Hello all,
I am finding discrepancies between population densities that I'm
calculating in ArcGIS using Census 2010 population data and the TIGER
geography shapefiles (in my case for the county and state level), and
population density numbers posted on Census websites. The discrepancy
is from the square mileage calculation, in particular. Does anyone know
if this is because water bodies are subtracted from the total square
mileage for the density calculation (or if there is another reason for
the discrepancy)?
Thank you,
Elizabeth
Elizabeth Hassett
Syracuse Metropolitan Transportation Council
100 Clinton Square
126 N. Salina Street, Suite 100
Syracuse, NY 13202
ehassett(a)smtcmpo.org
(P) 315-422-5716
(F) 315-422-7753
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Yes, at CB, water is substracted before calculating pop density.
From: ctpp-news-bounces(a)chrispy.net
[mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Elizabeth Hassett
Sent: Thursday, May 19, 2011 12:25 PM
To: ctpp-news(a)chrispy.net
Subject: [CTPP] Census population density calculations
Hello all,
I am finding discrepancies between population densities that I'm
calculating in ArcGIS using Census 2010 population data and the TIGER
geography shapefiles (in my case for the county and state level), and
population density numbers posted on Census websites. The discrepancy
is from the square mileage calculation, in particular. Does anyone know
if this is because water bodies are subtracted from the total square
mileage for the density calculation (or if there is another reason for
the discrepancy)?
Thank you,
Elizabeth
Elizabeth Hassett
Syracuse Metropolitan Transportation Council
100 Clinton Square
126 N. Salina Street, Suite 100
Syracuse, NY 13202
ehassett(a)smtcmpo.org
(P) 315-422-5716
(F) 315-422-7753