ACS Data Users Group

Does anyone know what year PUMAs and Census tracts are used for the 2021 ACS 5 year tables ? I need a list of tracts for each PUMA that applies to the ACS 2017-2021 geographies.

Thanks

2020 Tracts, PUMAs are not immediately revised,

Dear Andrew,

If I want to "loop" over all tracts (ACS 2017-2021) in a PUMA should I use this file

https://www.census.gov/programs-surveys/geography/guidance/geo-areas/pumas.html

"2020 Census tract to 2020 PUMA Relationship File"

www2.census.gov/.../2020_Census_Tract_to_2020_PUMA.txt

Thanks,

Dave

It looks they are on the same schedule that they were on last census. Both for urban rural classifications and for PUMAs, they put them out for 2022.

They will probably be used in the 2022 ACS, and the five year 2022 ACS and PUMS. Last time around they put out both two sets of PUMAs depending upon the year collected for the PUMS. For the tabulated data they used the new PUMAs starting in 2012, I think that is what all of this implies.

Andy

Dear Andy,

The relationship file that I referenced is for the 2020 PUMAs (posted on the census website) but they are not in use yet for the current 2021 PUMS data (I use the API). The relationship file in the post has a lot of PUMAs that do not exist in the 2021 PUMS data. So the PUMS data is still using the 2012 (or so) PUMAs. You have to use the GEOCORR rcrosswalk/relationship file to get 2020 tracts in a 2012 PUMA. This is the best that you can do until the 2022 ? PUMS data comes out which I assume will use the 2020 PUMAs I think that there is some "apples to oranges" going on here. The 2017-2021 ACS detail tables use the 2020 tracts and the 2021 PUMs uses the 2012 PUMAs. Very confusing.

I'm using Small Area Estimation (SAE) to take a multiway 2021 PUMS cross tabulation and adjusting it with 2021 ACS tract level detail tables for the marginals.

Dave

That is basically what I said.