It reports the median age for each state and the District of Columbia. The Oldest States Are Concentrated in the NortheastThe national median age stands at 39.2 as of 2024. Maine leads the country with a median age of 45, followed by Vermont and New Hampshire at 44. Florida stands out with a median age of 43, driven by its large retiree population. In contrast, Texas has a median age of 36, reflecting faster population growth and a younger workforce.