Description

This 24×36 in map shows the distribution of median generations across the conterminous United States.

In 2023, the national median age was the highest in United States history at 38.7 years, which corresponds to a Millennial (b. 1981-97) born in 1984. This was over twice the median age of the earliest records in 1820 (16.7 yrs). The low median age in the early 19th century was likely due to the high fertility rates in 1820, just under 7 births per woman, and an average life expectancy of around 40 years. Today, the average lifespan is around 70 years, and fertility rates are just under two per woman.

More details are available in the blog post.

Median Generations in the United States