Town guide
Cornelius
Oregon · OR
About Cornelius
City in Oregon, United States1893Established
12,694Population
2 sq miArea
177 ftElevation
Cornelius is a city in Washington County, Oregon, United States. Located in the Portland metropolitan area. The population was 12,694 at the 2020 census, and was estimated at 15,520 in 2025. The city lies along Tualatin Valley Highway between Forest Grove to the west and Hillsboro to the east. Cornelius was incorporated in April 1893 and is named for founder Thomas R. Cornelius.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
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