The administrative divisions of Illinois are counties, townships, precincts, cities, towns, villages, and special-purpose districts.
[3] The Constitution of 1970 created, for the first time in Illinois, a type of "home rule", which allows localities to govern themselves to a certain extent.
[4] Illinois also has several types of school districts and additional units of government that oversee many other functions.
Area vocational centers and special education cooperatives may be formed by joint agreement between two or more school districts.
[12] These service centers are governed by boards consisting of members appointed by the regional superintendent.
[13] The Office of the Illinois Comptroller, which uses a broader definition that includes special districts without budget autonomy, determined the state has 4,755 as of December 2015.