65 ILCS 5/9-2-84
In counties having a population of less than 1,000,000, the collector of the municipality, at any time after August 15 in each year, shall publish an advertisement that a return will be made to the general officer of the county having authority to receive State and county taxes of all unpaid special assessments or installments thereof matured and payable, or interest thereon, or interest due to the preceding January 2 on installments not yet matured on all warrants in his hands. This advertisement (1) shall contain a list of the delinquent lands, town lots, and real property upon which the special assessment or installments thereof or interest thereon remain unpaid, the name of the person shown by the county collector's current warrant book to be the party in whose name the general real estate taxes were last assessed for each such property, the total amount due thereon, and the year for which the same are due; (2) shall give notice that the general officer of the county having authority to receive State and county taxes in the county in which those lands, town lots, or real property may be located, will make application on the day specified therein, for judgment against those lands, town lots, and real property for those special assessments, matured installments of special assessments, interest and costs due thereon, and for an order to sell those lands, town lots, and real property for the satisfaction thereof; and (3) shall give notice that on the Monday fixed by that general officer of the county for sale, all the lands, town lots, and real property, for the sale of which an order is made, will be exposed to public sale at the court house in that county for the amount of special assessments and matured installments of special assessments, interest and costs due thereon. The advertisement shall be sufficient notice of the intended application for judgment and of the sale of those lands, town lots, and real property under the order of the court.
Publication of the advertisement shall be made at least once not more than 30 nor less than 15 days in advance of the date upon which the judgment is to be sought. Such publication shall be made in one or more newspapers published in the municipality, or if no newspaper is published therein then in one or more newspapers with a general circulation in the municipality. In municipalities with less than 500 inhabitants, publication may instead be made by posting a notice in 3 prominent places within the municipality.
The municipal collector shall add to all special assessments and matured installments of special assessments and the interest thereon, when paid after August 15 in the year when they became due and payable, an amount equal to the actual costs, not to exceed 0.2% of the assessed value of each lot, tract, or parcel of land upon which payment is made, to cover the cost of the advertisement as required in this Division 2.
65 ILCS 5/9-2-84