Sign Regulations in Mercer County, NJ (2026)
2 rules for unincorporated Mercer County, New Jersey.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Mercer County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Garage Sale Signs
Mercer County bars placing advertising signs, including garage-sale signs, along any county road or right-of-way without a right-of-way occupancy permit approved by the County Engineer.
Mercer County Bans Unpermitted Roadside Signs
Significant RestrictionsMercer County Code § 5.03.040(A)(2)
Placement of advertising signs and/or structures along any County road, street, or right-of-way, or other road, street, or right-of-way under jurisdiction of the County of Mercer shall not be permitted. (3) A County right-of-way occupancy permit shall be required for the permanent placement of utilities, signs, mailboxes and any other appurtenances that are permitted to exist within public r...
Digital Billboards
Mercer County prohibits placing advertising signs and structures, including digital billboards, along any county road, street, or right-of-way it controls, under the county's right-of-way construction and occupancy code.
Mercer County Bans Roadside Digital Billboards
Heavy Restrictions§ 5.03.040
Placement of advertising signs and/or structures along any County road, street, or right-of-way, or other road, street, or right-of-way under jurisdiction of the County of Mercer shall not be permitted. (3) A County right-of-way occupancy permit shall be required for the permanent placement of utilities, signs, mailboxes and any other appurtenances that are permitted to exist within public r...
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