High Quality Content by WIKIPEDIA articles! Wilsonville is a city primarily in Clackamas County, Oregon, United States. A portion of the northern section of the city is in Washington County. Originally founded as Boones Landing due to the Boones Ferry which crossed the Willamette River at the location, the community became Wilsonville in 1880. The city was incorporated in 1969 with a population of around 1,000. The population was 13,991 at the 2000 census, and grew to 19,509 at the 2010 census. Slightly more than 90% of residents at the 2000 census were White, with Hispanics as the largest minority group.