West Region State of Idaho A state in the Pacific Northwest region of the United States of America. Idaho borders six states and one Canadian province, but does not border the Pacific Ocean at any point and is not, as such, a coastal state. The states of Washington and Oregon are to the west, Nevada and Utah are to the south, and Montana and Wyoming are to the east. The province of British Columbia, to the north, also shares a small (77 km) border with Idaho. LanguaL curation note: US FDA 1995 Code: US16 idaho West Region State of Idaho A state in the Pacific Northwest region of the United States of America. Idaho borders six states and one Canadian province, but does not border the Pacific Ocean at any point and is not, as such, a coastal state. The states of Washington and Oregon are to the west, Nevada and Utah are to the south, and Montana and Wyoming are to the east. The province of British Columbia, to the north, also shares a small (77 km) border with Idaho. LanguaL curation note: US FDA 1995 Code: US16 idaho