Plumas County, CA Sign Regulations: Political Signs (2026)

General sign standards for unincorporated Plumas County are set in Title 9, Chapter 2, Article 4, Sec. 9-2.416 (Signs), with each zoning district referencing those general requirements (for example, Sec. 9-2.1807 for the R-20 Rural Zone). The county code does not impose a separate political-sign permit scheme; temporary political/campaign signs are primarily governed by California state law. Under Business & Professions Code Sec. 5405.3, a 'temporary political sign' encouraging a particular vote may be placed no sooner than 90 days before the scheduled election and must be removed within 10 days after the election, must be no larger than 32 square feet, and requires a Statement of Responsibility filed with Caltrans (Outdoor Advertising) identifying who will remove it. State law and Government Code Sec. 65850.5 further restrict placement within the right-of-way of any highway and within 660 feet of a landscaped freeway. Courts treat political/noncommercial signs as protected speech, so local rules generally may regulate size, placement, and duration but not the message. On your own private property in unincorporated Plumas County, place political signs out of the road right-of-way and outside required sight-distance areas, and observe the zone's general sign standards in Sec. 9-2.416. Confirm specifics with the Plumas County Planning Department and, for signs near state highways, with Caltrans.