Uploaded March 2026 | Updated September 2026, 3 weeks ago
Users of the 2018-2022 ACS 5-Year PUMS file in the Microdata Access Tool (MDAT) may have noticed that PUMAs are no longer available among the list of geographies. But why is that? In this tutorial we’ll help you understand the concept of Dual Vintage PUMAs in the ACS 5-Year PUMS, why these changes temporarily occurred, and highlight some things to keep in mind before using PUMAs from the 2022 ACS 5-Year PUMS in our Microdata Access Tool.
2020 PUMA Names: www2.census.gov/geo/pdfs/reference/puma2020/2020_PUMA_Names.pdf
2010 PUMA Names: www2.census.gov/geo/pdfs/reference/puma/2010_PUMA_Names.pdf
Using Dual Vintage PUMAs in MDAT Video tutorial: census.gov/library/video/2025/adrm/using-dual-vintage-pumas-in-the-mdat.html
data.census.gov Resources Page: census.gov/data/what-is-data-census-gov.html
More video tutorials: census.gov/data/what-is-data-census-gov/guidance-for-data-users/video-tutorials.html
#ExploreCensusData
Users of the 2018-2022 ACS 5-Year PUMS file in the Microdata Access Tool (MDAT) may have noticed that PUMAs are no longer available among the list of geographies. But why is that? In this tutorial we’ll help you understand the concept of Dual Vintage PUMAs in the ACS 5-Year PUMS, why these changes temporarily occurred, and highlight some things to keep in mind before using PUMAs from the 2022 ACS 5-Year PUMS in our Microdata Access Tool.
2020 PUMA Names: www2.census.gov/geo/pdfs/reference/puma2020/2020_PUMA_Names.pdf
2010 PUMA Names: www2.census.gov/geo/pdfs/reference/puma/2010_PUMA_Names.pdf
Using Dual Vintage PUMAs in MDAT Video tutorial: census.gov/library/video/2025/adrm/using-dual-vintage-pumas-in-the-mdat.html
data.census.gov Resources Page: census.gov/data/what-is-data-census-gov.html
More video tutorials: census.gov/data/what-is-data-census-gov/guidance-for-data-users/video-tutorials.html
#ExploreCensusData
