Counties with the longest life expectancy in Ohio

Life expectancy rates have been on the rise in the United States, with an increase of nearly seven years over the past half-century. (The average lifespan was 70.8 in 1970 and was documented as 77.5 in 2022, according to the Centers for Disease Control and Prevention.) There are many factors that can contribute to how long you'll live—from genetics to how much you drink or smoke, your diet and weight, and how physically active you are. But then there's the matter of where you live.

In some areas of the globe, dubbed "blue zones," there is a disproportionately high number of residents who live to at least 100 years old. These five particular pockets of the world—Ikaria, Greece; Loma Linda, California; Nicoya, Costa Rica, Okinawa, Japan; and Sardinia, Italy—are heavily researched, as scientists try to determine what it is about these residents' diets, lifestyles, and environments that can promote such longevity. While it may not be as obvious of a contributing factor, where you live can play a significant role in your overall lifespan, which is why some states and even counties in the U.S. tend to see longer life expectancy rates compared to others.

By delving into 2024 County Health Rankings & Roadmaps from the University of Wisconsin Population Health Institute, Stacker identified the counties with the longest life expectancy in Ohio. Life expectancy measures the average number of years from birth a person can expect to live and is calculated based on the number of deaths in a given time period and the average number of people at risk of dying during that period. Counties with unreliable or insufficient data were excluded from the analysis. Mortality data came from the National Vital Statistics System.

Read on to see if your county made the list.

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#41. Summit County (tie)

- Life expectancy: 75.7 years
--- 0.1 years higher than the state average

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#41. Seneca County (tie)

- Life expectancy: 75.7 years
--- 0.1 years higher than the state average

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#41. Cuyahoga County (tie)

- Life expectancy: 75.7 years
--- 0.1 years higher than the state average

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#41. Logan County (tie)

- Life expectancy: 75.7 years
--- 0.1 years higher than the state average

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#38. Athens County (tie)

- Life expectancy: 75.8 years
--- 0.2 years higher than the state average

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#38. Darke County (tie)

- Life expectancy: 75.8 years
--- 0.2 years higher than the state average

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#38. Hamilton County (tie)

- Life expectancy: 75.8 years
--- 0.2 years higher than the state average

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#36. Monroe County (tie)

- Life expectancy: 75.9 years
--- 0.3 years higher than the state average

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#36. Franklin County (tie)

- Life expectancy: 75.9 years
--- 0.3 years higher than the state average

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#33. Ashland County (tie)

- Life expectancy: 76.0 years
--- 0.4 years higher than the state average

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#33. Washington County (tie)

- Life expectancy: 76.0 years
--- 0.4 years higher than the state average

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#33. Champaign County (tie)

- Life expectancy: 76.0 years
--- 0.4 years higher than the state average

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#30. Licking County (tie)

- Life expectancy: 76.1 years
--- 0.5 years higher than the state average

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#30. Wyandot County (tie)

- Life expectancy: 76.1 years
--- 0.5 years higher than the state average

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#30. Madison County (tie)

- Life expectancy: 76.1 years
--- 0.5 years higher than the state average

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#26. Wayne County (tie)

- Life expectancy: 76.4 years
--- 0.8 years higher than the state average

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#26. Miami County (tie)

- Life expectancy: 76.4 years
--- 0.8 years higher than the state average

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#26. Van Wert County (tie)

- Life expectancy: 76.4 years
--- 0.8 years higher than the state average

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#26. Defiance County (tie)

- Life expectancy: 76.4 years
--- 0.8 years higher than the state average

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#25. Williams County

- Life expectancy: 76.5 years
--- 0.9 years higher than the state average

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#23. Henry County (tie)

- Life expectancy: 76.6 years
--- 1.0 years higher than the state average

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#23. Lorain County (tie)

- Life expectancy: 76.6 years
--- 1.0 years higher than the state average

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#21. Clermont County (tie)

- Life expectancy: 76.7 years
--- 1.1 years higher than the state average

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#21. Fairfield County (tie)

- Life expectancy: 76.7 years
--- 1.1 years higher than the state average

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#20. Morrow County

- Life expectancy: 76.8 years
--- 1.2 years higher than the state average

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#18. Fulton County (tie)

- Life expectancy: 76.9 years
--- 1.3 years higher than the state average

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#18. Hancock County (tie)

- Life expectancy: 76.9 years
--- 1.3 years higher than the state average

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#15. Portage County (tie)

- Life expectancy: 77.0 years
--- 1.4 years higher than the state average

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#15. Paulding County (tie)

- Life expectancy: 77.0 years
--- 1.4 years higher than the state average

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#15. Knox County (tie)

- Life expectancy: 77.0 years
--- 1.4 years higher than the state average

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#14. Auglaize County

- Life expectancy: 77.2 years
--- 1.6 years higher than the state average

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#13. Ottawa County

- Life expectancy: 77.3 years
--- 1.7 years higher than the state average

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#11. Lake County (tie)

- Life expectancy: 77.5 years
--- 1.9 years higher than the state average

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#11. Greene County (tie)

- Life expectancy: 77.5 years
--- 1.9 years higher than the state average

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#10. Wood County

- Life expectancy: 77.7 years
--- 2.1 years higher than the state average

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#9. Mercer County

- Life expectancy: 78.0 years
--- 2.4 years higher than the state average

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#8. Holmes County

- Life expectancy: 78.2 years
--- 2.6 years higher than the state average

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#7. Warren County

- Life expectancy: 78.4 years
--- 2.8 years higher than the state average

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#6. Union County

- Life expectancy: 78.9 years
--- 3.3 years higher than the state average

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#5. Medina County

- Life expectancy: 79.3 years
--- 3.7 years higher than the state average

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#4. Putnam County

- Life expectancy: 79.5 years
--- 3.9 years higher than the state average

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#3. Geauga County

- Life expectancy: 80.0 years
--- 4.4 years higher than the state average

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#2. Noble County

- Life expectancy: 81.1 years
--- 5.5 years higher than the state average

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#1. Delaware County

- Life expectancy: 81.2 years
--- 5.6 years higher than the state average

This story features data reporting by Karim Noorani, writing by Kiersten Hickman, and is part of a series utilizing data automation across 50 states.