After the community areas were introduced, the University of Chicago Press published data sorted by them from the 1920 and 1930 Censuses, as well as a citywide 1934 census to help collect data related to the Great Depression, in what was known as the "Local Community Fact Book". With the exception of 1970 (whose data was published in 1980), it continued this publication for every subsequent census through 1990, expanding in the 1960s to also cover major suburbs of Chicago. The Chicago Metropolitan Agency for Planning continues this work by periodically publishing "Community Snapshots" of the community areas and suburbs, the most recent being data from 2017 published .