Sign Regulations in Los Angeles County, CA (2026)

6 county-level rules, plus city-specific rules for 19 cities in Los Angeles County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Los Angeles County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Political Signs

Political signs in unincorporated LA County are protected by CA state law and the First Amendment. May be placed 90 days before election, removed within 10 days after. Maximum 32 sq ft. Cannot be placed in public ROW or within 660 ft of landscaped freeway.

Los Angeles County Political Sign Regulations

Few Restrictions

California Civil Code Sec. 4710 (HOA Noncommercial Signs / Political Signs Protected)

4710. (a) The governing documents may not prohibit posting or displaying of noncommercial signs, posters, flags, or banners on or in a member's separate interest, except as required for the protection of public health or safety or if the posting or display would violate a local, state, or federal law. (b) For purposes of this section, a noncommercial sign, poster, flag, or banner may be made of...

Full ordinance details →Official source ↗

Garage Sale Signs

Yard sale signs in unincorporated LA County are limited to 2 per sale under County Ordinance 22.140.620. Signs must be placed on the property where the sale occurs. Signs can go up no earlier than 1 day before and must be removed immediately after the sale.

Los Angeles County Garage Sale Sign Rules

Some Restrictions

Full ordinance details →Official source ↗

Holiday Displays

Holiday decorations on private property in unincorporated LA County are generally permitted. Displays must not create safety hazards or obstruct visibility. No specific duration limits. Electrical displays must meet safety codes. Community Standards Districts may have additional standards.

Los Angeles County Holiday Display Regulations

Few Restrictions

Full ordinance details →Official source ↗

Digital Billboards

Title 22.140.430 of the LA County Code prohibits digital and electronic message-center billboards in all residential zones of unincorporated areas, allowing them in commercial and industrial zones only with a Conditional Use Permit and strict brightness, dwell-time, and spacing limits.

Digital Billboards Banned In Residential, Conditional In Commercial

Heavy Restrictions

Full ordinance details →Official source ↗

Window Signs

Title 22.140.430 of the LA County Code limits window signs in commercial buildings of unincorporated areas to 25 percent of the window's glass area, bans flashing or animated displays, and allows neon and LED only with proper electrical permits.

Window Signs Capped At 25 Percent Of Glass Area

Some Restrictions

Full ordinance details →Official source ↗

Freeway-Facing Signs

Off-site signs visible from interstate and primary highways in unincorporated Los Angeles County are governed by the California Outdoor Advertising Act under Business and Professions Code §5200 et seq., which preempts most local rules and requires a Caltrans permit.