(65 ILCS 5/3.1-10-51)
Sec. 3.1-10-51. Vacancies in municipalities with a population of 500,000 or more.
(a) A municipal officer may resign from office. A vacancy occurs in an office by reason of resignation, failure to elect or qualify (in which case the incumbent shall remain in office until the vacancy is filled), death, permanent physical or mental disability rendering the person incapable of performing the duties of his or her office, conviction of a disqualifying crime, abandonment of office, removal from office, or removal of residence from the municipality or, in the case of an alderman of a ward, removal of residence from the ward. An admission of guilt of a criminal offense that would, upon conviction, disqualify the municipal officer from holding that office, in the form of a written agreement with State or federal prosecutors to plead guilty to a felony, bribery, perjury, or other infamous crime under State or federal law, shall constitute a resignation from that office, effective at the time the plea agreement is made. For purposes of this Section, a conviction for an offense that disqualifies the municipal officer from holding that office occurs on the date of the return of a guilty verdict or, in the case of a trial by the court, the entry of a finding of guilt.
(b) If a vacancy occurs in an elective municipal office with a 4-year term and there remains an unexpired portion of the term of at least 28 months, and the vacancy occurs at least 130 days before the general municipal election next scheduled under the general election law, then the vacancy shall be filled for the remainder of the term at that general municipal election. Whenever an election is held for this purpose, the municipal clerk shall certify the office to be filled and the candidates for the office to the proper election authorities as provided in the general election law. If the vacancy is in the office of mayor, the city council shall elect one of their members acting mayor. The acting mayor shall perform the duties and possess all the rights and powers of the mayor until a successor to fill the vacancy has been elected and has qualified. If the vacancy is in any other elective municipal office, then until the office is filled by election, the mayor shall appoint a qualified person to the office subject to the advice and consent of the city council.
(c) If a vacancy occurs later than the time provided in subsection (b) in a 4-year term, a vacancy in the office of mayor shall be filled by the corporate authorities electing one of their members acting mayor. The acting mayor shall perform the duties and possess all the rights and powers of the mayor until a mayor is elected at the next general municipal election and has qualified. A vacancy occurring later than the time provided in subsection (b) in a 4-year term in any elective office other than mayor shall be filled by appointment by the mayor, with the advice and consent of the corporate authorities.
(d) A municipal officer appointed or elected under this Section shall hold office until the officer's successor is elected and has qualified.
(e) An appointment to fill a vacancy in the office of alderman shall be made within 60 days after the vacancy occurs. The requirement that an appointment be made within 60 days is an exclusive power and function of the State and is a denial and limitation under Article VII, Section 6, subsection (h) of the Illinois Constitution of the power of a home rule municipality to require that an appointment be made within a different period after the vacancy occurs.
(f) This Section applies only to municipalities with a population of 500,000 or more.
(Source: P.A. 95-646, eff. 1-1-08.)
Last modified: February 18, 2015