The Columbia River is the border for most of Oregon/Washington states.
Idaho borders Washington and Oregon to the East.
Oregon, Washington and California border the Pacific Ocean.
There are three states in the continental U.S. bordered by the Pacific Ocean. These states are Washington, Oregon, and California.
The western states in the 48 contiguous states that have the longest border with Canada are Washington and Montana. Washington shares a border with British Columbia, while Montana shares a border with Alberta, Saskatchewan, and British Columbia.
Washington & Oregon.
Maryland and Virginia
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The Columbia River forms a border between the states of Washington and Oregon.
There are five US States that border the Pacific Ocean, three of them contiguous states (Washington, Oregon, California) and two noncontiguous (Alaska and Hawaii). There is one Canadian Province that borders the Pacific Ocean: British Columbia.
Five states border the Pacific Ocean: Hawaii Alaska Washington Oregon California
Oregon, California, Washington, Alaska, and Hawaii are the states that border the Pacific Ocean.