President Donald Trump's immigration crackdown has contributed to a year-to-year drop in the U.S. growth rate as the nation's population hit nearly 342 million people in 2025. That's according to population estimates released Tuesday by the U.S. Census Bureau. The 0.5% growth rate for 2025 was a sharp drop from 2024's almost 1% growth rate, which was the highest since 2001 and was fueled by immigration. The 2024 estimates put the U.S. population at 340 million people. Immigration increased by 1.3 million people last year, compared with 2024's increase of 2.8 million people. Trump made a surge of migrants at the southern border a central issue in his winning 2024 Republican presidential campaign.