Ala. Code § 11-90-1

The county commissions of the counties of this state and municipalities, through their governing bodies, may establish and maintain or aid in establishing and maintaining free public libraries for the use of the citizens of the respective counties or municipalities, either separately or in connection with public schools, and to that end may accept gifts, donations, and bequests of land, buildings or money therefor and may make appropriations from the county or municipal treasury in support thereof in such sums as they may deem proper.