Oregon House is an unincorporated community in Yuba County, California. It is located 22 miles northeast of Marysville, at an elevation of 1526 feet.The settlement grew up around a travelers' rest stop built in 1852. A post office was established at Oregon House in 1854, closed in 1902, and reopened in 1903.New Bullards Bar Dam, one of the highest dams in the world, is about 6 miles away.