Population Of Colorado In 2025. Increases between censuses of 30% are not uncommon, and if that trend continues, the numbers could comfortably exceed 6 million at the next census in 2020. Most states in the us are currently experiencing population growth.

Census bureau 2023 county population estimates, march 2025 3/20/2025  — many coloradans who move out of state don’t stray far, according to newly released census bureau data.