Yes, I'd say that is quite low...but it really depends on a lot of things. You are in So Cal...which probably has a greater range of incomes than anywhere else.
Also, you need to decide what will work for you as far as selling files, prints or both. If you include a CD of image files...they won't buy any more prints from you. So you should price that disc high enough so that it makes up for any print sales that you would expect. If you want to make money on print sales, then don't offer the disc or raise the price of it high enough that most people will buy the prints instead.
On one hand, it's much easier for you to just hand over a disc and be done with it. However, there are some downsides to that. Firstly, you take the finished product out of your hands. They might print the images on typewritter paper and hang them for everyone to see...which isn't good advertising for you. If you sell the prints, you can be sure they are top quality before you hand them to the client.
Also, while it's easy to just give them the disc, your contact with them might stop there. If you are going back and forth with them about reviewing images and choosing which prints they want...it takes up more of your time but it can also build a good relationship with them, which may lead to more work down the road.
As you can see...the simple question of 'How much should I charge for....." is a loaded question and should be part of your overall business plan.
One thing is for certainly; setting your prices too low can be very detrimental so thing long and hard about that.