Illinois State Senate
Illinois Senate District 4
One of 59 districts in the Illinois State Senate. 59 seats: Democratic 40, Republican 19. A majority is 30.
2026 election results
Illinois posts its official results, including legislative races on the ballot, on its election office's results page (opens in a new tab). Statewide and congressional counts are on GovGalaxy's Illinois results page.
Where District 4 is
District 4 is the dark area. Point to or tap any district for its name and a link to its page.
Sources and methodology
ShowHideWhere the district lines and seat counts come from.
District lines come from the U.S. Census Bureau's upper chamber boundary file (Cartographic boundary files, state legislative districts), which maps the districts the state reported to the Census Bureau. Where a state has redrawn its districts since then, the state's own maps are the official ones. District names are the Census Bureau's.
Census Bureau district name: State Senate District 4 (GEOID 17004).
Seats before the November 3, 2026 election, current to November 2, 2026, counted from the official member list. Source: Illinois State Senate (opens in a new tab).