Brian,

Tell me something. Do you want to use these data for individual block groups or do you want to aggregate BGs to larger areas, such as TAZs? I hope you know that the sampling errors for single BG data are so high as to render the data absolutely useless. I think that's why you can't find the numbers.

Patty Becker

On Fri, Feb 15, 2013 at 3:35 PM, Brian Chenault <bchenault@hrtpo.org> wrote:

Hello,

Brian Chenault from the Hampton Roads Transportation Planning Organization here. We are trying to collect several pieces of data at the block group level using 2007-2011 ACS 5-year estimates. Using the Census’ Summary File Excel Retrieval Tool, we are able to retrieve basic population data at the block group level. However, data at the block group level is not provided for poverty, language spoken at home, etc. This appeared to be the case even when examining 2006-2010/2005-2009 5-year estimates. Has this information not been “filtered down” from the census tract level yet? How is one supposed to go about gathering this type of updated information at the block group level?

Much appreciated,

Brian

<image001.png>

Brian Chenault

Community Outreach Planner

Hampton Roads Transportation Planning Organization

The Regional Building | 723 Woodlake Drive | Chesapeake, Virginia | 23320

bchenault@hrpdcva.gov | http://www.hrtpo.org | Phone: 757.420.8300 | Fax: 757.523.4881

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Patricia C. (Patty) Becker
APB Associates/Southeast Michigan Census Council (SEMCC)
28300 Franklin Rd, Southfield, MI 48034
office: 248-354-6520
home:248-355-2428
pbecker@umich.edu