There are several casinos in California that allow 18-year-olds to gamble. However, some casinos may have restrictions on certain areas of the casino floor due to liquor licensing authorities since alcohol is served on the premises. Here is a list of some of the casinos in California that allow 18-year-olds to gamble:

• Barona Casino, Lakeside
• Casino Pauma, Pauma Valley
• Chicken Ranch Casino, Jamestown
• Eagle Mountain Casino, Porterville
• Gold Country Casino, Oroville
• Golden Acorn Casino, Campo
• Lucky Bear Casino, Hoopa
• Morongo Casino Resort, Cabazon
• Red Fox Casino, Laytonville
• Table Mountain Casino, Friant
• Coyote Valley Casino, Redwood Valley (18+ at the mini casino “Gasino” 21+ at the main casino)
• Viejas Casino, Alpine (18+ to enter bingo and slot parlor, 21+ to enter table games area)
• Tachi Palace, Lemoore (18+ to play bingo, 21+ to play table games)

Note that this list is not exhaustive, and it is always best to check with the casino ahead of time to confirm their age restrictions. Additionally, some casinos may have different age restrictions for different areas of the casino, so it is important to be aware of these restrictions before entering the casino.