not less than nor more than
4,000 4,300
14,940 15,000
43,700 44,700
49,400 49,500
58,000 59,000
67,300 67,400
74,500 74,600
100,000 250,000
475,000 480,000
700,000
according to the 1980 federal census or any subsequent federal census, and in any county with a population of not less than two hundred eighty-five thousand (285,000) and not more than two-hundred ninety thousand (290,000) based upon the 1980 federal census.