55 ILCS 5/4-1001

(55 ILCS 5/4-1001) (from Ch. 34, par. 4-1001)

Sec. 4-1001.

Counties classified.

For the purpose of fixing the fees
and compensation of county and township officers in this State, the several
counties therein are hereby divided into 3 classes, according to population
as ascertained by the most recent Federal Census, which classes shall be
known as the first, second and third, as follows:

Counties containing a population of not exceeding 25,000 inhabitants
shall be known as counties of the first class.

Counties containing a population over 25,000 and not exceeding 1,000,000
shall be known as counties of the second class.

Counties containing a population exceeding 1,000,000 shall be known as
counties of the third class.

The fees and compensation of the several officers hereinafter named,
shall be as provided by law in the respective classes of the counties to
which they belong.

(Source: P.A. 86-962.)