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Lake County, IL Cannabis Regulations: Buffer Zones (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Forest preserve / residential-zoned buffer
250 feet
Daycare / college / hospital / park / library buffer
500 feet
School buffer
1,000 feet
Property-line setback
30 feet
Distance between dispensaries
1,500 feet

Summary

Unincorporated Lake County bars adult-use cannabis dispensaries within 250 feet of forest preserves or residential zoning, 500 feet of daycares, colleges, hospitals, parks or libraries, and 1,000 feet of schools.

City-specific rules exist: Waukegan has its own buffer zones rules that differ from Lake County's county-level regulations. If you live in Waukegan, check the city-specific page instead.

No adult-use cannabis dispensary shall be established, maintained, or operated on any lot that has a property line within 250 feet of the property line of a pre-existing forest preserve property or an area zoned for residential use; within 500 feet of the property line of a pre-existing daycare center, day care home, or residential care home, college, hospital, park, or library; or within 1,000 feet of a public or private nursery school, preschool, primary, or secondary school.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Supplement contains: Local legislation current through Ord. 26-0618, passed 6-9-2026 | State legislation current through ILCS Pamphlet 2025 #5).

Full Breakdown

Lake County's zoning code sets fixed buffers for any adult-use cannabis dispensary sited in the unincorporated county: no closer than 250 feet to a forest preserve property line or land zoned residential, 500 feet to a daycare, residential care home, college, hospital, park, or library, and 1,000 feet to a public or private school. Distances are measured in a straight line between the nearest property lines, ignoring intervening structures. Dispensaries also need a standard 30-foot setback from all property lines and must sit at least 1,500 feet from any other dispensary. Waukegan, Highland Park, and other cities set their own separate rules.

Violations & Fines

Violating the buffer, setback, or spacing standards blocks conditional-use and site-plan approval from the county; a dispensary found out of compliance risks permit revocation and enforcement action by the Lake County Planning, Building and Development Department.

Frequently Asked Questions

Does this buffer apply inside Waukegan or Highland Park?
No. County zoning covers unincorporated Lake County only; incorporated cities like Waukegan and Highland Park regulate dispensaries under their own municipal codes.
How is the buffer distance measured?
In a straight line between the nearest property lines of the dispensary lot and the protected use, disregarding intervening buildings or objects.

Sources & Official References

Other rules in Lake County

All Lake County rules

Compare Lake County to another location·View the Illinois cannabis regulations overview

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Buffer Zones in Cities Across Lake County