South Carolina had the highest population growth over a single year.
The Census Bureau published on Tuesday population changes from July 1, 2024, to July 1, 2025, and most states grew in size but at a slower pace than in 2024.
You can hover over the states and Washington, DC, in the map below to see how populations changed.
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South Carolina’s population grew 1.5%, driven by more people moving in from elsewhere in the US than out to other areas of the country. Meanwhile, Vermont shrank 0.3%, due to more deaths than births and more people moving out elsewhere in the US than moving in from other areas of the country.
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A Census Bureau news release said that the overall population increased in each of the four regions, but the Midwest was the only one where every state climbed.
“From July 2024 through June 2025, the Midwest also saw positive net domestic migration for the first time this decade,” Marc Perry, senior demographer at the Census Bureau, said per the news release.
Perry added that while more people moving in from elsewhere in the US than leaving for somewhere else in the country was modest in the Midwest, “this is still a notable turnaround” from previous losses.
Net immigration to the US was lower than in past years
The US population increased by just 0.5%, the lowest uptick since 2021. The Census Bureau’s Christine Hartley said this was mainly because net international migration — the number of people who moved into the US rather than out — plunged to 1.3 million from 2.7 million.
Jed Kolko, a senior fellow at the Peterson Institute for International Economics, said in a Substack post that net international migration last year was higher than where it stood in the 2010s and doesn’t reflect all the immigration changes the Trump administration made since President Donald Trump took office again, since the estimate stops at the summer.
Nineteen states and Washington, DC, had more people moving out of them to somewhere else in the US than people moving in from other areas of the country. When adjusted for population size, New York, Hawaii, and Alaska were most affected.
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