US Median Age Up 3.4 Years Since 2000 To 38.8 Years

Via press release from the US Census Bureau:

The last two decades have seen the country grow continuously older. Since 2000, the national median age – the point at which one-half the population is older and one-half younger – has increased by 3.4 years, with the largest single-year gain of 0.3 years coming in 2021, bringing it to 38.8 years, according to newly released 2021 Population Estimates from the U.S. Census Bureau.

Median age for most states also increased from 2020 to 2021, indicating their populations are getting older overall. “The states with the lowest median ages saw the largest increases between 2020 to 2021.

While Utah remained the youngest state in the nation, the state’s median age increased by 0.3 years from 31.5 to 31.8. Similarly, the District of Columbia had the second-lowest median age but saw the largest increase of 0.5 years from 34.4 to 34.9,” said Kristie Wilder, a demographer in the Census Bureau’s Population Division.

“With birth rates trending downwards and the aging of the Baby Boom and Generation X cohorts, the median age will likely continue to rise in the coming years.”

Only one state’s population – Maine – became slightly younger, as its median age decreased from 44.8 in 2020 to 44.7 in 2021. Although its median age decreased, Maine remained the state with the oldest median age in the nation, after more than two decades of getting older each year.

Read the full release.