According to the U.S. Census Bureau’s latest estimates, the U.S. resident population grew by 1,781,060 to a total population of 341,784,857. The population grew at a rate of 0.5%, a sharp decline from the near 1.0% growth in 2024. The growth rate was the lowest since 2021 when it grew at 0.2%. The vintage population estimates are released annually and represent the change in the U.S. population between July 1st of 2024 and 2025.
The primary source of population growth continued to be net international migration. For 2025, the level of net international migration was less than half of its level in 2024, falling from 2.7 million to 1.3 million. Natural change, represented as births minus deaths, was up marginally from 514,277 to 518,858 in 2025. The decline in net international migration and stable natural change led to lower population growth nationally between 2024 and 2025.
Each region in the U.S. experienced population growth over the period. The South led in population growth at 0.9%, followed by the Midwest at 0.4%. Meanwhile, the West grew 0.3%, while the Northeast grew the least at 0.2%.
At the state level, 45 States and the District of Columbia saw a population increase over the year. South Carolina had the highest population percentage growth, at 1.5%. This was followed by Idaho (1.4%) and North Carolina (1.3%). Numerically, Texas experienced the largest population increase, gaining 391,243. This was followed by Florida at 196,980 and North Carolina at 145,907.
Five states and Puerto Rico experienced population declines. The population of Puerto Rico fell by 0.6%, followed by Vermont at 0.3% and Hawaii at 0.1%. The other states that experienced population declines were West Virgina, New Mexico and California
California remained the most populous state with a population of 39,355,309. The next most populous state was Texas at 31,709,821. To round out the top five states by total population, the proceeding highest were Florida (23,462,518), New York (20,002,427), and Pennsylvania (13,059,432).