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This is a list of the 100 most populous of the 3,144 counties in the United States based on the national decennial US census conducted on April 1, 2020, and vintage Census population estimates for July 1, 2023.
Shows estimates of current USA Population overall and people by US state/county and of World Population overall, by country and most populated countries.
US County Populations 2024. 400 counties* US County Population Trends. Largest Counties. According to the most recent United States Census, Los Angeles County in California is the largest county in the nation, with a total population of 10,150,558 – an increase of 3.5% since 2010.
^ In the U.S. territories, the U.S. Census Bureau defines the following as county-equivalents: the districts and atolls of American Samoa, Guam as one entity, the municipalities of the Northern Mariana Islands, the municipalities of Puerto Rico, the islands of the U.S. Virgin Islands, and the islands of the U.S. Minor Outlying Islands.[1][2] The...
27 maj 2023 · Population statistics in maps and charts for states, counties, cities, places, urban areas and metropolitan areas in the United States of America.
There are 3,242 counties and county equivalent administrative units in total, including the District of Columbia and 100 county-equivalents in the U.S. territories. There are 41 independent cities in the United States.
