San Mateo County, CA Public Conduct: Loitering Rules (2026)

44 ("Loitering and Public Drinking of Alcohol") targets loitering and open drinking around premises that sell alcohol in the unincorporated areas the County directly polices; incorporated cities like Redwood City, San Mateo, and Daly City enforce their own municipal codes instead. 020 makes it unlawful for any person to loiter in, on, or about buildings and places open to the public where alcoholic beverages are sold. 030 defines "loiter" narrowly, as to linger, wait, or delay in and about the designated places with no lawful purpose, so a person with a legitimate reason to be there (waiting for a ride, meeting a friend inside) is not automatically in violation.

040 defines the covered premises broadly: any liquor store, liquor outlet, inn, tavern, bar, or saloon, or any premises where the owner, tenant, or occupant sells alcoholic beverages to the public under an on-sale or off-sale liquor license of any classification. 010, separately bans consuming any alcoholic beverage on a highway, street, alley, sidewalk, public parking lot, or pedestrian walkway within 1,000 feet of a building or place open to the public where alcohol is sold, though that section does not make punishable any act already prohibited under state law. The chapter traces to Ordinance No. 2043, adopted May 12, 1970, and carries forward the prior code's Section 3195 series. 010(a).