Data / Rankings / Median age on 1 July (US county estimates) / Counties in Minnesota

Counties in Minnesota by median age on 1 July (US county estimates)

Aitkin County had the highest median age on 1 July (US county estimates) of 87 counties in 2021, at 56.6 years. Blue Earth County had the lowest, at 32.3 years. The median was 42 years. Source: the U.S. Census Bureau.

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Highest56.6Aitkin County
Lowest32.3Blue Earth County
Median4287 counties

Map of counties, 2021

Aitkin County: 56.6 yearsAnoka County: 38.8 yearsBecker County: 43.5 yearsBeltrami County: 35.8 yearsBenton County: 37.1 yearsBig Stone County: 47.1 yearsBlue Earth County: 32.3 yearsBrown County: 42.9 yearsCarlton County: 42 yearsCarver County: 39 yearsCass County: 50.4 yearsChippewa County: 41.5 yearsChisago County: 40.8 yearsClay County: 34 yearsClearwater County: 41.9 yearsCook County: 53.5 yearsCottonwood County: 41.8 yearsCrow Wing County: 45 yearsDakota County: 38.9 yearsDodge County: 38.4 yearsDouglas County: 44.1 yearsFaribault County: 44.4 yearsFillmore County: 43 yearsFreeborn County: 43.7 yearsGoodhue County: 42.7 yearsGrant County: 43 yearsHennepin County: 37 yearsHouston County: 44.9 yearsHubbard County: 47 yearsIsanti County: 40 yearsItasca County: 46.6 yearsJackson County: 43.6 yearsKanabec County: 44.7 yearsKandiyohi County: 39.6 yearsKittson County: 48.2 yearsKoochiching County: 50.4 yearsLac qui Parle County: 47.2 yearsLake County: 50 yearsLake of the Woods County: 50.6 yearsLe Sueur County: 41.6 yearsLincoln County: 45.6 yearsLyon County: 37.1 yearsMcLeod County: 41.8 yearsMahnomen County: 37.7 yearsMarshall County: 43.1 yearsMartin County: 44.6 yearsMeeker County: 42.8 yearsMille Lacs County: 41.5 yearsMorrison County: 42.6 yearsMower County: 38.6 yearsMurray County: 47.1 yearsNicollet County: 37.6 yearsNobles County: 35 yearsNorman County: 44.7 yearsOlmsted County: 37.4 yearsOtter Tail County: 46.5 yearsPennington County: 40.4 yearsPine County: 45.4 yearsPipestone County: 41.6 yearsPolk County: 39.5 yearsPope County: 45.5 yearsRamsey County: 36 yearsRed Lake County: 42.5 yearsRedwood County: 40.6 yearsRenville County: 43.3 yearsRice County: 37.6 yearsRock County: 41.7 yearsRoseau County: 42.7 yearsSt. Louis County: 41.6 yearsScott County: 37.8 yearsSherburne County: 36.9 yearsSibley County: 42.3 yearsStearns County: 36.3 yearsSteele County: 40.2 yearsStevens County: 34 yearsSwift County: 42.7 yearsTodd County: 41.9 yearsTraverse County: 46.4 yearsWabasha County: 45.3 yearsWadena County: 42 yearsWaseca County: 40.8 yearsWashington County: 40.1 yearsWatonwan County: 39.7 yearsWilkin County: 42.6 yearsWinona County: 37 yearsWright County: 37.5 yearsYellow Medicine County: 43 years
  • Under 38
  • 38 to 40
  • 40 to 42
  • 42 to 43
  • 43 to 46
  • 46 and over
years, 2021. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Aitkin County: 56.6 yearsAitkin County56.6Cook County: 53.5 yearsCook County53.5Lake of the Woods County: 50.6 yearsLake of the Woods County50.6Cass County: 50.4 yearsCass County50.4Koochiching County: 50.4 yearsKoochiching County50.4Lake County: 50 yearsLake County50Kittson County: 48.2 yearsKittson County48.2Lac qui Parle County: 47.2 yearsLac qui Parle County47.2Big Stone County: 47.1 yearsBig Stone County47.1Murray County: 47.1 yearsMurray County47.1Hubbard County: 47 yearsHubbard County47Itasca County: 46.6 yearsItasca County46.6Otter Tail County: 46.5 yearsOtter Tail County46.5Traverse County: 46.4 yearsTraverse County46.4Lincoln County: 45.6 yearsLincoln County45.6Pope County: 45.5 yearsPope County45.5Pine County: 45.4 yearsPine County45.4Wabasha County: 45.3 yearsWabasha County45.3Crow Wing County: 45 yearsCrow Wing County45Houston County: 44.9 yearsHouston County44.9Kanabec County: 44.7 yearsKanabec County44.7Norman County: 44.7 yearsNorman County44.7Martin County: 44.6 yearsMartin County44.6Faribault County: 44.4 yearsFaribault County44.4Douglas County: 44.1 yearsDouglas County44.1Freeborn County: 43.7 yearsFreeborn County43.7Jackson County: 43.6 yearsJackson County43.6Becker County: 43.5 yearsBecker County43.5Renville County: 43.3 yearsRenville County43.3Marshall County: 43.1 yearsMarshall County43.1Fillmore County: 43 yearsFillmore County43Grant County: 43 yearsGrant County43Yellow Medicine County: 43 yearsYellow Medicine County43Brown County: 42.9 yearsBrown County42.9Meeker County: 42.8 yearsMeeker County42.8Goodhue County: 42.7 yearsGoodhue County42.7Roseau County: 42.7 yearsRoseau County42.7Swift County: 42.7 yearsSwift County42.7Morrison County: 42.6 yearsMorrison County42.6Wilkin County: 42.6 yearsWilkin County42.6Aitkin County: 56.6 yearsAitkin County56.6Cook County: 53.5 yearsCook County53.5Lake of the Woods County: 50.6 yearsLake of the Woods County50.6Cass County: 50.4 yearsCass County50.4Koochiching County: 50.4 yearsKoochiching County50.4Lake County: 50 yearsLake County50Kittson County: 48.2 yearsKittson County48.2Lac qui Parle County: 47.2 yearsLac qui Parle County47.2Big Stone County: 47.1 yearsBig Stone County47.1Murray County: 47.1 yearsMurray County47.1Hubbard County: 47 yearsHubbard County47Itasca County: 46.6 yearsItasca County46.6Otter Tail County: 46.5 yearsOtter Tail County46.5Traverse County: 46.4 yearsTraverse County46.4Lincoln County: 45.6 yearsLincoln County45.6Pope County: 45.5 yearsPope County45.5Pine County: 45.4 yearsPine County45.4Wabasha County: 45.3 yearsWabasha County45.3Crow Wing County: 45 yearsCrow Wing County45Houston County: 44.9 yearsHouston County44.9Kanabec County: 44.7 yearsKanabec County44.7Norman County: 44.7 yearsNorman County44.7Martin County: 44.6 yearsMartin County44.6Faribault County: 44.4 yearsFaribault County44.4Douglas County: 44.1 yearsDouglas County44.1Freeborn County: 43.7 yearsFreeborn County43.7Jackson County: 43.6 yearsJackson County43.6Becker County: 43.5 yearsBecker County43.5Renville County: 43.3 yearsRenville County43.3Marshall County: 43.1 yearsMarshall County43.1Fillmore County: 43 yearsFillmore County43Grant County: 43 yearsGrant County43Yellow Medicine County: 43 yearsYellow Medicine County43Brown County: 42.9 yearsBrown County42.9Meeker County: 42.8 yearsMeeker County42.8Goodhue County: 42.7 yearsGoodhue County42.7Roseau County: 42.7 yearsRoseau County42.7Swift County: 42.7 yearsSwift County42.7Morrison County: 42.6 yearsMorrison County42.6Wilkin County: 42.6 yearsWilkin County42.6
years. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Full ranking

