Special Report

This is the Oldest County in North Dakota

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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.

McIntosh County ranks as the oldest county in North Dakota. The typical county resident is 53.5 years old, well above the median age across the state of 35.1.

Of the 2,597 people living in McIntosh County, 31.2% are 65 or older and 17.4% are under age 18. Meanwhile, 14.9% of all North Dakota residents are at least 65 years old and 23.2% are under 18.

All data for this story are five-year estimates from the U.S. Census Bureau’s 2019 American Community Survey. Counties were ranked based on the median age of all residents. In the case of a tie, the county with the largest share of the population 65 and older ranked as the oldest. This is the oldest county in every state.

Place Median age (years) State median age (years) County population
Alabama: Coosa County 48.4 39.0 10,757
Alaska: Hoonah-Angoon Census Area 49.6 34.3 2,139
Arizona: La Paz County 56.5 37.7 20,793
Arkansas: Baxter County 52.2 38.1 41,427
California: Sierra County 54.8 36.5 3,040
Colorado: Custer County 59.7 36.7 4,776
Connecticut: Litchfield County 47.3 41.0 182,002
Delaware: Sussex County 49.6 40.6 224,384
Florida: Sumter County 67.4 42.0 125,044
Georgia: Union County 54.3 36.7 23,288
Hawaii: Kalawao County 57.4 39.1 66
Idaho: Adams County 55.2 36.4 4,097
Illinois: Pope County 52.5 38.1 4,203
Indiana: Brown County 50.0 37.7 15,064
Iowa: Dickinson County 48.4 38.2 17,127
Kansas: Jewell County 52.8 36.7 2,885
Kentucky: Lyon County 50.6 38.9 8,271
Louisiana: Cameron Parish 44.1 36.9 6,930
Maine: Piscataquis County 51.5 44.7 16,836
Maryland: Talbot County 50.5 38.7 37,167
Massachusetts: Barnstable County 53.3 39.5 213,496
Michigan: Ontonagon County 58.6 39.7 5,877
Minnesota: Aitkin County 55.5 38.0 15,834
Mississippi: Carroll County 47.6 37.5 10,070
Missouri: Hickory County 55.0 38.6 9,404
Montana: Golden Valley County 56.9 39.9 728
Nebraska: McPherson County 54.8 36.5 395
Nevada: Esmeralda County 55.4 38.0 969
New Hampshire: Carroll County 52.3 42.9 48,138
New Jersey: Cape May County 49.6 39.9 93,086
New Mexico: Harding County 58.5 37.8 441
New York: Hamilton County 55.3 38.8 4,515
North Carolina: Brunswick County 53.8 38.7 131,815
North Dakota: McIntosh County 53.5 35.1 2,597
Ohio: Noble County 50.4 39.4 14,416
Oklahoma: McIntosh County 47.8 36.6 19,725
Oregon: Wheeler County 59.0 39.3 1,415
Pennsylvania: Sullivan County 53.7 40.8 6,135
Rhode Island: Newport County 45.2 39.9 82,801
South Carolina: McCormick County 55.2 39.4 9,531
South Dakota: Custer County 54.8 37.0 8,719
Tennessee: Cumberland County 51.0 38.7 59,216
Texas: Llano County 57.4 34.6 21,047
Utah: Piute County 44.5 30.8 1,866
Vermont: Essex County 50.9 42.9 6,200
Virginia: Highland County 60.9 38.2 2,204
Washington: Jefferson County 58.3 37.7 31,285
West Virginia: Pendleton County 50.8 42.5 7,001
Wisconsin: Iron County 54.9 39.5 5,687
Wyoming: Platte County 49.2 37.7 8,582

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