105 ILCS 5/12-19
The county treasurer shall be the treasurer of the non-high school district of the county. He shall: (1) receive and hold all moneys belonging to the district and disburse them upon lawful orders issued by the board of education of the district; (2) report to the secretary of the board of education of the district on or before June 30, annually, the receipts and expenditures of funds belonging to the district and the balance on hand; (3) make annually a complete report to the county superintendent of schools, including therein whatever statistics may be required by the county superintendent; (4) perform such other duties in connection with the non-high school district as are performed by the township treasurers for school districts.
105 ILCS 5/12-19