Glen Allen Fayette CountyMarion CountyAlabama Map Population 480 (2020)Type TownArea 6.53 sq mi (16.9 km²), 0.01 sq mi waterMedian age 33.9Households 19Persons per household 3Businesses 3Employees 46Government TOWN OF GLEN ALLENGovernment office PO BOX 40, GLEN ALLEN, AL 35559