SB 4206 Illinois Senate · 104th Regular Session

LOC GOVT-DATA CENTER

Summary
Amends the Counties Code. Allows a county to establish standards for the construction of data centers by ordinance. Provides that the standards may include, without limitation, the size, height, and design of structures and the number of facilities that may be located within a geographic area. Provides that a county may regulate the siting of data centers in unincorporated areas of the county outside of the zoning jurisdiction of a municipality and the 1.5-mile radius surrounding the zoning jurisdiction of a municipality and may establish other specified standards. Sets forth provisions concerning notice and hearings. Provides that any provision of a county zoning ordinance pertaining to data centers that is in effect prior to the effective date may remain in effect. Amends the Illinois Municipal Code. Provides that a municipality may, by ordinance, regulate the siting of data centers within the municipality's zoning jurisdiction and within the 1.5-mile radius surrounding its zoning jurisdiction and may establish other specified standards. Sets forth provisions concerning notice and hearings.
Bill status in committee 1 of 4 stages cleared
Introduction
May 2026
Committee Review
Floor Vote
Governor
Introduced May 18, 2026 Last action May 18, 2026
Floor votes

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Full legislative history

Actions timeline

Total actions
3
Key actions
0
Committee
1
May 18, 2026
Committee
Referred to Assignments
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Darby Hills
Darby Hills
RRepublican
IL
26