I haven't used SAS in years and years so I don't recall how transferrable this resource is.... These two links were extremely helpful with using pums data in R.

https://walker-data.com/census-r/introduction-to-census-microdata.html

https://walker…

The poverty level is computed by the US Census Bureau following the Office of Management Statistical Directive #14 https://www.census.gov/topics/income-poverty/poverty/guidance/poverty-measures.html  The POVPIP value in the PUMS data is determined based…

Yes, the Public Use Microdata Sample (PUMS) data from the U.S. Census Bureau can be used to analyze the distribution of household sizes across various income levels. By leveraging PUMS data, you can derive insights into the number of households based…

I have R code that uses the API to download a single table (or PUMS data ) for a single geography.  The 3 sources API, ftp and data.census.gov don't always produce the same thing.  Especially the PUMS data and missing values.

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…

Dear Lorna,

Here is some additional documentation that might be useful.

Here is some documentation on how the income and expense items in the SPM PUMS file are computed.

https://www2.census.gov/programs-surveys/supplemental-poverty-measure/technical-documentation…

Since the geography only goes down to the state level you can use PUMS data.

Dave Dorer