Burbank, CA 91505
Free, but donations accepted
I've always been impressed by the maze out in Burbank and this year's theme is the future, one year it was I think pigs taking revenge on humans or cannibals. It's quite long and an amazing build for someone's backyard.
Boney Island Yard Haunt
4602 Morse Avenue, Sherman Oaks, CA 91432
October 17 & 18 – 6-10pm
Oct. 21-31 – 6-9pm weekdays, 6-10pm weekends
More safe for the kiddies than a teenager out for a night of fun.
18727 Crenshaw Boulevard, Torrance CA 90504
Block Party is free; suggested donation for the walk-through maze is $5 (and a bargain at the price).
It's a ninja-themed horror maze, it just sound great coming of the tongue or writing it.
and check the rest over at Hollywood Gothique, which has the best list of home haunts.