| Lake Oswego to Casamassima | 5,969.25 mi (9,606.58 km) |
| Lake Oswego to Casandrino | 5,905.10 mi (9,503.34 km) |
| Lake Oswego to Casapulla | 5,897.85 mi (9,491.67 km) |
| Lake Oswego to Casarano | 6,056.38 mi (9,746.81 km) |
| Lake Oswego to Casatenovo | 5,495.72 mi (8,844.50 km) |
| Lake Oswego to Casciana Terme | 5,657.14 mi (9,104.30 km) |
| Lake Oswego to Cascina | 5,646.17 mi (9,086.64 km) |
| Lake Oswego to Caselle Torinese | 5,482.67 mi (8,823.51 km) |
| Lake Oswego to Caserta | 5,899.10 mi (9,493.68 km) |
| Lake Oswego to Casier | 5,573.13 mi (8,969.09 km) |
| Lake Oswego to Casorate Primo | 5,510.46 mi (8,868.23 km) |
| Lake Oswego to Casoria | 5,908.37 mi (9,508.60 km) |
| Lake Oswego to Cassano al Ionio | 6,026.42 mi (9,698.59 km) |
| Lake Oswego to Cassano d'Adda | 5,510.63 mi (8,868.51 km) |
| Lake Oswego to Cassano delle Murge | 5,969.78 mi (9,607.43 km) |
