How counties that have topped one million population have changed over time. Learn more in this America Counts story.





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America Counts: Stories Behind the Numbers

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Only 50 U.S. Counties Had Populations Over a Million in 2024

Fifty or 1.6% of the United States’ 3,144 counties had at least one million people on July 1, 2024, more than double the number (23) in 1970.

According to the U.S. Census Bureau’s county-level population estimates, which date back to 1970, only 54 counties have ever crossed the one-million-person mark. By 2024, four had slipped below one million, bringing the total to 50.

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Despite representing only a sliver of the nation’s counties, around 30% of the total U.S. population lived in these million-person counties from 1970 to 2024.

A new U.S. Census Bureau data visualization explores these million-person counties and how they changed during this 54-year span.

*Continue reading [ [link removed] ]* to learn more about:


* The most populous and least populous million-person counties
* Counties that dropped below one million since 1970
* Population trends of million-person counties



?? Related Data Viz

Data Visualization: Million-Person Counties: 1970-2024 [ [link removed] ]

Use our new data visualization to explore counties in the United States with 1 million or more people from 1970 to 2024.

*Data Viz* [ [link removed] ]






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You May Be Interested In

U.S. Population Grows at Fastest Pace in More Than Two Decades

Pedestrians at crosswalk on 5th Avenue in New York City. [ [link removed] ]

The nation’s population grew by about 1% from 2023 to 2024, outpacing average annual growth since 2000 and signaling an end to tepid growth.



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