California's median HOA fee is $278 monthly, ranking ninth highest nationally. Fees are highest near the coast, with San Francisco leading at $550, followed by San Mateo, Marin, and Los Angeles. Southern California counties have the most fee-paying units, with Los Angeles having over 314,000. Statewide, 24% of homes pay HOA fees, with 31% of those fees at $400 or more, compared to a $135 national median fee.