Average for basic 2 or 3 bedroom apartment in OC Calif. $2600 to $3500 a month. Single family home would be closer to $4K. Going inland to Riverside or San Bernardino County is just as brutal. Add to that utilities, groceries, insurance, auto payments…. Basically you have to live with room mates to afford a roof over your head… if you are a young family you might need to have a roomie renting that third bedroom and put all your kids in one room.
One of the reasons housing is so expensive is that living in places with low cost housing will make you wind up either dead or robbed.