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STATE LEGISLATURES · IL

Explore the Illinois General Assembly.

Choose a chamber to explore its published district map, member table, and source notes. Return to the U.S. map whenever you want to choose another state.

Illinois state outline, without legislative district data
Illinois state outline only. This does not show legislative districts, members, parties, or election outcomes.

TWO CHAMBERS

Choose a chamber.

Illinois has a House of Representatives and a Senate. The links below keep the two chambers separate.

Current district maps

← Back to the U.S. legislature map

EXPLORE THE DISTRICTS

House of Representatives

Official current members, district boundaries, and a sourced district table.

Open the district map ↗

EXPLORE THE DISTRICTS

Senate

Official current members, district boundaries, and a sourced district table.

Open the district map ↗
Choose another state ↗Illinois statewide demographic profile ↗

State outline: U.S. Atlas 3, derived from Census cartographic boundaries. Chamber naming follows the Council of State Governments’ state legislative directory. Representation data, when published, have separate sources; statewide ACS values are not interpreted as district statistics.