The Census Bureau partnered with State Data Centers (SDCs) from each state, the District of Columbia, and the Commonwealth of Puerto Rico to delineate PUMAs during the 2020 PUMA program. While the SDCs were the official program participants, the Census Bureau encouraged SDCs to involve other interested data users to ensure newly delineated PUMAs met the needs of a variety of data users.

Three training webinars, two in October and one in December, were conducted by the Census Bureau for participants in late 2021. Delineation occurred over a 90-day review period from November 2021 through January 2022, after the publication of population counts and census tracts from the 2020 Census. The final PUMAs and associated data will be available online for public use beginning in the summer of 2022.

The Census Bureau is no longer accepting submissions for the 2020 PUMA. The following documents are available for reference only.

For questions regarding the 2020 PUMA program, contact the Census Bureau at geo.puma@census.gov.

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