Bellevue is an unincorporated rural community in Yamhill County, Oregon, United States. It is named for the French words for "beautiful view". It is not known who named the community, but it was settled c. 1860, and a previous post office in the area was named "Muddy". The community is located on the donation land claim of Hathaway Yocum, who came t…Bellevue is an unincorporated rural community in Yamhill County, Oregon, United States. It is named for the French words for "beautiful view". It is not known who named the community, but it was settled c. 1860, and a previous post office in the area was named "Muddy". The community is located on the donation land claim of Hathaway Yocum, who came to Oregon from Illinois in 1851. Bellevue post office operated from 1869 to 1904.