Population Of Usa States 2024. Its most populous states are california with a population of 39.5 million and texas with a population of 28.7 million, and its most populous city is new york city with a population. Some states saw significant increases in population, while others saw a population decline.

In 2023 was 339,996,563 , a 0.5% increase from 2022. As the nation rang in the new year, the u.s.