North Plains is a city in Washington County, Oregon, United States, off U.S. 26 on the northwest outskirts of the Portland metropolitan area. The population was 1,947 at the 2010 census.
The area to be known as the city of North Plains was platted in September 1910 by the Ruth Trust Company of Portland. They purchased area tracts after James J. Hill planned to extend United Railways there.[6][7]
Pumpkin Ridge Golf Club is just outside town. David Duval won the Nike Tour Championship there in 1993, and it was home to the U.S. Women's Open in 1997 and 2003.[8] Horning's Hideout within the North Plains area was home to Faerieworlds Festival 2004[9