data.cityofchicago.orgWard precincts, which function as local election districts to determine the polling places for voters, based on their addresses. Precincts are based on U.S. Census Bureau blocks. These precincts were used in 2010.https://data.cityofchicago.org/api/views/2d4k-r48mengCity of Chicago Data PortalPublicFacilities & Geographic BoundariesPrecincts2010 [Illinois--Chicago]Web servicesIllinois--ChicagoIllinoisLast Modified: 2024-04-10