Population in City estimates for major cities comes from the table: Annual Estimates of the Resident Population for Incorporated Places of 50,000 or More, Ranked by July 1, 2021 Population: April 1, 2020 to July 1, 2021.
Population in City Ranking ranks the top 75 cities in the United States with 1 being the most populous city and 75 being the least populous city in a given year. The cities included here are the most populous 75 cities in 2017, even if not all of those cities were in this group in prior years.
Population Rate of Change Per 1,000 represents the change in city population in a given year for every 1,000 residents.
The U.S. Census Bureau includes the following note about methodology: "Areas are included in this table if they exceed the stated threshold at any point in the time series. The estimates are based on the 2010 Census and reflect changes to the April 1, 2010 population due to the Count Question Resolution program and geographic program revisions. All geographic boundaries for the 2019 population estimates series are as of January 1, 2020. An "(X)" in the 2010 Census field indicates a locality that was formed or incorporated after the 2010 Census. Additional information on these localities can be found in the Geographic Boundary Change Notes (see https://www.census.gov/programs-surveys/geography/technical-documentation/boundary-change-notes.html. For population estimates methodology statements, see http://www.census.gov/programs-surveys/popest/technical-documentation/methodology.html."
Source: U.S. Census Bureau, Population Division