I don't know specifically about Sacramento, but I think in general it is ok to take guests. I understand they watch the ceremony from a separate place from the people taking the oath. I am just saying what I remember reading. By separate I mean they don't stand besides you, but probably wait at the back of the place, or something like that.
If there is a Sacramento thread it would be good to post your question there too, but I don't think it gets as much traffic as the San Jose thread, so chances are nobody will answer before you have to go to the ceremony. So, my personal advice would be to take your family along. By the way, they discourage to bring little kids, as they become fussy and make noise and in a way ruin a bit the ceremony experience for the rest of the people, so use your better judgement according to the age of your kids and how they will behave.
My 2 cents.