Chart of Alabama population centers (2015)

Sources: Census.gov

Reference 1: Population (2015 census estimates).

Reference 2: Birmingham, Montgomery, Mobile, Huntsville, Tuscaloosa, Hoover, Dothan, Auburn, Decatur, Madison, Florence, Phenix City, Gadsden, Prattville and Vestavia Hills.

Source: http://en.wikipedia.org/wiki/Alabama