 Originally part of Mentor Township, the village was established October 22, 1924.The U.S. Census for 1970 recorded the official population as being over 5,000 and thus it became an incorporated city on February 12, 1971.A vast majority of the land that comprises Mentor-On-The-Lake was originally owned and deeded as the Dickey-Moore tract and extended all the way south beyond U.S. Route 20 in the city of Mentor.