St. Louis County, MO Fire Regulations: Fireworks (2026)

Chapter 810 of the St. Louis County Code makes it unlawful for 'any person, firm or corporation to sell, possess, offer for sale, expose for sale, give, use, discharge or explode fireworks within St. Louis County' (Section 810.020.1), and it goes further than a sale ban: 'the storage or possession of any fireworks in, or on any building, structure, or premise in St. Louis County is prohibited,' with a narrow exception for items awaiting an approved pyrotechnic display (Section 810.020.3). 'Fireworks' is defined broadly under Section 810.015 to include firecrackers, sky rockets, Roman candles, bombs, aerial shells and similar articles, but excludes toy paper-cap guns with no more than twenty-five hundredths (0.25) of a grain of explosive compound per cap. The chapter's scope, Section 810.010, reaches unincorporated areas and 'any municipality except those having a population of seventy-five thousand (75,000) or more and which maintain organized health departments,' which is why the ban covers nearly every municipality inside the county, but not the separate City of St. Louis.

The only lawful path to a fireworks display is a permit from the Director of Transportation and Public Works, filed at least ten business days ahead and requiring fire protection district approval, per Section 810.030. Displays must also meet Section 810.035's minimum clearances or NFPA Standard 1123, whichever is stricter: 600 feet from any church, hospital, mental health facility or school, and 300 feet from any ignitable-liquid storage, gas pump or filling station. If the Director suspends or revokes a permit, the permittee may appeal for reconsideration within three days, and the Director must hold a hearing within five days of receiving the appeal (Section 810.030.4).

Enforcement is criminal: Section 810.050 sets a fine of $50 to $1,000 per offense, up to 90 days in jail, or both, and lets the Director seize and destroy fireworks found in violation.