These population projections for the nation overall, and for all 50 states (and the District of Columbia), were produced and released by the Weldon Cooper Center, Demographics Research Group in December 2018. The projections, which were produced using the most recent population estimates and census data from the U.S. Census Bureau, detail changes between 2020 and 2040 in overall population and in subgroups by age and sex.

The Cooper Center projections have been widely used by many federal agencies and states. Numerous data users were referred by the Census Bureau to the Cooper Center website, including the Congressional Budget Office. The evaluation of the 2018 projections for 2020 has shown that the Cooper Center projections are highly accurate compared to the 2020 Census Count.

The citation for the National Population Projections should read, University of Virginia Weldon Cooper Center, Demographics Research Group. (2018). National Population Projections. Retrieved from https://demographics.coopercenter.org/national-population-projections


National population projections release schedule:

  • A new round of national and 50-state population projections for 2030-2050, benchmarked on the 2020 Census  |  by Fall 2023



Projections for the 50 States and D.C.

The following Excel files contain aggregate population data for each state and the nation.You can also access our national population projections methodology.

  • Total Population
  • Age and Sex
    The excel document contains several worksheets; please click on the tabs at the bottom of the document to view the 2020, 2030, and 2040 projections as well as percent population 65+ and median age.

Related Articles & Maps

Mean Center of Population for the United States: 1790 to 2040

US Center of Population map


Dr. Shonel Sen, Projections Program Manager, Weldon Cooper Center at shonel.sen@virginia.edu | 434.982.5861