Average assisted living costs in Monterey County are the highest in California. The cost in Los Angeles, in the southern part of the state, is identical to the statewide average, which is $2,100 less than in Monterey County. Further north, seniors living in Oxnard pay $5,845, or $1,255 below the average in Monterey County. Costs drop even further outside of the expensive Bay Area; in Sacramento, for example, residents pay $5,395, which is $1,705 more affordable. In San Francisco and San Jose, both of which are among the state’s most expensive cities for assisted living, costs are $6,100 and $5,875 per month, or $1,000 and $1,225 less than in Monterey County. To the north, seniors in Napa can expect to pay $6,250 per month, which is $850 lower. In Santa Cruz, the seat of neighboring Santa Cruz County, the average cost is just $300 less at $6,800 per month.