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

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

Key Facts

Dispensary school buffer
1,000 ft from property line
Craft Grower school buffer
2,500 ft from property line
Cultivation Center school buffer
2,500 ft
Cultivation Center extra buffer
2,500 ft from residential zoning
Protected uses
Preschool, elementary, secondary school
Governing section
UDO § 16.56.030CC(2)(b),(3)(b),(4)(b)

Summary

McHenry County keeps cannabis dispensaries 1,000 feet from any preschool, school or addiction-recovery residential care facility, and keeps craft growers and cultivation centers 2,500 feet from those same schools, all under UDO § 16.56.030CC.

These county ordinances apply to unincorporated areas of McHenry County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

b. Cannabis Dispensary shall not be located within one thousand (1,000) feet of the property line of a pre-existing public or private preschool, elementary school, or secondary school, or RESIDENTIAL CARE FACILITY providing addiction recovery services. ... 3.b. Cannabis Craft Growers shall only be located within the Agricultural zoning districts and shall not be located within two thousand five hundred (2,500) feet of the property line of a pre-existing public or private preschool, elementary school, or secondary school. ... 4.b. Cannabis Cultivation Center shall not be located within two thousand five hundred (2,500) feet of the property line of a pre-existing public or private preschool, elementary school, or secondary school, or an area zoned for residential use.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2025 S-5: Supplement contains: Local legislation current through Ord. A25-0037, passed 8-19-2025 | State legislation current through ALS 2025 Pamphlet No. 1).

Full Breakdown

030CC of the Unified Development Ordinance sets three separate buffer standards for cannabis land uses in the unincorporated county. b). b). b). Each buffer is measured from the property line of the existing protected use to the property line of the cannabis facility, and each only protects schools that pre-date the cannabis use, so a school built later does not retroactively force a licensed facility to relocate. c), layering a security requirement on top of the distance rule.

Violations & Fines

A cannabis dispensary sited within 1,000 feet of a pre-existing school or addiction-recovery residential care facility, or a craft grower or cultivation center sited within 2,500 feet of a pre-existing school (or, for a cultivation center, within 2,500 feet of a residentially zoned area), fails the UDO's use standards and cannot receive final zoning approval or a certificate of occupancy; an operation found in violation after opening is subject to enforcement by the McHenry County Zoning Enforcement Officer.

Frequently Asked Questions

How far must a cannabis dispensary be from a school in McHenry County?
At least 1,000 feet from the property line of a pre-existing public or private preschool, elementary school or secondary school, or a residential care facility providing addiction recovery services, under UDO § 16.56.030CC.2.b. The buffer runs from property line to property line, not building to building.
Do craft growers and cultivation centers have the same school buffer as dispensaries?
No, theirs is wider. Craft Growers and Cultivation Centers must stay 2,500 feet from a pre-existing preschool, elementary or secondary school under § 16.56.030CC.3.b and CC.4.b, well beyond the 1,000-foot buffer that applies to dispensaries.
Is there a residential buffer for cannabis cultivation centers?
Yes. Beyond the 2,500-foot school buffer, § 16.56.030CC.4.b also bars a Cannabis Cultivation Center from sitting within 2,500 feet of an area zoned for residential use, a restriction that does not apply to dispensaries or craft growers.

Sources & Official References

Other rules in McHenry County

All McHenry County rules

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

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