St. Clair County, IL Swimming Pools & Spas: Fencing & Safety Requirements (2026)
Key Facts
- Residential barrier code
- ISPSC 2012 / IRC Appendix G
- Residential barrier height
- 48 inches minimum
- Public pool barrier (DPH)
- 4 feet minimum
- Gates
- Self-closing, self-latching
- County adoption
- Building Regs Art. IX / Appendix G
Summary
St. Clair County adopts the International Swimming Pool and Spa Code, 2012, for residential pools. That code requires an enclosing barrier at least 48 inches high around the pool. Public pools regulated by the county Health Department must be enclosed by a barrier at least 4 feet high.
That a certain document ... designated as "The International Swimming Pool and Spa Code, 2012" ... is hereby adopted as ... the Swimming Pool and Spa Code of St. Clair County, Illinois for the construction ... of aquatic vessels.
Full Breakdown
Residential pools in unincorporated St. Clair County follow the adopted ISPSC 2012 (and IRC Appendix G, Swimming Pools, Spas and Hot Tubs). Under that code an outdoor residential pool must be surrounded by a barrier whose top is not less than 48 inches above grade, with limited ground clearance and self-closing, self-latching gates. Separately, public swimming pools inspected by the St. Clair County Health Department must comply with Illinois DPH's Swimming Facility Code, which requires the pool area to be completely enclosed by a wall, fence or barrier at least 4 feet high. The county code text incorporates the ICC barrier standard by reference rather than restating each dimension.
Violations & Fines
A pool without the required barrier fails inspection and cannot receive final approval; unenclosed pools may be cited as a nuisance/safety hazard until compliant.
Frequently Asked Questions
How tall must my backyard pool fence be?
Is the barrier rule different for public pools?
Sources & Official References
Other rules in St. Clair County
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