Four in 10 US counties saw population declines in 2025, driven largely by
President Trump’s immigration crackdown. According to Census Bureau data, 1,270
Counties lost residents, a nearly 20% increase from the previous year. Major
cities like Los Angeles, Miami, and New York saw steep declines due to a
slowdown in international immigration, which had fueled post-pandemic growth.
Census predict officials negative migration trends for the first time in over 50
years, with Miami-Dade County experiencing a population drop despite
international migration.