Explore the top 10 most populous U.S. states in 2025, including fun facts, population stats, and what makes each state stand out.

With the list below you can find out if it’s among the smallest ones. Without further ado, the time has come to finally present you with the list of 10 smallest states in the US by population: 10.

Delaware was the eighth-highest state in percentage growth in population from 2023 to 2024.