Oregon.
One would think that California, Washington and Alaska would too. But, Alaska borders the Bering Sea not the Pacific Ocean. And California and Washington both have borders that snake back and border smaller inlets.
The entire western boundary of Kansas is included in the border of Colorado.
Argentina
The US states of Alaska, California, Oregon and Washington share their western border with the Pacific Ocean. Also, the US state of Hawaii is located in the Pacific Ocean and it shares all its borders with the Pacific Ocean.
Sacramento. That is the capital of California which has the longest border with Nevada. Nevada's entire western border is with California.
None.Hawaii shares no borders with other States.
The US states of Alaska, California, Oregon and Washington share their western border with the Pacific Ocean. Also, the US state of Hawaii is located in the Pacific Ocean and it shares all its borders with the Pacific Ocean.
Ecuador and Panama
Oklahoma
Nunavut
Yukon Territory
Idaho
New Mexico