17 Mar
2022
17 Mar
'22
6:09 p.m.
The Census Bureau released the five-year, 2016-2020 American Community Survey tables
today. The r-package TIDYCENSUS worked without a hitch this morning.
In case folks are interested in using TIDYCENSUS to examine the three sets of
non-overlapping periods: 2006-2010, 2011-2015 and 2016-2020, I’ve updated my R script for
all states, counties, places and the US. This is just for the means of transportation to
work, plus a few key demographic variables.
https://gist.github.com/chuckpurvis <https://gist.github.com/chuckpurvis>
Important to note is that the 2016-2020 ACS is based on 2020 Census geography. The older
datasets are based on 2010 Census geography. This isn’t a big deal if your geographic
areas haven’t changed, 2010 to 2020, but I’d be careful when comparing older (pre-2020) to
newest (2016-2020) data, especially for smaller geographies such as tracts, block groups
and places.
My next step would be to do some count checks of geographies included in Census 2020 PL
94-171 vs the 2016-2020 ACS. Check to make sure that the geographies (block groups,
tracts, places, counties) match between the Decennial 2020 and ACS 2016-2020.
And to reiterate, there is no single year ACS data for 2020. Those tables are using the
“experimental weights” and are only published at the nation and state level.
Happy St Patrick’s Day to all!
Chuck Purvis,
Hayward, California
22 Mar
22 Mar
4:23 p.m.
Chuck,
You wrote below that the 2016-2020 ACS is based on 2020 geography.
Which geographies are 2006-2010 and 2011-2015 based on?
Thanks.
Rob
PS BTW, I was able to download ACS data for my MSA using the Census’ table page
https://data.census.gov/cedsci/table?q=United%20States
From: Charles Purvis <clpurvis(a)att.net>
Sent: Thursday, March 17, 2022 6:10 PM
To: The Census Transportation Products Program Community of Practice/Users discussion and
news list <ctpp(a)listserv.transportation.org>
Subject: [CTPP News] New five-year ACS tables released today: March 17, 2022
The Census Bureau released the five-year, 2016-2020 American Community Survey tables
today. The r-package TIDYCENSUS worked without a hitch this morning.
In case folks are interested in using TIDYCENSUS to examine the three sets of
non-overlapping periods: 2006-2010, 2011-2015 and 2016-2020, I’ve updated my R script for
all states, counties, places and the US. This is just for the means of transportation to
work, plus a few key demographic variables.
https://gist.github.com/chuckpurvis
Important to note is that the 2016-2020 ACS is based on 2020 Census geography. The older
datasets are based on 2010 Census geography. This isn’t a big deal if your geographic
areas haven’t changed, 2010 to 2020, but I’d be careful when comparing older (pre-2020) to
newest (2016-2020) data, especially for smaller geographies such as tracts, block groups
and places.
My next step would be to do some count checks of geographies included in Census 2020 PL
94-171 vs the 2016-2020 ACS. Check to make sure that the geographies (block groups,
tracts, places, counties) match between the Decennial 2020 and ACS 2016-2020.
And to reiterate, there is no single year ACS data for 2020. Those tables are using the
“experimental weights” and are only published at the nation and state level.
Happy St Patrick’s Day to all!
Chuck Purvis,
Hayward, California
23 Mar
23 Mar
1:36 p.m.
Oops, I should’ve replied to the entire listserv.
2006-2010 and 2011-2015 are based on Census 2010 geography…. The geography is based on the
last year in the five-year period.
Certain geographies, like congressional districts, state legislative districts, PUMAs, may
change in the decade.
PUMAs released for 2016-2020 are most likely the older, 2010 Census-based PUMAs. That’s
because the 2020 PUMAs are just being finished up right now. They’ll probably be in future
ACS packages. I THINK the 2017-2021 ACS PUMS will be based on the 2020 Census-based PUMAs.
That should be released this fall?
MSAs may change, too, based on what OMB dictates.
There’s probably a Census Bureau Geography web page that explains all. I just don’t know
where that is!! Oh well
Chuck
On Mar 22, 2022, at 1:23 PM, Rob Case
<rcase(a)hrtpo.org> wrote:
Chuck,
You wrote below that the 2016-2020 ACS is based on 2020 geography.
Which geographies are 2006-2010 and 2011-2015 based on?
Thanks.
Rob
PS BTW, I was able to download ACS data for my MSA using the Census’ table page
https://data.census.gov/cedsci/table?q=United%20States
<https://data.census.gov/cedsci/table?q=United%20States>
From: Charles Purvis <clpurvis(a)att.net <mailto:clpurvis@att.net>>
Sent: Thursday, March 17, 2022 6:10 PM
To: The Census Transportation Products Program Community of Practice/Users discussion and
news list <ctpp(a)listserv.transportation.org
<mailto:ctpp@listserv.transportation.org>>
Subject: [CTPP News] New five-year ACS tables released today: March 17, 2022
The Census Bureau released the five-year, 2016-2020 American Community Survey tables
today. The r-package TIDYCENSUS worked without a hitch this morning.
