70 ILCS 1205/2-7
Except as otherwise provided in Section 2-7.1, in case a majority of the votes cast upon the question so submitted shall be in favor of the establishment of such district, said district shall then be deemed organized subject to the election of the initial commissioners: Provided, that where a referendum has been held to organize any territory as a park district under this Act at which a majority of the votes cast in the territory proposed to be organized was against the organization of such park district, then in any subsequent referendum to organize a park district, held within 2 years of the date of the previous referendum, which includes any of the territory included in such previous referendum, if a city, village or incorporated town is included in the territory proposed as a district, no such district shall be deemed to be organized unless a majority of the votes cast within the limits of each such city, village or incorporated town and also a majority of the votes cast outside the limits of each such city, village or incorporated town, shall be in favor of the establishment of such district. The clerk shall certify the proposition to the proper election officials who shall submit the proposition at an election in accordance with the general election law.
70 ILCS 1205/2-7