Yes, 2005-2009 was 2000 census tracts/BG (there were a couple of exceptions - see the link below) and 2006-2010 was 2010 census tracts/BG. However, for places, the CDP are from the census but the boundaries for incorporated cities/towns reflect the boundary as of January 1, 2009. See the ACS Geography page at http://www.census.gov/acs/www/data_documentation/geography/ 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(a)chrispy.net] On Behalf Of Nancy Reger Sent: Thursday, October 04, 2012 1:25 PM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] TIGERweb v2.0 Dumb question from me- Is the 2005-2009 ACS data in 2000 census geography, and the 2006-2010 ACS data in 2010 census geography? Can someone answer? Thanks, Nancy From: ctpp-news-bounces(a)chrispy.net<mailto:ctpp-news-bounces(a)chrispy.net> [mailto:ctpp-news-bounces(a)chrispy.net]<mailto:[mailto:ctpp-news-bounces(a)chrispy.net]> On Behalf Of Elaine.Murakami(a)dot.gov<mailto:Elaine.Murakami(a)dot.gov> Sent: Thursday, October 04, 2012 4:01 PM To: ctpp-news(a)chrispy.net<mailto:ctpp-news(a)chrispy.net> Subject: [CTPP] TIGERweb v2.0 Hope that some of you will have the time and interest in reviewing this new product (Beta) from the Geography Div at the Census Bureau. Please share your reviews and what you learn with our CTPP listserv! Thanks in advance. This notice came to me via the Association of Public Data Users (APDU). Census Releases TIGERweb v2.0 http://tigerweb.geo.census.gov/tigerwebmain/tigerweb_main.html The U.S. Census Bureau has released TIGERweb v2.0 (beta). This release includes the following: * Redesign of the TIGERweb main page * New version of the TIGERweb viewer application with the following functionality: o Capability to view current, ACS 2011, ACS 2010, and Census 2010 legal and statistical boundaries o New tool to compare entities from two different vintages o Print o Dynamic Legend o Terrain and Imagery background * An additional viewer, TIGERweb2010, dedicated to Census 2010 data * New map services dedicated to Census 2010 data which now include data for the island areas * New map services to support the following entities: o Estates o Subbarrios o Public Use Microdata Areas o Urban Growth Areas o ZIP Code Tabulation Areas o 112th Congressional Districts Elaine Murakami FHWA Office of Planning