^Hi, you can find data for CSAs, MSAs, Micropolitan Areas, places, census tracts, Congressional Districts, etc in the American FactFinder (in the Georgraphies section) -- that's where i've been finding the most recent data from the 2010 Census. It was the same for the 2000 Census although there was no such thing as a CSA (CMSA was probably the most similar). However, you won't find complete CSA data for Summary File 1 until all States have been released (I basically use MSA and/or Micropolitan area data to form CSAs at the moment).
American FactFinder