Decatur is a city in Morgan and Limestone counties in the U.S. state of Alabama. The city, nicknamed "The River City", is located in Northern Alabama on the banks of Wheeler Lake, along the Tennessee River. It is the largest city and county seat of Morgan County. The population in 2010 was 55,683.Decatur is also the core city of the two-county large Decatur, Alabama metropolitan area which had an estimated population of 153,374 in 2013. Combined with... Show more

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