601.25 km) |
| Lake Oswego to Castle Rock (Colorado) | 998.77 mi (1,607.36 km) |
| Lake Oswego to Castro Valley (California) | 533.32 mi (858.29 km) |
| Lake Oswego to Catalina Foothills (Arizona) | 1,103.95 mi (1,776.63 km) |
| Lake Oswego to Cataño (Puerto Rico) | 3,709.08 mi (5,969.19 km) |
| Lake Oswego to Cathedral City (California) | 865.30 mi (1,392.57 km) |
| Lake Oswego to Catonsville (Maryland) | 2,352.41 mi (3,785.84 km) |
| Lake Oswego to Cave Spring (Virginia) | 2,258.13 mi (3,634.11 km) |
| Lake Oswego to Cayce (South Carolina) | 2,322.53 mi (3,737.76 km) |
| Lake Oswego to Cayey (Puerto Rico) | 3,723.50 mi (5,992.40 km) |
| Lake Oswego to Cedar City (Utah) | 728.27 mi (1,172.03 km) |
| Lake Oswego to Cedar Falls (Iowa) | 1,508.34 mi (2,427.44 km) |
| Lake Oswego to Cedar Hill (Texas) | 1,630.97 mi (2,624.79 km) |
| Lake Oswego to Cedar Lake (Indiana) | 1,777.74 mi (2,860.99 km) |
| Lake Oswego to Cedar Mill (Oregon) | 9.76 mi (15.71 km) |
