Willamina is a city in Polk and Yamhill Counties in the U.S. state of Oregon. The population was 2,025 at the 2010 census.

The Yamhill County allowance of Willamina is allowance of the Portland–Vancouver–Beaverton, Metropolitan Statistical Area, while the Polk County portion is allowance of the Salem Metropolitan Area.

Willamina was named after Willamina Creek, which in tilt was named for in advance settler Willamina Williams brusquely after she fell off of her horse and into a creek, which was in imitation of named after her. Williams was born Willamina Craig in 1817 in Ohio. She married James Maley in 1837 and the couple came to Oregon in 1845 gone James’ daughter. While looking for house to settle, the intimates came across a tributary of the South Yamhill River and named it for Mrs. Maley. James Maley died in 1847, and Willamina married Enos Williams in 1848. They contracted in what is now Amity.

Willamina herald office was customary in 1855 on the James Brown estate claim, about a mile east of present-day Willamina. The office moved in 1863 just about two miles west to the Jeremiah Lamson house claim. In 1866, the office was moved and renamed to present-day Sheridan. In 1878, a supplementary Willamina make known office was established; it operated from December 1880 to March 1891 just over the county descent in Polk County. A gristmill and sawmill were standard in 1878. The townsite was platted in 1879 and Willamina incorporated in 1903. At that era the city had 200 residents.