Special Report

The Oldest County In Every State

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As the baby boomer generation continues to age, and as birth rates slow nationwide, the U.S. population is rapidly growing older. The number of Americans older than 55 grew by 27% in the last decade, 20 times faster than the growth rate of the under 55 population, according to census data analysis. Currently, the median age in the United States is about 38. By 2060, the median age is projected to be 43.

While there are still decades to go before the median age in the U.S. exceeds 40, there are already counties that are ahead of this trend. Every state has at least one county or county equivalent where the median age is over half a decade above the national median. 

Using data from the U.S. Census Bureau, 24/7 Wall St. identified the youngest county or county equivalent in each state. Depending on the state, the median age in the oldest county ranges from about 44 to 67. 

An aging population can carry significant economic implications. In places with large retirement-age populations, working-age residents often shoulder a greater burden in supporting non-working older residents who tend to rely more on social and health services. In nearly every county on this list, the ratio of residents 65 and older to working-age residents is far higher than it is across the state as a whole. Here is a look at the best (and worst) states for a healthy retirement

A given area can have a higher than average median age for any number of reasons. It can be a retirement destination or simply lack institutions that tend to host large numbers of young people, like a college or university or a military base. Often, however, areas where the median age is higher than average are not drawing in new residents and young families, which is also often evidenced by net population decline. Most of the counties on this list are home to fewer people now than they were half a decade ago. Here is a look at the fastest shrinking place in every state

Click here to see the oldest county in every state.
Click here to see our detailed methodology.

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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

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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

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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

Archedamian / Wikimedia Commons

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

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Famartin / Wikimedia Commons

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

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Colorado: Custer County
> Median age: 59.7 years (state: 36.7 years)
> Population under 18: 15.0% (state: 22.5%)
> Population 65 and over: 36.0% (state: 13.8%)
> Total population: 4,776
> Largest place in county: Silver Cliff

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Connecticut: Litchfield County
> Median age: 47.3 years (state: 41.0 years)
> Population under 18: 18.5% (state: 20.8%)
> Population 65 and over: 20.6% (state: 16.8%)
> Total population: 182,002
> Largest place in county: Torrington

aimintang / Getty Images

Delaware: Sussex County
> Median age: 49.6 years (state: 40.6 years)
> Population under 18: 18.8% (state: 21.3%)
> Population 65 and over: 27.0% (state: 18.2%)
> Total population: 224,384
> Largest place in county: Milford

Ken Badgley / Getty Images

Florida: Sumter County
> Median age: 67.4 years (state: 42.0 years)
> Population under 18: 7.3% (state: 20.0%)
> Population 65 and over: 56.7% (state: 20.1%)
> Total population: 125,044
> Largest place in county: The Villages

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Wilsilver77 / Getty Images

Georgia: Union County
> Median age: 54.3 years (state: 36.7 years)
> Population under 18: 16.3% (state: 24.1%)
> Population 65 and over: 32.5% (state: 13.5%)
> Total population: 23,288
> Largest place in county: Blairsville

quid-tum / Flickr

Hawaii: Kalawao County
> Median age: 57.4 years (state: 39.1 years)
> Population under 18: 1.5% (state: 21.4%)
> Population 65 and over: 16.7% (state: 17.8%)
> Total population: 66
> Largest place in county: N/A

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Idaho: Adams County
> Median age: 55.2 years (state: 36.4 years)
> Population under 18: 17.1% (state: 25.7%)
> Population 65 and over: 29.5% (state: 15.4%)
> Total population: 4,097
> Largest place in county: Council

Nyttend / Wikimedia Commons

Illinois: Pope County
> Median age: 52.5 years (state: 38.1 years)
> Population under 18: 14.9% (state: 22.6%)
> Population 65 and over: 27.4% (state: 15.2%)
> Total population: 4,203
> Largest place in county: Golconda

Kenneth_Keifer / Getty Images

Indiana: Brown County
> Median age: 50.0 years (state: 37.7 years)
> Population under 18: 17.8% (state: 23.6%)
> Population 65 and over: 24.3% (state: 15.4%)
> Total population: 15,064
> Largest place in county: Nashville

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Public Domain / Wikimedia Commons

Iowa: Dickinson County
> Median age: 48.4 years (state: 38.2 years)
> Population under 18: 18.9% (state: 23.2%)
> Population 65 and over: 25.5% (state: 16.7%)
> Total population: 17,127
> Largest place in county: Spirit Lake

iip-photo-archive / Flickr

Kansas: Jewell County
> Median age: 52.8 years (state: 36.7 years)
> Population under 18: 19.2% (state: 24.4%)
> Population 65 and over: 29.6% (state: 15.4%)
> Total population: 2,885
> Largest place in county: Mankato

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Kentucky: Lyon County
> Median age: 50.6 years (state: 38.9 years)
> Population under 18: 13.9% (state: 22.7%)
> Population 65 and over: 26.7% (state: 16.0%)
> Total population: 8,271
> Largest place in county: Eddyville

