Data / Rankings / Median age / Counties in Minnesota

Counties in Minnesota by median age

Aitkin County had the highest median age of 87 counties in 2021, at 55.8 years. Blue Earth County had the lowest, at 31.4 years. The median was 41.6 years and the figure for Minnesota was 38.2 years. Source: the U.S. Census Bureau.

Highest55.8Aitkin County
Lowest31.4Blue Earth County
Median41.687 counties
Minnesota38.2History

Top 40 counties, 2021

CSVChart (SVG)

Aitkin CountyAitkin County: 55.8 years55.8Cook CountyCook County: 52.4 years52.4Koochiching CountyKoochiching County: 50.4 years50.4Lake CountyLake County: 49.3 years49.3Cass CountyCass County: 48.8 years48.8Lac qui Parle CountyLac qui Parle County: 48.6 years48.6Lake of the Woods CountyLake of the Woods County: 48.5 years48.5Hubbard CountyHubbard County: 48.2 years48.2Big Stone CountyBig Stone County: 47.7 years47.7Kittson CountyKittson County: 47.7 years47.7Murray CountyMurray County: 46.6 years46.6Itasca CountyItasca County: 46.5 years46.5Otter Tail CountyOtter Tail County: 46.3 years46.3Traverse CountyTraverse County: 46.2 years46.2Pine CountyPine County: 45.9 years45.9Pope CountyPope County: 45.9 years45.9Lincoln CountyLincoln County: 45.4 years45.4Kanabec CountyKanabec County: 45.2 years45.2Martin CountyMartin County: 45.2 years45.2Wabasha CountyWabasha County: 45.2 years45.2Houston CountyHouston County: 44.8 years44.8Crow Wing CountyCrow Wing County: 44.6 years44.6Faribault CountyFaribault County: 44.6 years44.6Grant CountyGrant County: 44.4 years44.4Jackson CountyJackson County: 44.4 years44.4Douglas CountyDouglas County: 43.7 years43.7Freeborn CountyFreeborn County: 43.7 years43.7Norman CountyNorman County: 43.5 years43.5Swift CountySwift County: 43.4 years43.4Todd CountyTodd County: 43.4 years43.4Renville CountyRenville County: 43.1 years43.1Red Lake CountyRed Lake County: 42.9 years42.9Yellow Medicine CountyYellow Medicine County: 42.5 years42.5Becker CountyBecker County: 42.3 years42.3Marshall CountyMarshall County: 42.3 years42.3Goodhue CountyGoodhue County: 42.1 years42.1Meeker CountyMeeker County: 42.1 years42.1Morrison CountyMorrison County: 42 years42Wilkin CountyWilkin County: 42 years42Brown CountyBrown County: 41.7 years41.7
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
years
1Aitkin County55.8
2Cook County52.4
3Koochiching County50.4
4Lake County49.3
5Cass County48.8
6Lac qui Parle County48.6
7Lake of the Woods County48.5
8Hubbard County48.2
9Big Stone County47.7
9Kittson County47.7
11Murray County46.6
12Itasca County46.5
13Otter Tail County46.3
14Traverse County46.2
15Pine County45.9
15Pope County45.9
17Lincoln County45.4
18Kanabec County45.2
18Martin County45.2
18Wabasha County45.2
21Houston County44.8
22Crow Wing County44.6
22Faribault County44.6
24Grant County44.4
24Jackson County44.4
26Douglas County43.7
26Freeborn County43.7
28Norman County43.5
29Swift County43.4
29Todd County43.4
31Renville County43.1
32Red Lake County42.9
33Yellow Medicine County42.5
34Becker County42.3
34Marshall County42.3
36Goodhue County42.1
36Meeker County42.1
38Morrison County42
38Wilkin County42
40Brown County41.7
40Cottonwood County41.7
40Roseau County41.7
43Chippewa County41.6
43Clearwater County41.6
43Fillmore County41.6
43Sibley County41.6
47Carlton County41.3
48Chisago County40.9
48Le Sueur County40.9
48St. Louis County40.9
51McLeod County40.8
51Watonwan County40.8
53Wadena County40.7
54Pipestone County40.6
54Redwood County40.6
56Rock County40.4
57Mille Lacs County40.3
58Isanti County40.2
59Waseca County40
60Steele County39.6
60Washington County39.6
62Pennington County39.5
63Kandiyohi County39.2
64Polk County39
65Anoka County38.7
65Mower County38.7
67Dodge County38.4
68Carver County38.2
69Dakota County38.1
70Olmsted County37.4
70Wright County37.4
72Scott County37
73Hennepin County36.9
73Rice County36.9
75Nicollet County36.5
76Nobles County36.4
76Sherburne County36.4
78Benton County36
79Lyon County35.9
80Winona County35.6
81Ramsey County35.3
82Mahnomen County35.1
83Stearns County34.9
84Beltrami County34.3
85Stevens County33.9
86Clay County32.9
87Blue Earth County31.4

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/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Aitkin County, with 55.8 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Blue Earth County, with 31.4 years in 2021.

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 Minnesota: more rankings