The City of Warrenton was founded in 1864 and is located in Warren County, Missouri. Warrenton has numerous parks, athletic fields, and an outdoor swimming pool complex with slide and playground area along with two nearby golf courses to offer recreation for all ages. The area’s natural beauty and westward expansion has brought many families and businesses to Warrenton. Warrenton was laid out in 1864. It was named from Warren County, which was named for General Joseph Warren, who was killed in action at the Battle of Bunker Hill in the American Revolutionary War.