In case folks are interested in using TIDYCENSUS to examine the three sets of
non-overlapping periods: 2006-2010, 2011-2015 and 2016-2020, I’ve updated my R script for
all states, counties, places and the US. This is just for the means of transportation to
work, plus a few key demographic variables.
https://gist.github.com/chuckpurvis <https://gist.github.com/chuckpurvis>
Important to note is that the 2016-2020 ACS is based on 2020 Census geography. The older
datasets are based on 2010 Census geography. This isn’t a big deal if your geographic
areas haven’t changed, 2010 to 2020, but I’d be careful when comparing older (pre-2020) to
newest (2016-2020) data, especially for smaller geographies such as tracts, block groups
and places.
My next step would be to do some count checks of geographies included in Census 2020 PL
94-171 vs the 2016-2020 ACS. Check to make sure that the geographies (block groups,
tracts, places, counties) match between the Decennial 2020 and ACS 2016-2020.
And to reiterate, there is no single year ACS data for 2020. Those tables are using the
“experimental weights” and are only published at the nation and state level.
Happy St Patrick’s Day to all!
Chuck Purvis,
Hayward, California
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3:11 p.m.
This is the Census web page that Chuck has willed into being...
https://www.census.gov/programs-surveys/acs/geography-acs/geography-boundar…
See the footnotes.
New ZCTAs will be in 2021 ACSNew PUMAs will be in 2022 ACS
New MSAs (and NECTAs) will be in 2023 ACS
I saw the link to this page in the ACS Data Users Group Forum, so I guess they get to
share credit with Chuck...
On Wednesday, March 23, 2022, 01:37:28 PM EDT, Charles Purvis <clpurvis(a)att.net>
wrote:
Oops, I should’ve replied to the entire listserv.
2006-2010 and 2011-2015 are based on Census 2010 geography…. The geography is based on the
last year in the five-year period.
Certain geographies, like congressional districts, state legislative districts, PUMAs, may
change in the decade.
PUMAs released for 2016-2020 are most likely the older, 2010 Census-based PUMAs. That’s
because the 2020 PUMAs are just being finished up right now. They’ll probably be in future
ACS packages. I THINK the 2017-2021 ACS PUMS will be based on the 2020 Census-based PUMAs.
That should be released this fall?
MSAs may change, too, based on what OMB dictates.
There’s probably a Census Bureau Geography web page that explains all. I just don’t know
where that is!! Oh well
Chuck
On Mar 22, 2022, at 1:23 PM, Rob Case <rcase(a)hrtpo.org> wrote:
Chuck,You wrote below that the 2016-2020 ACS is based on 2020 geography.Which geographies
are 2006-2010 and 2011-2015 based on?Thanks.RobPS BTW, I was able to download ACS data for
my MSA using the Census’ table page https://data.census.gov/cedsci/table?q=United%20States
From: Charles Purvis <clpurvis(a)att.net>
Sent: Thursday, March 17, 2022 6:10 PM
To: The Census Transportation Products Program Community of Practice/Users discussion and
news list <ctpp(a)listserv.transportation.org>
Subject: [CTPP News] New five-year ACS tables released today: March 17, 2022 The Census
Bureau released the five-year, 2016-2020 American Community Survey tables today. The
r-package TIDYCENSUS worked without a hitch this morning. In case folks are interested in
using TIDYCENSUS to examine the three sets of non-overlapping periods: 2006-2010,
2011-2015 and 2016-2020, I’ve updated my R script for all states, counties, places and the
US. This is just for the means of transportation to work, plus a few key demographic
variables. https://gist.github.com/chuckpurvis Important to note is that the 2016-2020
ACS is based on 2020 Census geography. The older datasets are based on 2010 Census
geography. This isn’t a big deal if your geographic areas haven’t changed, 2010 to 2020,
but I’d be careful when comparing older (pre-2020) to newest (2016-2020) data, especially
for smaller geographies such as tracts, block groups and places. My next step would be to
do some count checks of geographies included in Census 2020 PL 94-171 vs the 2016-2020
ACS. Check to make sure that the geographies (block groups, tracts, places, counties)
match between the Decennial 2020 and ACS 2016-2020. And to reiterate, there is no single
year ACS data for 2020. Those tables are using the “experimental weights” and are only
published at the nation and state level. Happy St Patrick’s Day to all! Chuck
Purvis,Hayward, California _______________________________________________
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Rob Case