Morgan is a city in Redwood County, Minnesota, United States. The population was 888 at the 2020 census. Morgan was platted in 1878…Morgan is a city in Redwood County, Minnesota, United States. The population was 888 at the 2020 census. Morgan was platted in 1878. The city was named for Lewis H. Morgan, an American politician and anthropologist. A post office has been in operation in Morgan since 1878. Morgan was incorporated in 1889.