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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).
Coleman is located north of the center of Coleman County at 31Â°49â²40â³N 99Â°25â²32â³W / 31.82778Â°N 99.42556Â°W / 31.82778; -99.42556 (31.827694, -99.425689). U.S. Routes 84 and 283 pass through the northeast side of the city.