sentences:  It is a principal city of the Auburn-Opelika Metropolitan Area.The Auburn-Opelika, AL MSA with a population of 158,991, along with the Columbus, GA-AL MSA and Tuskegee, Alabama, comprises the greater Columbus-Auburn-Opelika, GA-AL CSA, a region home to 501,649 residents.Auburn is a historic college town and is the home of Auburn University.