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McHenry County, IL Sign Regulations: Garage Sale Signs (2026)

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

Key Facts

Small yard signs
Exempt; no permit
Temp structural signs
One per street frontage
Setback
5 feet from side and front lines
Max display
120 days
Right-of-way
No encroachment allowed

Summary

Small garage-sale yard signs are exempt from permitting under the McHenry County UDO. A larger temporary structural sign is capped at one per street frontage, must sit at least 5 feet from side and front lot lines, and can be displayed for no more than 120 days.

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.

Temporary structural signs shall be set back a minimum of five (5) feet from any side lot line and five (5) feet from any front lot line. No part of a temporary structural sign may encroach onto a public right-of-way.

Full Breakdown

The UDO exempts yard signs and temporary nonstructural signs from regulation (§ 16.72.090), so a typical garage-sale sign on your own lot needs no permit. If you use a larger temporary structural sign, § 16.72.100 allows one per street frontage without a sign permit (a building permit may apply to structural/electrical parts). It must be set back at least 5 feet from any side and front lot line, cannot encroach on a public right-of-way, is limited to 16 square feet (32 on Regional Transportation Corridors) and 10 feet tall, and may not be displayed for more than 120 days. Do not place signs in the road right-of-way.

Violations & Fines

Signs in the public right-of-way or violating the UDO are subject to removal and zoning enforcement by the county.

Frequently Asked Questions

Can I stake garage-sale signs along the road?
Not in the public right-of-way. Temporary structural signs may not encroach onto a public right-of-way and must be set back at least 5 feet from lot lines.
Do I need a permit for a garage-sale sign?
No sign permit is required for exempt yard signs or temporary structural signs, though structural or electrical components may need a building permit.

Sources & Official References

Other rules in McHenry County

All McHenry County rules

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

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