10 ILCS 5/11-3
2021 Illinois Compiled Statutes|Chapter 10 - ELECTIONS|10 ILCS 5/ - Election Code.|Article 11 - Establishment of Election Precincts

 (from Ch. 46, par. 11-3)Sec. 11-3. Election precincts.(a) It shall be the duty of the Board of Commissioners  established by Article 6 of this Act, within 2 months after its first  organization, to divide the city, village or incorporated town which may  adopt or is operating under Article 6, into election precincts, each of  which shall be situated within a single congressional, legislative  and representative district insofar as  is practicable and in not more than one County Board district and one  municipal ward;  in order to situate each precinct within a single district or ward, the  Board of Election Commissioners shall change the boundaries of election  precincts after each  decennial census as soon as is practicable following the completion of  congressional and legislative redistricting  and such precincts  shall contain as nearly as practicable: (i) 1,200 registered voters if the precinct is located in a county with fewer than 3,000,000 inhabitants; or (ii) 1,800 registered voters if the precinct is located in a county with 3,000,000 or more inhabitants.(b) Within 90 days after each presidential  election, such board in a city with fewer than 500,000 inhabitants, village  or incorporated town shall revise and rearrange such precincts on the  basis of the votes cast at such election, making such precincts to  contain, as near as practicable, 1,200 registered voters or 1,800 registered voters, as applicable. However, any apartment building  in which more than 1,200 or 1,800 registered voters, as applicable, reside may be made a single  precinct even though the vote in such precinct exceeds 1,200 or 1,800 registered voters, as applicable.(c) Within 90 days after each presidential election, a board in a city with  more than 500,000 inhabitants shall revise and rearrange such precincts on  the basis of the votes cast at such election, making such precincts to  contain, as near as practicable: (i) 1,200 registered voters if the precinct is located in a county with fewer than 3,000,000 inhabitants; or (ii) 1,800 registered voters if the precinct is located in a county with 3,000,000 or more inhabitants.  However, any apartment building in which more than  1,200 registered voters or 1,800 registered voters, as applicable, reside may be made a single precinct even though the  vote in such precinct exceeds 1,200 or 1,800 registered voters, as applicable.(d) Immediately after the annexation of territory to the city, village or  incorporated town becomes effective the Board of Election Commissioners  shall revise and rearrange election precincts therein to include such  annexed territory.(e) Provided, however, that at any election where but one candidate is  nominated and is to be voted upon at any election held in any political  subdivision of a city, village or incorporated town, the Board of  Election Commissioners shall have the power in such political  subdivision to determine the number of voting precincts to be  established in such political subdivision at such election, without  reference to the number of qualified voters therein. The precincts in  each ward, village or incorporated town shall be numbered from one  upwards, consecutively, with no omission.(f) The provisions of this Section apply to all precincts, including  those where voting machines or electronic voting systems are used.  (Source: P.A. 102-668, eff. 11-15-21.)