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On Fri, Apr 11, 2014 at 3:22 PM, Michael Howser <[log in to unmask]> wrote: > Meg, > > > The American Community Survey 5 Year Estimate provides income data at the > block group level on an annual basis. While this data is available at the > block group, you will notice some of the margins of error will be large due > to the smaller sample size upon which these estimates are based. The latest > version of the ACS 5 Year Estimates from 2012 are available via the American > FactFinder (http://factfinder2.census.gov). The American FactFinder can be a > bit cumbersome with extracting the block group level data, and the > Connecticut State Data Center can pull these datasets in mapping friendly > formats for Connecticut (that includes anyone on this listserv too). > > I don't think the block group ACS data is available on American Factfinder. It's only in the summary file. I find the easiest way is to use the Summary File Retrieval Tool at http://www2.census.gov/acs2012_5yr/summaryfile/UserTools/. It works with Excel. The Census has also started offering geodatabases with some ACS data included. These are available by block group. Either way, watch those margins of error. The data is best used at larger geographic levels. Mara Kaminowitz, GISP GIS Coordinator ......................................................................... Baltimore Metropolitan Council Offices @ McHenry Row 1500 Whetstone Way Suite 300 Baltimore, MD 21230 410-732-0500 ext. 1030 [log in to unmask] www.baltometro.org ------------------------------------------------------------------------- This list (CTGIS-L) is an unmoderated discussion list for all CT GIS Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://listserv.uconn.edu/ctgis-l.html