70 ILCS 1005/1
Any contiguous territory having a population of not less than 300 inhabitants and no part of which is already included in a mosquito abatement district may be organized as a mosquito abatement district in the following manner:
Any 5% of the legal voters within the limits of the proposed mosquito abatement district may petition the circuit court for the county in which such territory lies, to order the question whether such territory shall be organized as a mosquito abatement district under this Act to be submitted to the legal voters of such territory, but every petition shall be signed by at least 25 legal voters residing within the territory proposed to be organized as a mosquito abatement district, and in case such territory includes more than one city, village or incorporated town, or any portions thereof, or includes one or more cities, villages or incorporated towns, or any portion thereof and territory not a part of any city, village or incorporated town, then such petition must be signed by at least 5% of the legal voters residing in each of the said cities, villages, or incorporated towns, or portions thereof, and by at least 5% of the legal voters residing in the territory not a part of any city, village or incorporated town. Such petition addressed to the court shall contain a definite description of the boundaries of the territory proposed to be organized as a mosquito abatement district, and shall set forth the name of the proposed district, which name shall be The.... Mosquito Abatement District.
70 ILCS 1005/1