 Although the precincts in Jefferson County were not named, for the purposes of population comparison, the figures for the 31st precinct from 1890-1950 were included in the population chart.In 1960, the precincts were merged and/or reorganized into census divisions (as part of a general reorganization of counties) and it was divided between the census divisions of Overton and Vestavia Hills.In 1980, both census divisions were abolished and the present area is in the Birmingham and partly within Leeds Census Divisions.