Rather than use the ACS itself as a data source I would use the CHAS data from huduser.gov:
https://www.huduser.gov/portal/datasets/cp.html
This is ACS data recompiled for HUD that provides figures for low and moderate income households down to the tract level. (The on-line query tool only goes down to places.) The data here on
households might be more recent than the latest HUD figures for low and moderate income population. It might take a bit of digging to get to the table that best serves your needs.
Cliff Cook
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From: Chuck Imbrogno <imbrogno@spcregion.org>
Sent: Wednesday, January 29, 2020 2:41 PM
To: ctpp-news@mailman.chrispy.net
Subject: [CTPP] Re: FW: Question Regarding Mapping Low Income Population by Census Tract
FTA uses Table B17024 (AGE BY RATIO OF INCOME TO POVERTY LEVEL IN THE PAST 12 MONTHS) from the 5-year ACS for the low income population data they need in their
urban formula assistance calculations. FTA uses Urban areas as the geography for their calculations. But the table also provides data at the Tract level.
As Patty noted – the error estimates are huge.
Chuck Imbrogno, Models/Data Manager
Southwestern Pennsylvania Commission
Two Chatham Center – Suite 500
112 Washington Place
Pittsburgh, PA 15219-3451
voice: 412-391-5590 ext 319
fax: 412-391-9160
From: Patricia Becker [mailto:pbecker@umich.edu]
Sent: Wednesday, January 29, 2020 2:25 PM
To: ctpp-news@mailman.chrispy.net
Cc: ctpp-news@chrispy.net
Subject: [CTPP] Re: FW: Question Regarding Mapping Low Income Population by Census Tract
If you're looking for median household income, it should be available at the tract level in the 2019 five year ACS data. You have to go to
data.census.gov to get access to that data set -- good luck. If you're willing to settle for the 2018 file (which is 80% the same data), you should still be able to go to American Factfinder (factfinder.census.gov),
where access is better. Bear in mind that the margins of error on income data at the tract level are huge.
Patty Becker
On Wed, Jan 29, 2020 at 2:09 PM Weinberger Penelope <pweinberger@aashto.org> wrote:
Hey CTPPers, I received this query, I welcome your thoughts.
We are currently looking at environmental justice factors on Urban Arterials in the Denver Metro area, and I was wondering if you might have any insights into mapping low income population by census tract. The only data I have been able to find includes low and moderate income (from HUD), and I am having trouble even finding that data at the tract level. Do you know of a good data source for this? Any help or insights would be greatly appreciated.
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Patricia C. (Patty) Becker
APB Associates/Southeast Michigan Census Council (SEMCC)
28332 Franklin Rd, Southfield, MI 48034
office: 248-354-6520
home:248-355-2428
pbecker@umich.edu