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State Senate Districts

Published by Lake County Illinois GIS | Lake County, Illinois | Catalog Last Checked: November 10, 2026 at 10:40 PM | Dataset Last Updated: November 08, 2026 at 12:14 PM
Download In State Plane Projection Here. Boundaries for electing senators to the Illinois Senate as established by that body. Update Frequency: This dataset is updated on a weekly basis.

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