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Louisiana: Cameron Parish
> Median age: 44.1 years (state: 36.9 years)
> Population under 18: 22.6% (state: 23.7%)
> Population 65 and over: 16.0% (state: 15.0%)
> Total population: 6,930
> Largest place in parish: Hackberry

EJJohnsonPhotography / Getty Images

Maine: Piscataquis County
> Median age: 51.5 years (state: 44.7 years)
> Population under 18: 17.3% (state: 18.9%)
> Population 65 and over: 25.9% (state: 20.0%)
> Total population: 16,836
> Largest place in county: Dover-Foxcroft

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Joesboy / Getty Images

Maryland: Talbot County
> Median age: 50.5 years (state: 38.7 years)
> Population under 18: 18.4% (state: 22.3%)
> Population 65 and over: 28.5% (state: 15.0%)
> Total population: 37,167
> Largest place in county: Easton

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Massachusetts: Barnstable County
> Median age: 53.3 years (state: 39.5 years)
> Population under 18: 15.3% (state: 20.0%)
> Population 65 and over: 29.8% (state: 16.2%)
> Total population: 213,496
> Largest place in county: Barnstable Town

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Michigan: Ontonagon County
> Median age: 58.6 years (state: 39.7 years)
> Population under 18: 12.4% (state: 21.9%)
> Population 65 and over: 35.4% (state: 16.7%)
> Total population: 5,877
> Largest place in county: Ontonagon

Elkman / Wikimedia Commons

Minnesota: Aitkin County
> Median age: 55.5 years (state: 38.0 years)
> Population under 18: 16.7% (state: 23.3%)
> Population 65 and over: 32.5% (state: 15.4%)
> Total population: 15,834
> Largest place in county: Aitkin

Mississippi: Carroll County
> Median age: 47.6 years (state: 37.5 years)
> Population under 18: 19.2% (state: 23.9%)
> Population 65 and over: 22.9% (state: 15.4%)
> Total population: 10,070
> Largest place in county: Vaiden

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Missouri: Hickory County
> Median age: 55.0 years (state: 38.6 years)
> Population under 18: 17.0% (state: 22.6%)
> Population 65 and over: 33.5% (state: 16.5%)
> Total population: 9,404
> Largest place in county: Hermitage

JERRYE AND ROY KLOTZ MD / Wikimedia Commons

Montana: Golden Valley County
> Median age: 56.9 years (state: 39.9 years)
> Population under 18: 14.4% (state: 21.7%)
> Population 65 and over: 25.4% (state: 18.2%)
> Total population: 728
> Largest place in county: Ryegate

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Public Domain / Wikimedia Commons

Nebraska: McPherson County
> Median age: 54.8 years (state: 36.5 years)
> Population under 18: 15.4% (state: 24.8%)
> Population 65 and over: 29.9% (state: 15.4%)
> Total population: 395
> Largest place in county: Tryon

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Nevada: Esmeralda County
> Median age: 55.4 years (state: 38.0 years)
> Population under 18: 16.6% (state: 22.9%)
> Population 65 and over: 28.5% (state: 15.4%)
> Total population: 969
> Largest place in county: Dyer

Magicpiano / Wikimedia Commons

New Hampshire: Carroll County
> Median age: 52.3 years (state: 42.9 years)
> Population under 18: 16.1% (state: 19.3%)
> Population 65 and over: 27.0% (state: 17.5%)
> Total population: 48,138
> Largest place in county: Conway

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New Jersey: Cape May County
> Median age: 49.6 years (state: 39.9 years)
> Population under 18: 17.6% (state: 22.1%)
> Population 65 and over: 25.8% (state: 15.9%)
> Total population: 93,086
> Largest place in county: Ocean City

Vacaypicts / Wikimedia Commons

New Mexico: Harding County
> Median age: 58.5 years (state: 37.8 years)
> Population under 18: 13.8% (state: 23.3%)
> Population 65 and over: 39.0% (state: 16.9%)
> Total population: 441
> Largest place in county: Roy

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New York: Hamilton County
> Median age: 55.3 years (state: 38.8 years)
> Population under 18: 13.8% (state: 21.0%)
> Population 65 and over: 30.3% (state: 16.1%)
> Total population: 4,515
> Largest place in county: Wells

Gerry Dincher / Flickr

North Carolina: Brunswick County
> Median age: 53.8 years (state: 38.7 years)
> Population under 18: 15.6% (state: 22.4%)
> Population 65 and over: 30.5% (state: 15.9%)
> Total population: 131,815
> Largest place in county: Leland

North Dakota: McIntosh County
> Median age: 53.5 years (state: 35.1 years)
> Population under 18: 17.4% (state: 23.2%)
> Population 65 and over: 31.2% (state: 14.9%)
> Total population: 2,597
> Largest place in county: Wishek

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Wikimedia Commons

Ohio: Noble County
> Median age: 50.4 years (state: 39.4 years)
> Population under 18: 18.5% (state: 22.4%)
> Population 65 and over: 26.7% (state: 16.7%)
> Total population: 14,416
> Largest place in county: Caldwell

