Co Population 2024 Trends. More deaths, a decline in births and a steeper drop in net migration. The population of colorado in 2023 was 5,877,610 , a 0.63% increase from 2022.

Colorado’s population has been boosted by young adults, aged 22. Peak global population and other key findings from the 2024 un world population prospects falling fertility rates, migration movements, and china’s population decline.