Data / Rankings / Median age / Counties in Michigan

Counties in Michigan by median age

Alcona County had the highest median age of 83 counties in 2023, at 59.7 years. Isabella County had the lowest, at 29.8 years. The median was 43.9 years and the figure for Michigan was 40.1 years. Source: the U.S. Census Bureau.

Highest59.7Alcona County
Lowest29.8Isabella County
Median43.983 counties
Michigan40.1History

Top 40 counties, 2023

CSVChart (SVG)

Alcona CountyAlcona County: 59.7 years59.7Ontonagon CountyOntonagon County: 59.4 years59.4Roscommon CountyRoscommon County: 57.4 years57.4Keweenaw CountyKeweenaw County: 56.7 years56.7Montmorency CountyMontmorency County: 56.7 years56.7Presque Isle CountyPresque Isle County: 56.2 years56.2Leelanau CountyLeelanau County: 55.3 years55.3Iosco CountyIosco County: 53.5 years53.5Mackinac CountyMackinac County: 53.3 years53.3Iron CountyIron County: 53.2 years53.2Oscoda CountyOscoda County: 52.1 years52.1Schoolcraft CountySchoolcraft County: 52.1 years52.1Cheboygan CountyCheboygan County: 51.9 years51.9Antrim CountyAntrim County: 51.8 years51.8Crawford CountyCrawford County: 51.5 years51.5Gogebic CountyGogebic County: 51.3 years51.3Gladwin CountyGladwin County: 50.8 years50.8Ogemaw CountyOgemaw County: 50.8 years50.8Benzie CountyBenzie County: 50.6 years50.6Lake CountyLake County: 50.3 years50.3Manistee CountyManistee County: 50.3 years50.3Arenac CountyArenac County: 50.1 years50.1Charlevoix CountyCharlevoix County: 50 years50Menominee CountyMenominee County: 49.9 years49.9Huron CountyHuron County: 49.4 years49.4Alger CountyAlger County: 48.8 years48.8Clare CountyClare County: 48.3 years48.3Delta CountyDelta County: 47.8 years47.8Alpena CountyAlpena County: 47.6 years47.6Dickinson CountyDickinson County: 47.4 years47.4Mason CountyMason County: 47.2 years47.2Emmet CountyEmmet County: 46.4 years46.4Baraga CountyBaraga County: 46.2 years46.2Cass CountyCass County: 45.5 years45.5Sanilac CountySanilac County: 45.3 years45.3Lapeer CountyLapeer County: 44.6 years44.6Luce CountyLuce County: 44.6 years44.6Tuscola CountyTuscola County: 44.6 years44.6Otsego CountyOtsego County: 44.5 years44.5St. Clair CountySt. Clair County: 44.3 years44.3
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
years		Change on 2022
1Alcona County59.7+0.4
2Ontonagon County59.4+0.2
3Roscommon County57.4+0.4
4Keweenaw County56.7-0.5
4Montmorency County56.7+0.5
6Presque Isle County56.2+0.1
7Leelanau County55.3+0.1
8Iosco County53.5+0.4
9Mackinac County53.3+0.6
10Iron County53.2-0.2
11Oscoda County52.1+0.1
11Schoolcraft County52.1+0.3
13Cheboygan County51.9-0.1
14Antrim County51.8+0.3
15Crawford County51.5+0.1
16Gogebic County51.3+0.7
17Gladwin County50.8+0.1
17Ogemaw County50.8+0.2
19Benzie County50.6+0.2
20Lake County50.3-1.5
20Manistee County50.3+0.3
22Arenac County50.1+0.1
23Charlevoix County50+0.5
24Menominee County49.9+0.3
25Huron County49.4+0.1
26Alger County48.8+1.6
27Clare County48.3+0.1
28Delta County47.8+0.2
29Alpena County47.60
30Dickinson County47.4+0.2
31Mason County47.2+0.5
32Emmet County46.4+0.6
33Baraga County46.2-0.3
34Cass County45.5+0.2
35Sanilac County45.3+0.1
36Lapeer County44.6+0.1
36Luce County44.6-3.1
36Tuscola County44.6-0.1
39Otsego County44.5-0.1
40St. Clair County44.3+0.2
41Kalkaska County44+0.7
42Oceana County43.9+0.1
43Bay County43.8+0.2
43Livingston County43.8+0.2
43Osceola County43.8+0.3
46Grand Traverse County43.1+0.3
46Shiawassee County43.1-0.1
48Hillsdale County42.80
48Newaygo County42.8+0.4
50Missaukee County42.7+0.1
51Berrien County42.6+0.1
51Monroe County42.60
53Lenawee County42.2+0.2
53Wexford County42.20
55Barry County42-0.2
56Clinton County41.8+0.4
56Midland County41.8+0.1
58Chippewa County41.3+0.5
59Eaton County41.20
59Jackson County41.2+0.1
59Oakland County41.2+0.1
59Van Buren County41.2+0.4
63Macomb County41.1+0.1
63Saginaw County41.1+0.1
65Allegan County40.8+0.4
65Branch County40.8-0.1
67Genesee County40.6+0.1
67Mecosta County40.60
69Calhoun County40.2+0.2
70Montcalm County40.1-0.5
71Muskegon County39.9+0.5
72St. Joseph County39.80
73Gratiot County39.7+0.1
74Marquette County39.2+0.1
75Ionia County38.8-0.3
76Wayne County37.8+0.1
77Ottawa County36.3+0.5
78Kent County35.7+0.1
79Kalamazoo County34.9+0.3
80Washtenaw County34.8+0.4
81Ingham County33.3+0.3
82Houghton County32.3+0.4
83Isabella County29.8+0.9

Other periods

About this ranking

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.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

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/2023/table-based-SF/data/5YRData/acsdt5y2023-b01002.dat. Retrieved 2026-10-08.

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Rank Counties in Michigan by median age using official data, and cite the source.
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Questions

Which county has the highest median age?

Alcona County, with 59.7 years in 2023, according to the U.S. Census Bureau.

Which county has the lowest median age?

Isabella County, with 29.8 years in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Michigan: more rankings