Seniors will comprise more than 20% of U.S. residents in 2030, up from 15% in 2020. By 2034, older adults will outnumber children, according to Census Bureau projections.

Across the U.S., 52 million Americans are 65 years or older, according to the U.S. Census Bureau, and a quarter of them live in just three states: California, Florida, and Texas. By comparison, North Dakota, South Dakota, Vermont, Wyoming, and Alaska each have fewer than 150,000 senior residents. The size of a state’s senior population means a lot in terms of demand for resources like health care, affordable housing, assisted living, in-home and nursing care, and support services, and the quality and availability of those resources help determine where seniors migrate.

With baby boomers moving into old age, fewer babies being born, and longer life expectancies, the senior population of America is on a spectacular rise. The lengthening of the U.S. life expectancy has been particularly dramatic, rising to nearly 79 years from 68 years in 1950.

Stacker compiled a list of counties with the most seniors in Ohio using data from the U.S. Census Bureau. Counties are ranked by the highest percentage of residents 65 years or older according to 2020 5-year estimates.

Keep reading to find out which counties have the most seniors in Ohio.

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1 / 50Aesopposea // Wikimedia Commons

#50. Adams County

– Population aged 65 or older: 17.9%
– Population aged 18 and younger: 23.9%
– Median age: 42.3 years old
— Median age of males: 42.3 years old
— Median age of females: 42.4 years old
– Total population: 27,685 people

2 / 50Brenda // Wikimedia Commons

#49. Medina County

– Population aged 65 or older: 17.9%
– Population aged 18 and younger: 22.3%
– Median age: 42.5 years old
— Median age of males: 41.2 years old
— Median age of females: 43.8 years old
– Total population: 179,116 people

3 / 50Mark Spearman from Newark, Ohio, USA // Wikimedia Commons

#48. Knox County

– Population aged 65 or older: 18%
– Population aged 18 and younger: 22.8%
– Median age: 39.4 years old
— Median age of males: 38.7 years old
— Median age of females: 39.9 years old
– Total population: 61,776 people

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#47. Fulton County

– Population aged 65 or older: 18%
– Population aged 18 and younger: 23.6%
– Median age: 41.3 years old
— Median age of males: 39.8 years old
— Median age of females: 42.8 years old
– Total population: 42,186 people

5 / 50Photo shot by Derek Jensen (Tysto) // Wikimedia Commons

#46. Logan County

– Population aged 65 or older: 18.1%
– Population aged 18 and younger: 23.1%
– Median age: 41.2 years old
— Median age of males: 40.5 years old
— Median age of females: 43 years old
– Total population: 45,315 people

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#45. Scioto County

– Population aged 65 or older: 18.2%
– Population aged 18 and younger: 21.7%
– Median age: 40.1 years old
— Median age of males: 38.4 years old
— Median age of females: 42.1 years old
– Total population: 75,441 people

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#44. Cuyahoga County

– Population aged 65 or older: 18.2%
– Population aged 18 and younger: 20.8%
– Median age: 40.4 years old
— Median age of males: 38.4 years old
— Median age of females: 42.3 years old
– Total population: 1,241,475 people

8 / 50Derek Jensen // Wikimedia Commons

#43. Auglaize County

– Population aged 65 or older: 18.3%
– Population aged 18 and younger: 24.1%
– Median age: 40.4 years old
— Median age of males: 39.6 years old
— Median age of females: 41.1 years old
– Total population: 45,709 people

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#42. Highland County

– Population aged 65 or older: 18.3%
– Population aged 18 and younger: 23.9%
– Median age: 40.9 years old
— Median age of males: 39.7 years old
— Median age of females: 42.3 years old
– Total population: 43,080 people

10 / 50Jim Roberts // Wikimedia Commons

#41. Champaign County

– Population aged 65 or older: 18.4%
– Population aged 18 and younger: 22.3%
– Median age: 41.6 years old
— Median age of males: 40 years old
— Median age of females: 43.3 years old
– Total population: 38,861 people

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11 / 50Derek Jensen (Tysto) // Wikimedia Commons

#40. Lorain County

– Population aged 65 or older: 18.4%
– Population aged 18 and younger: 22.0%
– Median age: 41.9 years old
— Median age of males: 40.5 years old
— Median age of females: 43.5 years old
– Total population: 309,134 people

12 / 50Art Anderson // Wikimedia Commons

#39. Henry County

– Population aged 65 or older: 18.5%
– Population aged 18 and younger: 23.3%
– Median age: 41.6 years old
— Median age of males: 39.9 years old
— Median age of females: 43.1 years old
– Total population: 27,068 people

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#38. Brown County

– Population aged 65 or older: 18.5%
– Population aged 18 and younger: 22.8%
– Median age: 42.3 years old
— Median age of males: 41.5 years old
— Median age of females: 43.5 years old
– Total population: 43,508 people

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#37. Ashland County

– Population aged 65 or older: 18.6%
– Population aged 18 and younger: 22.4%
– Median age: 40.7 years old
— Median age of males: 39 years old
— Median age of females: 41.8 years old
– Total population: 53,533 people

