Ours is semi volunteer. They train and respond when needed, but there are several paid professionals that man the station. It's funded mostly by property taxes. Then there is CAL Fire which covers the whole state, summer seasonal workers for the ground crews and CAL Fire runs the air fleet as well. Right now southern CA is having the big fires.♧
We have numerous brush fires around the area. Fortunately they usually get taken care of pretty quickly. Our local volunteer fire department's resources are just about depleted. People need to step up and pledge a little money to help out. Me for one.