Louis, not all tables in the 2005-2009 ACS are available by block group - including the ones in Segments 1-8. To find details on what tables are available by block group, take a look at the 2005-2009 ACS technical documentation at http://www2.census.gov/acs2009_5yr/summaryfile/ACS_2005-2009_SF_Tech_Doc.pdf - the chart starting on page 42 of the pdf will detail the geography for each table. This chart also shows which tables are provided via American Factfinder. Nancy Gemignani California State Census Data Center Demographic Research Unit (916) 327-0103 ext 2550 From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Louis Pino Sent: Friday, September 09, 2011 2:51 PM To: ctpp-news(a)chrispy.net Subject: [CTPP] 2005-2009 ACS data Hello, I am trying to download 5-year block group data from the 2005-2009 ACS for Colorado. I have noticed many of the text sequence files are empty. It looks like the first eight tables are all empty. Specifically, I am trying to get block group data for sequence number 1 (e20095co0001000.txt). I looked at other states and these files are also empty. Am I looking in the wrong directory for block group data for these tables? Any help would be appreciated. Louis Louis Pino| Socioeconomic Analyst | Regional Planning & Operations Direct Line 303-480-6781 | Fax 303-480-6790 | E-mail lpino(a)drcog.org [cid:image001.gif@01CC6F08.B23B3D30]<http://www.drcog.org/> [cid:image002.jpg@01CC6F08.B23B3D30] Transit-oriented development<http://tod.drcog.org/> is shaping up throughout the region. Find out what people are saying about it and join the conversation. [cid:image003.jpg@01CC6F08.B23B3D30]<http://www.facebook.com/Denver.Regional.Council.of.Governments> [cid:image004.jpg@01CC6F08.B23B3D30] <http://twitter.com/#!/DRCOGorg>