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Sponsored Topics. Leonard is a city in Cass County, North Dakota in the United States. The population was 223 at the 2010 census. Leonard was founded in 1882. Leonard is located at 46Â°39â²4â³N 97Â°14â²44â³W / 46.65111Â°N 97.24556Â°W / 46.65111; -97.24556 (46.651034, -97.245694).
Workers settled the area in 1851, and the county was officially settled and the government officially organized in 1859. Mecosta County is home to over 100 lakes, rivers, and streams with the Muskegon River winding its way through the county seat and largest city Big Rapids (originally named Leonard).