I don't know about the LA/Orange County school districts, but this year the San Diego school district has that entire week off, so there may be a few more people headed to Disneyland on Monday-Wednesday of that week than there might normally be.
I want to warn you. We have been at DL for the last four Thanksgivings and we have found that from Wed. on it is pretty packed with it being absolutely jammed by Friday. This year we decided to wait until after the Holidays because we have a lot of little ones in our family and it is practically impossible to stand in lines with them all day. I'm sure you will still have a great time.
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