# Counties in Michigan by median age, 2024

All 83 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/michigan-counties
- CSV: https://invokely.ai/download/rankings/median-age/michigan-counties.csv

| Rank | Place | years |
|---:|---|---:|
| 1 | Alcona County | 60 |
| 2 | Ontonagon County | 59.8 |
| 3 | Roscommon County | 57.7 |
| 4 | Keweenaw County | 57.1 |
| 5 | Montmorency County | 56.9 |
| 6 | Presque Isle County | 56.1 |
| 7 | Leelanau County | 55.9 |
| 8 | Iosco County | 53.5 |
| 9 | Iron County | 53.1 |
| 10 | Mackinac County | 53 |
| 11 | Schoolcraft County | 52.6 |
| 12 | Oscoda County | 52.5 |
| 13 | Cheboygan County | 52.2 |
| 14 | Antrim County | 51.8 |
| 15 | Crawford County | 51.6 |
| 16 | Gogebic County | 51.2 |
| 16 | Ogemaw County | 51.2 |
| 18 | Benzie County | 50.8 |
| 19 | Gladwin County | 50.7 |
| 20 | Lake County | 50.5 |
| 21 | Charlevoix County | 50.4 |
| 22 | Manistee County | 50.3 |
| 23 | Arenac County | 50.2 |
| 24 | Menominee County | 49.6 |
| 25 | Huron County | 49.5 |
| 26 | Alger County | 49.1 |
| 27 | Clare County | 49 |
| 28 | Delta County | 48 |
| 29 | Alpena County | 47.8 |
| 30 | Mason County | 47.3 |
| 31 | Emmet County | 47 |
| 32 | Dickinson County | 46.9 |
| 33 | Baraga County | 46 |
| 34 | Cass County | 45.5 |
| 34 | Sanilac County | 45.5 |
| 36 | Tuscola County | 44.8 |
| 37 | Lapeer County | 44.7 |
| 38 | Luce County | 44.6 |
| 39 | St. Clair County | 44.5 |
| 40 | Kalkaska County | 44.4 |
| 40 | Otsego County | 44.4 |
| 42 | Oceana County | 44.2 |
| 43 | Bay County | 43.9 |
| 43 | Livingston County | 43.9 |
| 43 | Osceola County | 43.9 |
| 46 | Grand Traverse County | 43.5 |
| 47 | Missaukee County | 43.3 |
| 48 | Shiawassee County | 43.2 |
| 49 | Hillsdale County | 43.1 |
| 50 | Monroe County | 42.8 |
| 51 | Berrien County | 42.7 |
| 51 | Newaygo County | 42.7 |
| 53 | Lenawee County | 42.4 |
| 54 | Barry County | 42.3 |
| 55 | Wexford County | 42.2 |
| 56 | Clinton County | 41.8 |
| 56 | Midland County | 41.8 |
| 58 | Chippewa County | 41.6 |
| 59 | Jackson County | 41.5 |
| 60 | Eaton County | 41.4 |
| 61 | Macomb County | 41.3 |
| 61 | Oakland County | 41.3 |
| 63 | Saginaw County | 41.2 |
| 63 | Van Buren County | 41.2 |
| 65 | Allegan County | 41 |
| 66 | Branch County | 40.6 |
| 66 | Genesee County | 40.6 |
| 68 | Montcalm County | 40.4 |
| 69 | Calhoun County | 40.2 |
| 70 | Mecosta County | 40 |
| 70 | Muskegon County | 40 |
| 72 | St. Joseph County | 39.9 |
| 73 | Gratiot County | 39.6 |
| 74 | Marquette County | 39.3 |
| 75 | Ionia County | 39.1 |
| 76 | Wayne County | 37.9 |
| 77 | Ottawa County | 36.5 |
| 78 | Kent County | 35.9 |
| 79 | Kalamazoo County | 35 |
| 79 | Washtenaw County | 35 |
| 81 | Ingham County | 33.3 |
| 82 | Houghton County | 32.2 |
| 83 | Isabella County | 30.1 |