The Oldest and Youngest County in Each State

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As baby boomers continue to age, the nation’s median age also continues to rise. The median age rose from 35.3 years in 2000 to 37.9 years in 2016, according to the U.S. Census Bureau. In two-thirds of U.S. counties, the median age increased in 2016 from 2015.

The number of senior citizens across the United States continues to increase, but the increase is not evenly distributed across the country. Some counties tend to be much older or much younger than others. 24/7 Wall St. reviewed Census Bureau data to find the oldest and youngest county in each state.

Florida has a reputation as a top retirement destination, so it might not be surprising that the oldest U.S. county is in the Sunshine State. More than half of Florida’s oldest county’s residents are over the age of 65.

The youngest state is Utah, with a median age of 30.3 years, but it does not have the youngest county, which can be found in Georgia. Maine is the oldest state, with a median age of 44 years.

In order to determine the oldest and youngest county in each state, 24/7 Wall St. reviewed age data from the census bureau’s 2016 American Community Survey for each U.S. county.

Click here to see the oldest and youngest county in each state.
Click here to see our detailed findings and methodology.