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#36. Defiance County

– Population aged 65 or older: 18.6%
– Population aged 18 and younger: 22.9%
– Median age: 40.7 years old
— Median age of males: 39.3 years old
— Median age of females: 42 years old
– Total population: 38,024 people

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#35. Lawrence County

– Population aged 65 or older: 18.6%
– Population aged 18 and younger: 22.0%
– Median age: 41.6 years old
— Median age of males: 39.9 years old
— Median age of females: 43.3 years old
– Total population: 59,901 people

17 / 50Kurt Tarvis // Wikimedia Commons

#34. Gallia County

– Population aged 65 or older: 18.7%
– Population aged 18 and younger: 23.0%
– Median age: 40.7 years old
— Median age of males: 39.3 years old
— Median age of females: 42.5 years old
– Total population: 29,995 people

18 / 50Derek Jensen // Wikimedia Commons

#33. Miami County

– Population aged 65 or older: 18.7%
– Population aged 18 and younger: 23.1%
– Median age: 41.2 years old
— Median age of males: 40.1 years old
— Median age of females: 42.6 years old
– Total population: 106,074 people

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#32. Paulding County

– Population aged 65 or older: 18.7%
– Population aged 18 and younger: 23.5%
– Median age: 42.2 years old
— Median age of males: 41.3 years old
— Median age of females: 43 years old
– Total population: 18,742 people

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#31. Sandusky County

– Population aged 65 or older: 18.7%
– Population aged 18 and younger: 22.6%
– Median age: 42.4 years old
— Median age of males: 40.9 years old
— Median age of females: 43.7 years old
– Total population: 58,801 people

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21 / 50Derek Jensen (Tysto) // Wikimedia Commons

#30. Van Wert County

– Population aged 65 or older: 18.8%
– Population aged 18 and younger: 23.4%
– Median age: 41.2 years old
— Median age of males: 40.2 years old
— Median age of females: 42.7 years old
– Total population: 28,213 people

22 / 50Christopher L. Riley // Wikimedia Commons

#29. Williams County

– Population aged 65 or older: 18.8%
– Population aged 18 and younger: 22.8%
– Median age: 41.4 years old
— Median age of males: 39.5 years old
— Median age of females: 43.2 years old
– Total population: 36,760 people

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#28. Hocking County

– Population aged 65 or older: 18.9%
– Population aged 18 and younger: 21.8%
– Median age: 42.9 years old
— Median age of males: 42.3 years old
— Median age of females: 44 years old
– Total population: 28,306 people

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#27. Preble County

– Population aged 65 or older: 19.1%
– Population aged 18 and younger: 22.4%
– Median age: 43.1 years old
— Median age of males: 42.3 years old
— Median age of females: 43.7 years old
– Total population: 40,995 people

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#26. Ashtabula County

– Population aged 65 or older: 19.2%
– Population aged 18 and younger: 22.1%
– Median age: 42.7 years old
— Median age of males: 41.4 years old
— Median age of females: 44.2 years old
– Total population: 97,416 people

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#25. Coshocton County

– Population aged 65 or older: 19.3%
– Population aged 18 and younger: 23.4%
– Median age: 41.1 years old
— Median age of males: 39.9 years old
— Median age of females: 42.8 years old
– Total population: 36,558 people

27 / 50User:OHWiki // Wikimedia Commons

#24. Wyandot County

– Population aged 65 or older: 19.3%
– Population aged 18 and younger: 22.1%
– Median age: 43 years old
— Median age of males: 40.8 years old
— Median age of females: 44 years old
– Total population: 21,907 people

28 / 50Cindy Funk // Wikicommons

#23. Clark County

– Population aged 65 or older: 19.4%
– Population aged 18 and younger: 22.5%
– Median age: 41.5 years old
— Median age of males: 40.2 years old
— Median age of females: 42.8 years old
– Total population: 134,409 people

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#22. Stark County

– Population aged 65 or older: 19.4%
– Population aged 18 and younger: 21.5%
– Median age: 42.1 years old
— Median age of males: 40.4 years old
— Median age of females: 43.8 years old
– Total population: 371,516 people

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#21. Guernsey County

– Population aged 65 or older: 19.4%
– Population aged 18 and younger: 22.0%
– Median age: 42.6 years old
— Median age of males: 40.5 years old
— Median age of females: 44.5 years old
– Total population: 38,996 people

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#20. Tuscarawas County

– Population aged 65 or older: 19.5%
– Population aged 18 and younger: 23.0%
– Median age: 41 years old
— Median age of males: 39.5 years old
— Median age of females: 43.1 years old
– Total population: 92,165 people

32 / 50John Siegenthaler // Wikimedia Commons

#19. Richland County

– Population aged 65 or older: 19.5%
– Population aged 18 and younger: 21.7%
– Median age: 41.5 years old
— Median age of males: 39.3 years old
— Median age of females: 43.9 years old
– Total population: 121,043 people

