Russell County is a historic county in the Canadian province of Ontario. It was created in 1800 from a portion of Stormont County. It later merged with Prescott County to form Prescott and Russell United Counties. Cumberland Township became part of the Regional Municipality of Ottawa–Carleton in 1969, and is now part of the single-tier city of Ottawa. Historic townships Cambridge (SE) - Now part of the Nation Township Clarence (NE) - Merged with Rockland to become the city of Clarence-Rockland Cumberland (NW) - Now part of the city of Ottawa Russell (SW) - Still exists See also List of Ontario census divisions List of townships in Ontario External links 1951 map of Russell County Bibliography Former counties in Ontario Populated places disestablished in 1969