8 rules for unincorporated St. Clair County, Illinois.
Verified from official government sources
St. Clair County enforces the 2012 International Fire Code. Recreational fire pits must stay at least 25 feet from any structure or combustible material; manufactured portable outdoor fireplaces must stay 15 feet away. Fires must be attended at all times with a way to extinguish them close by.
IFC (2012) Sec. 307.4.2–307.4.3; St. Clair County Bldg. Regs. Sec. 7-1-6
Recreational fires shall not be conducted within 25 feet (7620 mm) of a structure or combustible material. Portable outdoor fireplaces shall be used in accordance with the manufacturer's instructions and shall not be operated within 15 feet (3048 mm) of a structure or combustible material.
Illinois bans consumer fireworks statewide. Firecrackers, bottle rockets, Roman candles, and aerial shells are illegal to buy, possess, or set off in St. Clair County. Only novelties like sparklers, snakes, and party poppers are permitted. Public displays require a permit and licensed operator.
425 ILCS 35/2
It shall be unlawful for any person, firm, co-partnership, or corporation to knowingly possess, offer for sale, expose for sale, sell at retail, or use or explode any display fireworks, flame effects, or consumer fireworks.
St. Clair County sets no wildfire-style defensible-space rule. Overgrown brush and weeds are handled as a nuisance under the county's property maintenance code and Illinois weed-cutting authority. Owners must keep lots free of rank vegetation; the county or municipality can order cutting and bill the owner if they fail to
Illinois EPA rules allow burning landscape waste (leaves, branches, brush) only on the premises where it is produced and outside restricted areas. Open burning is prohibited within cities and populated townships. Local ordinances may ban it entirely, so check your municipality before lighting a burn pile.
415 ILCS 5; 35 Ill. Adm. Code 237
Landscape wastes, including trees, tree trimmings, branches, stumps, brush, weeds, leaves, grass, shrubbery, and yard trimmings may be open burned upon the premises where it is produced. State law does not override local prohibitions or limitations on open burning.
St. Clair County is not in a designated wildfire hazard zone. Illinois has no Wildland-Urban Interface fire code or defensible-space mandate. The county's real fire-safety framework is the adopted International Fire Code plus state open-burning limits — there are no wildfire brush-clearance or fire-resistant construction requirements here.
Every Illinois home must have working smoke detectors within 15 feet of each sleeping area under the state Smoke Detector Act. St. Clair County's adopted residential code also requires alarms in each bedroom and on every level. As of 2023, new or replacement detectors must have sealed 10-year batteries.
Small backyard recreational fires are allowed under the adopted International Fire Code if the fuel pile stays 3 feet wide and 2 feet high or less, sits at least 25 feet from anything combustible, is constantly attended, and has a hose or extinguisher nearby. Only clean firewood may be burned,
St. Clair County follows the International Fire Code and Illinois LP Gas rules for propane. For homes, small grill cylinders are fine, but stored LP-gas cylinders and larger tanks must meet fire-code setbacks. Cylinders over the exempt size may not be operated on combustible balconies or within 10 feet of
IFC (2012) Sec. 308/6104; St. Clair County Bldg. Regs. Sec. 7-1-6
LP-gas containers shall not be located on balconies. Charcoal burners and other open-flame cooking devices shall not be operated on combustible balconies or within 10 feet (3049 mm) of combustible construction.
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