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Multnomah County, OR Sign Regulations: Garage Sale Signs (2026)

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

Key Facts

Max size
3 sq ft
Max height
42 inches
Removal deadline
within 6 months
Applies to
unincorporated county only
Permit
required unless exempt (§ 39.6720)

Summary

In unincorporated Multnomah County, a garage-sale sign counts as a temporary lawn sign: capped at 3 square feet and 42 inches tall, and it must come down within six months of going up.

City-specific rules exist: Gresham has its own garage sale signs rules that differ from Multnomah County's county-level regulations. If you live in Gresham, check the city-specific page instead.

(C) Lawn Signs. Lawn signs may not be greater than three square feet in area and may not be over 42 inches in height. ... (A) Time Limit. Temporary signs and support structures, if any, must be removed within six months of the date of erection.

Source: PCC 32.32.020 Temp SignsView official code

Full Breakdown

Multnomah County Code treats a yard-sale sign as a temporary sign under MCC 39.6810. As a lawn sign it cannot exceed three square feet in area or 42 inches in height, cannot be permanently attached to the ground, a building, or any other structure, and must be removed within six months of erection. Countywide sign rules at MCC 39.6710 require a sign permit before any sign is erected unless it falls under one of the exemptions listed at MCC 39.6720, and lawn/temporary signs are not on that exemption list. This applies only to unincorporated Multnomah County (mostly east county and rural areas). Portland, Gresham, Troutdale, Fairview and Wood Village enforce their own municipal sign codes, not this one.

Violations & Fines

Oversized or overheight lawn signs, or signs left up past six months, are subject to removal and the County's standard zoning code enforcement process for prohibited/nonconforming signs under MCC Chapter 39.

Frequently Asked Questions

Can I put a garage-sale sign in my yard in unincorporated Multnomah County?
Yes, as a lawn sign, but it can't be bigger than 3 square feet or taller than 42 inches, and it must come down within six months.
Does this apply if I live in Portland?
No. Portland has its own sign code; MCC Chapter 39 only governs unincorporated Multnomah County.

Sources & Official References

Other rules in Multnomah County

All Multnomah County rules

Compare Multnomah County to another location·View the Oregon sign regulations overview

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Garage Sale Signs in Cities Across Multnomah County