Classification of counties.

(1) Each county shall be classified according to the county's population. (2) (a) A county with a population of 1,150,000 or more is a county of the first class. (b) A county with a population of 260,000 or more but less than 1,150,000 is a county of the second class. (c) A county with a population of 40,000 or more but less than 260,000 is a county of the third class. (d) A county with a population of 12,000 or more but less than 40,000 is a county of the fourth class. (e) A county with a population of 5,000 or more but less than 12,000 is a county of the fifth class. (f) A county with a population less than 5,000 is a county of the sixth class.