Youngest County in Every State

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Source: Jeffrey Beall / Wikimedia Commons

6. Colorado: Alamosa County
> Median age: 30.3 years (county), 36.5 years (state)
> Pop. under 18: 24.3% (county), 23% (state)
> Population: 16,345
> Life expectancy: 77.4 years
> County seat: Alamosa

Source: jjbers / Flickr

7. Connecticut: Tolland County
> Median age: 37.9 years (county), 40.8 years (state)
> Pop. under 18: 18.1% (county), 21.2% (state)
> Population: 151,596
> Life expectancy: 81.6 years
> Largest city: Vernon

Source: JERRYE & ROY KLOTZ MD / Wikimedia Commons

8. Delaware: Kent County
> Median age: 37.3 years (county), 39.8 years (state)
> Pop. under 18: 23.4% (county), 21.6% (state)
> Population: 173,145
> Life expectancy: 77.5 years
> County seat: Dover

Source: Michael Rivera / Wikimedia Commons

9. Florida: Leon County
> Median age: 30.5 years (county), 41.8 years (state)
> Pop. under 18: 18.8% (county), 20.3% (state)
> Population: 285,890
> Life expectancy: 79.4 years
> County seat: Tallahassee

Source: ganatlguard / Flickr

10. Georgia: Chattahoochee County
> Median age: 23.7 years (county), 36.4 years (state)
> Pop. under 18: 22.3% (county), 24.5% (state)
> Population: 11,096
> Life expectancy: 77.1 years
> County seat: Cusseta