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St. Clair County, IL Sign Regulations: Political Signs (2026)

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

Key Facts

Political-sign category
None; treated as temporary
Max temporary sign area
48 sq ft
Display limit
30 days, one 30-day extension
Distance from lot line
10 ft minimum
Applies to
Unincorporated county only

Summary

The county Zoning Ordinance has no separate political-sign category. Campaign signs fall under temporary signs, limited to 48 sq ft, and a temporary sign cannot stay up more than 30 days (extendable once by 30 days). No sign may be within 10 feet of a lot line. City limits set

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

Term of Permit. Temporary signs shall not remain in place for a period of more than thirty (30) days except that the zoning official may extend the time period for an additional thirty (30) days.

Full Breakdown

St. Clair County's sign regulations (Article VII, Ch. 40) do not name political or campaign signs. Such signs are treated as a "Temporary Sign": an advertising device or display "intended for a temporary period of display; such as decorative displays for holidays or public demonstrations" (Sec. 40-7-3(I)). Maximum temporary sign area is 48 sq ft, and "Temporary signs shall not remain in place for a period of more than thirty (30) days," extendable once by the zoning official. General sign rules (Sec. 40-7-2) bar placement within 10 feet of any lot line and in public right-of-way. These county rules apply to unincorporated land only; municipalities regulate signs within their limits.

Violations & Fines

Signs exceeding the size or time limits or placed in the setback/right-of-way violate Article VII and can be ordered removed with penalties.

Frequently Asked Questions

How long can I keep a political yard sign up in the county?
As a temporary sign, no more than 30 days, which the zoning official may extend once by another 30 days in unincorporated St. Clair County.
Does the county limit political-sign size?
Yes indirectly. Political signs are temporary signs, capped at 48 square feet, and must be at least 10 feet from any lot line.

Sources & Official References

Other rules in St. Clair County

All St. Clair County rules

Compare St. Clair County to another location·View the Illinois sign regulations overview

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