Lake County, IL Fire Regulations: Wildfire Zones (2026)

Lake County, Illinois does not have mapped wildfire hazard severity zones and Illinois has not adopted a Wildland-Urban Interface (WUI) building code equivalent to California's Chapter 7A or Colorado's WUI overlays. The state's wildfire risk is modest compared to western states, but grassland, prairie, and forest preserve fires do occur, particularly in drought years across the Chain O'Lakes region, Illinois Beach State Park, and Lake County Forest Preserve holdings. Vegetation management is addressed indirectly: open burning is regulated under 415 ILCS 5/9 and Illinois Pollution Control Board rules (35 Ill. Adm. Code 237), and most incorporated Lake County municipalities restrict or ban open burning of landscape waste (see Gurnee, Libertyville, Vernon Hills, and Buffalo Grove codes). Unincorporated burning is allowed only for landscape waste on the property where it grew, and only when not creating a nuisance. Consumer fireworks remain banned statewide under 425 ILCS 35 (Pyrotechnic Use Act), eliminating a common ignition source. Building code requirements follow the adopted Illinois edition of the IRC/IBC without Chapter 7A ignition-resistant construction amendments. Property owners near forest preserves or prairie restorations should maintain mowed buffers voluntarily; no county ordinance mandates defensible space clearance.