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Washington County, MN Sign Regulations: Freeway-Facing Signs (2026)

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

Key Facts

ROW ban
No signs (except utility warnings) in highway ROW
Illuminated sign setback
25 feet from highway, 10 feet from ROW
Large-sign sight line
Cannot block 500-foot approach view
Removal notice
30 days after Zoning Administrator notice
Enforcement
Misdemeanor under Section 9.1

Summary

Washington County prohibits nearly all signs, other than public utility warning signs, on county property or within a major highway or county road right-of-way. Illuminated signs must additionally sit at least 25 feet from the roadway surface and 10 feet from the right-of-way line.

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

(B) All signs, other than public utility warning signs, are prohibited on County property and within the public right-of-way of any major highway or County road. ... (D) Illuminated signs shall be diffused or indirect to prevent rays of light from being directed onto any major highway or County road. Illuminated signs and their support structures shall not be located closer than twenty-five (25) feet from a major highway or county roadway surface or closer than ten (10) feet from a road right-of-way line, notwithstanding more restrictive portions of this Section.

Full Breakdown

10(4)(B) bars any sign other than a public utility warning sign from county property or the public right-of-way of a major highway or county road, closing off the roadside as an advertising location outright. 10(4)(D): their light must be diffused or indirect so rays are not directed onto a major highway or county road, and both the sign and its support structure must sit at least twenty-five feet from the major highway or county roadway surface, and at least ten feet from the road right-of-way line, whichever standard in the section is more restrictive.

10(4)(M) adds a sight-line rule for any sign exceeding one hundred square feet: it cannot be erected if it would obstruct a traveler's view of approaching vehicles for five hundred feet, sit within 1,350 feet of a park or historic site, or block a scenic view of a lake, river, or wooded area. 10(4)(A) separately bans any sign whose position, shape, movement or color interferes with a traffic sign, signal, or traffic control. Together these rules keep large or illuminated advertising off the shoulders of the county's major highways and roads.

Violations & Fines

Erecting a non-utility sign within a major highway or county road right-of-way, or an illuminated sign closer than 25 feet from the roadway or 10 feet from the right-of-way line, violates Section 1.10(4)(B) and (D). Under Section 9.1, that is a misdemeanor, and any sign lacking a required permit must be removed within 30 days of written notice from the Zoning Administrator.

Frequently Asked Questions

Can I put an advertising sign along a county road shoulder in Washington County?
No. Development Code Section 1.10(4)(B) prohibits any sign other than a public utility warning sign on county property or within the public right-of-way of a major highway or county road, so roadside advertising signs facing the highway are barred outright.
How far back does an illuminated sign have to be from a major highway?
Section 1.10(4)(D) requires illuminated signs and their support structures to sit at least 25 feet from the major highway or county roadway surface, and at least 10 feet from the road right-of-way line, whichever is more restrictive, with light diffused so it doesn't shine onto the road.
Are there extra rules for large signs near highways?
Yes. Section 1.10(4)(M) bars any sign over 100 square feet from obstructing a traveler's view of approaching vehicles for 500 feet, and from sitting within 1,350 feet of a park or historic site or blocking a scenic natural view.

Sources & Official References

Other rules in Washington County

All Washington County rules

Compare Washington County to another location·View the Minnesota sign regulations overview

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