Colorado’s population surpassed 6 million in the first half of 2025, according to new estimates released on Tuesday by the U.S. Census Bureau, even as overall growth slowed amid declining migration.

DENVER (KDVR) — Colorado has more people than ever before, based on new United States Census Bureau data. The U.S. Census Bureau released its “Vintage 2025 data,” which is its most up-to-date data. In ...

Colorado has long been one of the nation’s youngest states. But as years pass and residents who moved here decades ago celebrate more birthdays, the tide is shifting. Now, though still a ...

Colorado’s population broke 6 million in 2025, according to the latest U.S. Census estimates. But the state crawled past that milestone with an annual growth rate of just 0.4%, its slowest in decades.