Mara,

I may be misunderstanding what you’re after, but…

You could apply the distributions in QT-P13 to make proportionate reductions to your detailed age data (e.g., P12).  From my cursory review of the data from the Baltimore metro area, it appears that less than 2% of all blocks in the five-county area include group quarters.  Fewer than half of those blocks have group quarters populations greater than 10.  And, in total, less than 2% of the Baltimore metro area population lives in group quarters.  That is to say, your choice of estimation technique may not matter all that much.

Travis M. Brooks

Assistant MPO Planner

Jonesboro Metropolitan Planning Organization

Direct: (870) 336-7265

Internal Extension: 1272

From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of mkaminowitz@baltometro.org
Sent: Wednesday, August 29, 2012 3:16 PM
To: ctpp-news@chrispy.net
Subject: [CTPP] detailed age (block level) for population in quarters

I have a request for detailed 2010 age data by block for the population in households (aka excluding group quarters). This data is available in SF1 and SF2 at the tract level but not block. It has to be blocks because I need to aggregate up to TAZ, and our TAZ's split tract and block group boundaries.

Has anyone come across this data or found a way of estimating it? Group quarters also does not have detailed age groups so we can't just subtract.

Mara

Mara Kaminowitz, GISP
GIS Analyst
.........................................................................
Baltimore Metropolitan Council
Offices at McHenry Row
1500 Whetstone Way
Suite 300
Baltimore, MD  21230
410-732-0500 ext. 1030
mkaminowitz@baltometro.org
www.baltometro.org

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