The more things change, the more they stay the same. At least that was the case with the latest list of the nation's 100 largest public school districts. Some grew (63), some shrank (37), some climbed or fell a few notches, but when all the 2009-10 enrollment numbers were tallied, the 100 districts on the list were the same as those in 2008-09. This article presents "American School & University"'s 2011 list of the 100 largest school districts by enrollment with additional per-pupil expenditure (PPE) data and comparison data on 1-year, 10-year, and 20-year changes in enrollment.