New census estimates of county populations as of July 1, 2022, show Denver and Boulder counties recovered a portion of their pandemic-era population losses from the prior year but were still down compared to the 2020 census. Jefferson County saw its population decline for a second straight year.
*The 2020 census accounted for population on April 1, 2020, with slight adjustments later by the U.S. Census Bureau to correct for pandemic-related and other challenges.