Esri Census BG with different population counts for same BG from

Discussion created by gisteacher on Jul 17, 2013
Latest reply on Jul 24, 2013 by jshimota-esristaff
Can anyone help with a question, a census question .. more particularly the census block groups you have posted .. once downloaded and compared to the census 2010 blockgroup from I determined the population counts for the block groups are different.  Attached is an example of some block groups from los angeles region .. one tab with the block groups (and id) and population counts from the Esri (above link) and a second tab for the same block groups from

My question is .. why is the Esri population counts different that the same blockgroups 2010 downloaded from Census?