Special Report

The Oldest County in Every State

Alabama: Coosa County
> Median age: 48.4 years (state: 39.0 years)
> Population under 18: 16.7% (state: 22.5%)
> Population 65 and over: 22.6% (state: 16.5%)
> Total population: 10,757
> Largest place in county: Stewartville

Alaska: Hoonah-Angoon Census Area
> Median age: 49.6 years (state: 34.3 years)
> Population under 18: 15.1% (state: 25.0%)
> Population 65 and over: 20.5% (state: 11.2%)
> Total population: 2,139
> Largest place in Census area: Hoonah

Source: MCCAIG / iStock via Getty Images

Arizona: La Paz County
> Median age: 56.5 years (state: 37.7 years)
> Population under 18: 16.3% (state: 23.2%)
> Population 65 and over: 38.6% (state: 17.1%)
> Total population: 20,793
> Largest place in county: Quartzsite

Arkansas: Baxter County
> Median age: 52.2 years (state: 38.1 years)
> Population under 18: 17.5% (state: 23.5%)
> Population 65 and over: 30.8% (state: 16.6%)
> Total population: 41,427
> Largest place in county: Mountain Home

California: Sierra County
> Median age: 54.8 years (state: 36.5 years)
> Population under 18: 15.9% (state: 23.0%)
> Population 65 and over: 29.3% (state: 14.0%)
> Total population: 3,040
> Largest place in county: Loyalton