Median Age Of Us Population 2024. Monthly population estimates by age, sex, race and hispanic origin for the united states: Roughly a quarter (787) had a median age below the national median age in 2022, 17 more than in 2021 when 770 counties had median ages under the then 38.7 national median age.

States by median age overall, maine had the highest median age by state in 2022 at 45 years old. Population, which represents the age at which half the population is older and half is younger, is projected to increase over time in all projection scenarios.