The Oldest County in Every State

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Alabama: Coosa County
> Median Age: 49.0 years (state: 39.2 years)
> Population 65 and over: 23.3% (state: 16.9%)
> Total population: 10,696
> Life expectancy: 74.9 years
> County seat: Rockford

Source: Public Domain / Wikimedia Commons

Alaska: Hoonah-Angoon Census Area
> Median Age: 52.1 years (state: 34.6 years)
> Population 65 and over: 22.6% (state: 11.9%)
> Total population: 2,135
> Life expectancy: 84.2 years
> County seat: None

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Arizona: La Paz County
> Median Age: 57.4 years (state: 37.9 years)
> Population 65 and over: 39.8% (state: 17.6%)
> Total population: 21,035
> Life expectancy: 77.2 years
> County seat: Parker

Source: Pcrh / Wikimedia Commons

Arkansas: Baxter County
> Median Age: 52.3 years (state: 38.3 years)
> Population 65 and over: 31.2% (state: 16.9%)
> Total population: 41,673
> Life expectancy: 77.0 years
> County seat: Mountain Home

Source: Public Domain / Wikimedia Commons

California: Sierra County
> Median Age: 54.0 years (state: 36.7 years)
> Population 65 and over: 28.2% (state: 14.3%)
> Total population: 2,898
> Life expectancy: 81.5 years
> County seat: Downieville

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