# Counties in Ohio by median age, 2024

All 88 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `median_age`
- Unit: years
- Definition: Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat)
- Retrieved: 2026-10-08
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.
- Web page: https://invokely.ai/rankings/median-age/ohio-counties
- CSV: https://invokely.ai/download/rankings/median-age/ohio-counties.csv

| Rank | Place | years |
|---:|---|---:|
| 1 | Noble County | 53.4 |
| 2 | Ottawa County | 50.6 |
| 3 | Monroe County | 46.3 |
| 4 | Carroll County | 45.6 |
| 5 | Harrison County | 45.5 |
| 6 | Erie County | 45.3 |
| 7 | Geauga County | 45 |
| 8 | Columbiana County | 44.6 |
| 8 | Morgan County | 44.6 |
| 10 | Jefferson County | 44.3 |
| 11 | Belmont County | 44.1 |
| 11 | Lake County | 44.1 |
| 11 | Meigs County | 44.1 |
| 14 | Vinton County | 44 |
| 14 | Washington County | 44 |
| 16 | Trumbull County | 43.7 |
| 17 | Crawford County | 43.4 |
| 17 | Hocking County | 43.4 |
| 19 | Medina County | 43.3 |
| 19 | Preble County | 43.3 |
| 21 | Mahoning County | 43.2 |
| 21 | Morrow County | 43.2 |
| 23 | Ashtabula County | 43 |
| 24 | Guernsey County | 42.9 |
| 25 | Brown County | 42.5 |
| 25 | Sandusky County | 42.5 |
| 27 | Adams County | 42.1 |
| 27 | Lorain County | 42.1 |
| 29 | Lawrence County | 41.9 |
| 29 | Logan County | 41.9 |
| 31 | Darke County | 41.8 |
| 31 | Stark County | 41.8 |
| 33 | Champaign County | 41.7 |
| 33 | Pike County | 41.7 |
| 33 | Wyandot County | 41.7 |
| 36 | Henry County | 41.6 |
| 36 | Van Wert County | 41.6 |
| 36 | Williams County | 41.6 |
| 39 | Fulton County | 41.5 |
| 39 | Madison County | 41.5 |
| 41 | Gallia County | 41.4 |
| 41 | Summit County | 41.4 |
| 43 | Coshocton County | 41.3 |
| 43 | Miami County | 41.3 |
| 43 | Perry County | 41.3 |
| 46 | Ashland County | 41.2 |
| 46 | Clark County | 41.2 |
| 48 | Defiance County | 41.1 |
| 48 | Ross County | 41.1 |
| 48 | Scioto County | 41.1 |
| 48 | Tuscarawas County | 41.1 |
| 52 | Auglaize County | 41 |
| 52 | Highland County | 41 |
| 52 | Paulding County | 41 |
| 55 | Richland County | 40.9 |
| 56 | Clermont County | 40.8 |
| 56 | Clinton County | 40.8 |
| 58 | Putnam County | 40.6 |
| 59 | Cuyahoga County | 40.4 |
| 60 | Licking County | 40.3 |
| 60 | Muskingum County | 40.3 |
| 60 | Shelby County | 40.3 |
| 63 | Seneca County | 40.2 |
| 64 | Delaware County | 40.1 |
| 64 | Huron County | 40.1 |
| 64 | Marion County | 40.1 |
| 64 | Warren County | 40.1 |
| 68 | Jackson County | 40 |
| 69 | Fayette County | 39.9 |
| 70 | Allen County | 39.7 |
| 71 | Pickaway County | 39.6 |
| 71 | Portage County | 39.6 |
| 73 | Fairfield County | 39.5 |
| 73 | Hancock County | 39.5 |
| 75 | Knox County | 39.4 |
| 75 | Mercer County | 39.4 |
| 77 | Wayne County | 38.9 |
| 78 | Montgomery County | 38.8 |
| 79 | Greene County | 38.7 |
| 80 | Lucas County | 38.5 |
| 80 | Union County | 38.5 |
| 82 | Butler County | 37.2 |
| 83 | Hamilton County | 36.9 |
| 84 | Wood County | 36.2 |
| 85 | Hardin County | 35.2 |
| 86 | Franklin County | 34.8 |
| 87 | Athens County | 33.2 |
| 88 | Holmes County | 32.7 |