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#18. Darke County

– Population aged 65 or older: 19.5%
– Population aged 18 and younger: 23.7%
– Median age: 41.8 years old
— Median age of males: 40.2 years old
— Median age of females: 43.9 years old
– Total population: 51,387 people

34 / 50Jimmy Emerson // Wikimedia Commons

#17. Meigs County

– Population aged 65 or older: 19.7%
– Population aged 18 and younger: 22.3%
– Median age: 43.3 years old
— Median age of males: 41.7 years old
— Median age of females: 44.7 years old
– Total population: 22,974 people

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#16. Lake County

– Population aged 65 or older: 20%
– Population aged 18 and younger: 20.0%
– Median age: 43.9 years old
— Median age of males: 42.3 years old
— Median age of females: 45.6 years old
– Total population: 229,755 people

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#15. Columbiana County

– Population aged 65 or older: 20.3%
– Population aged 18 and younger: 20.3%
– Median age: 44.3 years old
— Median age of males: 42.8 years old
— Median age of females: 46.1 years old
– Total population: 102,514 people

37 / 50Andre Carrotflower // Wikimedia Commons

#14. Geauga County

– Population aged 65 or older: 20.3%
– Population aged 18 and younger: 22.9%
– Median age: 44.8 years old
— Median age of males: 43.2 years old
— Median age of females: 45.8 years old
– Total population: 93,657 people

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#13. Crawford County

– Population aged 65 or older: 20.7%
– Population aged 18 and younger: 21.8%
– Median age: 43.1 years old
— Median age of males: 42.1 years old
— Median age of females: 44.6 years old
– Total population: 41,603 people

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#12. Belmont County

– Population aged 65 or older: 20.8%
– Population aged 18 and younger: 18.8%
– Median age: 44.5 years old
— Median age of males: 41.7 years old
— Median age of females: 47.7 years old
– Total population: 67,424 people

40 / 50Jack Pearce // Wikimedia Commons

#11. Mahoning County

– Population aged 65 or older: 20.9%
– Population aged 18 and younger: 20.1%
– Median age: 43.5 years old
— Median age of males: 41.5 years old
— Median age of females: 46 years old
– Total population: 228,452 people

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41 / 50Roger O. Young // Wikimedia Commons

#10. Washington County

– Population aged 65 or older: 20.9%
– Population aged 18 and younger: 19.7%
– Median age: 44.4 years old
— Median age of males: 42.1 years old
— Median age of females: 45.7 years old
– Total population: 60,217 people

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#9. Carroll County

– Population aged 65 or older: 21.3%
– Population aged 18 and younger: 20.6%
– Median age: 46.1 years old
— Median age of males: 45.2 years old
— Median age of females: 47.2 years old
– Total population: 27,195 people

43 / 50Jack W. Pearce // Wikimedia Commons

#8. Trumbull County

– Population aged 65 or older: 21.5%
– Population aged 18 and younger: 20.5%
– Median age: 44.4 years old
— Median age of males: 42.7 years old
— Median age of females: 46.3 years old
– Total population: 199,144 people

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#7. Jefferson County

– Population aged 65 or older: 21.5%
– Population aged 18 and younger: 19.2%
– Median age: 44.9 years old
— Median age of males: 42.7 years old
— Median age of females: 46.2 years old
– Total population: 65,943 people

45 / 50Bwsmith84 // Wikimedia Commons

#6. Harrison County

– Population aged 65 or older: 21.6%
– Population aged 18 and younger: 20.8%
– Median age: 46.1 years old
— Median age of males: 45.1 years old
— Median age of females: 47.6 years old
– Total population: 15,132 people

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46 / 50Tim Kiser // Wikimedia Commons

#5. Morgan County

– Population aged 65 or older: 21.7%
– Population aged 18 and younger: 20.9%
– Median age: 44.8 years old
— Median age of males: 43.4 years old
— Median age of females: 46.4 years old
– Total population: 14,557 people

47 / 50Rona Proudfoot // Wikimedia Commons

#4. Erie County

– Population aged 65 or older: 21.7%
– Population aged 18 and younger: 20.3%
– Median age: 44.9 years old
— Median age of males: 43.8 years old
— Median age of females: 46.2 years old
– Total population: 74,419 people

48 / 50Bwsmith84// Wikimedia Commons

#3. Monroe County

– Population aged 65 or older: 23.8%
– Population aged 18 and younger: 20.6%
– Median age: 47 years old
— Median age of males: 46.5 years old
— Median age of females: 47.7 years old
– Total population: 13,827 people

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#2. Ottawa County

– Population aged 65 or older: 25.3%
– Population aged 18 and younger: 18.5%
– Median age: 49.6 years old
— Median age of males: 48.1 years old
— Median age of females: 50.6 years old
– Total population: 40,557 people

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#1. Noble County

– Population aged 65 or older: 27.4%
– Population aged 18 and younger: 18.6%
– Median age: 51.2 years old
— Median age of males: 56.3 years old
— Median age of females: 45.9 years old
– Total population: 14,410 people