RankCounties2021
years		Change on 2020
1Aitkin County56.6+0.2
2Cook County53.5-0.1
3Lake of the Woods County50.6-0.8
4Cass County50.4+0.2
4Koochiching County50.40
6Lake County50-0.4
7Kittson County48.2-0.7
8Lac qui Parle County47.2-1.1
9Big Stone County47.1-0.7
9Murray County47.1-0.5
11Hubbard County47-0.1
12Itasca County46.6+0.1
13Otter Tail County46.50
14Traverse County46.4+0.1
15Lincoln County45.6+0.2
16Pope County45.50
17Pine County45.4+0.1
18Wabasha County45.30
19Crow Wing County45+0.1
20Houston County44.90
21Kanabec County44.7-0.4
21Norman County44.7-0.2
23Martin County44.6-0.4
24Faribault County44.4-0.4
25Douglas County44.1+0.3
26Freeborn County43.7-0.1
27Jackson County43.6+0.1
28Becker County43.5+0.2
29Renville County43.3-0.3
30Marshall County43.1+0.1
31Fillmore County43+0.1
31Grant County43-0.7
31Yellow Medicine County43+0.1
34Brown County42.9-0.2
35Meeker County42.8+0.2
36Goodhue County42.7-0.2
36Roseau County42.70
36Swift County42.7-0.1
39Morrison County42.6+0.2
39Wilkin County42.6+0.2
41Red Lake County42.5+0.2
42Sibley County42.3-0.1
43Carlton County420
43Wadena County42-0.3
45Clearwater County41.9-0.4
45Todd County41.9+0.4
47Cottonwood County41.8-0.7
47McLeod County41.8+0.2
49Rock County41.7-0.3
50Le Sueur County41.6+0.1
50Pipestone County41.6-0.1
50St. Louis County41.6+0.1
53Chippewa County41.5+0.3
53Mille Lacs County41.5-0.2
55Chisago County40.80
55Waseca County40.8+0.1
57Redwood County40.6-0.4
58Pennington County40.4+0.6
59Steele County40.2+0.2
60Washington County40.10
61Isanti County40+0.3
62Watonwan County39.7+0.2
63Kandiyohi County39.6+0.2
64Polk County39.5+0.2
65Carver County39+0.3
66Dakota County38.9+0.2
67Anoka County38.8+0.1
68Mower County38.60
69Dodge County38.40
70Scott County37.8+0.2
71Mahnomen County37.7-0.3
72Nicollet County37.6+0.4
72Rice County37.6+0.1
74Wright County37.5+0.1
75Olmsted County37.4+0.2
76Benton County37.1+0.2
76Lyon County37.10
78Hennepin County37+0.5
78Winona County37+0.2
80Sherburne County36.90
81Stearns County36.30
82Ramsey County36+0.4
83Beltrami County35.8+0.2
84Nobles County35+0.1
85Clay County34+0.1
85Stevens County34-0.3
87Blue Earth County32.3+0.1

Other periods

About this ranking

Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.

Counties only: the county file has no state or national medians, and medians cannot be added up. A single-year estimate, unlike median_age, which for US places is a five-year American Community Survey estimate.

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. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (