65 ILCS 5/7-6-7
Upon application by the county board of any county to the circuit court, and after a hearing upon such notice as may be directed by such court, any municipality which has less than 50 inhabitants according to the last preceding Federal census may be ordered by the court to dissolve. After service of such order upon the corporate authorities of the municipality acting at that time they shall proceed to close up the business affairs of the municipality as expeditiously as possible and in the same manner as is provided by Sections 7-6-4, 7-6-5 and 7-6-6 in the case of voluntary dissolution. The court may enforce compliance with its order by proceedings for contempt. If ever there is in existence any municipality in which the Bureau of the Census did not determine the population when the last preceding decennial census was taken, the county board of the county in which such municipality is located may, at county expense, arrange with the Bureau of the Census to take a special census of such municipality.
65 ILCS 5/7-6-7