Larry D. Moore / Wikimedia Commons

Oklahoma: McIntosh County
> Median age: 47.8 years (state: 36.6 years)
> Population under 18: 20.1% (state: 24.3%)
> Population 65 and over: 25.2% (state: 15.3%)
> Total population: 19,725
> Largest place in county: Central

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Esteban Martinena Guerrero / iStock via Getty Images

Oregon: Wheeler County
> Median age: 59.0 years (state: 39.3 years)
> Population under 18: 17.0% (state: 21.0%)
> Population 65 and over: 35.8% (state: 17.2%)
> Total population: 1,415
> Largest place in county: Fossil

Pennsylvania: Sullivan County
> Median age: 53.7 years (state: 40.8 years)
> Population under 18: 11.7% (state: 20.8%)
> Population 65 and over: 27.6% (state: 17.8%)
> Total population: 6,135
> Largest place in county: Dushore

Image Source / Getty Images

Rhode Island: Newport County
> Median age: 45.2 years (state: 39.9 years)
> Population under 18: 17.1% (state: 19.6%)
> Population 65 and over: 21.7% (state: 16.8%)
> Total population: 82,801
> Largest place in county: Newport

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South Carolina: McCormick County
> Median age: 55.2 years (state: 39.4 years)
> Population under 18: 12.2% (state: 22.0%)
> Population 65 and over: 33.4% (state: 17.2%)
> Total population: 9,531
> Largest place in county: McCormick

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South Dakota: Custer County
> Median age: 54.8 years (state: 37.0 years)
> Population under 18: 15.9% (state: 24.6%)
> Population 65 and over: 29.0% (state: 16.3%)
> Total population: 8,719
> Largest place in county: Custer

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Tennessee: Cumberland County
> Median age: 51.0 years (state: 38.7 years)
> Population under 18: 17.8% (state: 22.4%)
> Population 65 and over: 30.2% (state: 16.0%)
> Total population: 59,216
> Largest place in county: Crossville

https://www.flickr.com/photos/0ccam/

Texas: Llano County
> Median age: 57.4 years (state: 34.6 years)
> Population under 18: 15.0% (state: 26.0%)
> Population 65 and over: 36.4% (state: 12.3%)
> Total population: 21,047
> Largest place in county: Kingsland

kenlund / Wikimedia Commons

Utah: Piute County
> Median age: 44.5 years (state: 30.8 years)
> Population under 18: 24.3% (state: 29.8%)
> Population 65 and over: 24.6% (state: 10.8%)
> Total population: 1,866
> Largest place in county: Marysvale

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usfwsnortheast / Flickr

Vermont: Essex County
> Median age: 50.9 years (state: 42.9 years)
> Population under 18: 17.6% (state: 18.7%)
> Population 65 and over: 25.3% (state: 18.8%)
> Total population: 6,200
> Largest place in county: Island Pond

Joe_Potato / Getty Images

Virginia: Highland County
> Median age: 60.9 years (state: 38.2 years)
> Population under 18: 11.7% (state: 22.1%)
> Population 65 and over: 38.9% (state: 15.0%)
> Total population: 2,204
> Largest place in county: Monterey

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Steven Pavlov / Wikimedia Commons

Washington: Jefferson County
> Median age: 58.3 years (state: 37.7 years)
> Population under 18: 12.5% (state: 22.2%)
> Population 65 and over: 35.3% (state: 15.1%)
> Total population: 31,285
> Largest place in county: Port Townsend

Famartin / Wikimedia Commons

West Virginia: Pendleton County
> Median age: 50.8 years (state: 42.5 years)
> Population under 18: 18.3% (state: 20.3%)
> Population 65 and over: 26.5% (state: 19.4%)
> Total population: 7,001
> Largest place in county: Franklin

Royalbroil / Wikimedia Commons

Wisconsin: Iron County
> Median age: 54.9 years (state: 39.5 years)
> Population under 18: 14.0% (state: 22.1%)
> Population 65 and over: 30.1% (state: 16.5%)
> Total population: 5,687
> Largest place in county: Hurley

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library_of_congress / Flickr

Wyoming: Platte County
> Median age: 49.2 years (state: 37.7 years)
> Population under 18: 18.1% (state: 23.5%)
> Population 65 and over: 23.9% (state: 15.7%)
> Total population: 8,582
> Largest place in county: Wheatland

Methodology

To determine the oldest county in each state, 24/7 Wall St. reviewed five-year data on median age from the U.S. Census Bureau’s 2019 American Community Survey. Counties were ranked based on the median age for all residents. In the case of a tie, the county where the largest share of the population are 65 or older ranked as the oldest.

Supplemental data on the share of the population under 18 years old and total population also came from the 2019 ACS and are five-year estimates. Data on life expectancy by county came from the 2020 County Health Rankings & Roadmaps, a joint program of the Robert Wood Johnson Foundation and University of Wisconsin Population Health Institute. Data on population and place boundaries used to determine the largest city in every county came from the Census Bureau.

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