Orenco is a former company town in Washington County, Oregon, United States, located between Hillsboro and Aloha. The former community of Orenco now forms the Orenco neighborhood in Hillsboro, which is the site of the Orenco Station housing development. The community was established in 1905 as a company town by the Oregon Nursery Company, within a 1200-acre area owned by the company. The name Orenco is a composite of the company's initials.