In counties having a population according to the 1980 federal census or any subsequent federal census of not less than thirteen thousand nine hundred (13,900) nor more than fourteen thousand (14,000), §§67-5-1002(5),67-5-1003(3), and67-5-1004(7), concerning the maximum limit of acreage available for any one (1) owner under this part, shall operate to change the classification of any land which has been classified under this part prior to July 1, 1984.