705 ILCS 105/4
Every clerk shall, before entering upon the duties of office, give bond, with one or more sureties (or, if the county is self-insured, the county through its self-insurance program may provide bonding), to be approved by any two of the judges of his or her court, which bond shall be in such penalty, not less than $5,000, as may be agreed by such judges, payable to the People of the State of Illinois, and conditioned for the faithful performance of the duties of office, and to pay over all moneys that may come into his or her possession or custody by virtue of office, to the parties entitled thereto, and to deliver up all moneys, papers, books, records, and other things appertaining to the office, whole, safe and undefaced, when lawfully required so to do. The bond shall be filed in the office of the Secretary of State. The clerk shall also, before entering upon the duties of his office, take and subscribe the following oath or affirmation:
I do solemnly swear (or affirm, as the case may be) that I will support the constitution of the United States and the constitution of the State of Illinois, and that I will faithfully discharge the duties of the office of clerk of ...., according to the best of my ability.
The oath shall be filed in the office of the Secretary of State.
705 ILCS 105/4