U.S. Census Bureau

State Population Totals and Components of Change: 2020-2022 Each year, the United States Census Bureau produces and publishes estimates of the population for the nation, states, counties, state/county equivalents, and Puerto Rico. With each annual release of population estimates, the Population Estimates Program revises and updated the entire time series of estimates from April 1, 2020 to July 1 of the current year.

US : NAICS Sectors, Small Employment Sizes An enterprise is a business organisation consisting of one or more domestic establishments that were specified under common ownership or control. The enterprise and the establishment are the same for single-establishment firms. Each multi-establishment company forms one enterprise - the enterprise employment and annual payroll are summed from the associated establishments.

Congressional Districts 2012 Census Results, U.S. Census Bureau

Note:  The dataset is combination of two following datasets. https://www2.census.gov/programs-surveys/popest/tables/2020-2021/state/detail/https://knoema.com/USRAGE2013/ https://www2.census.gov/programs-surveys/popest/tables/2020-2021/state/detail/https://knoema.com/USRSD2013/  

The US Presidential election takes place every 4 years and Congressional election happens every 2 years. National elections generally fall into two categories: elections where congressional seats are the highest offices decided and years where voters decide on the office of the President and congressional seats.To avoid confusion with presidential elections, the source refers to non-presidential year elections as “congressional elections" and the data is published at 4 years interval Reference link: https://www.census.gov/library/publications/2015/demo/p20-577.html

U.S. Regional Population, Census Data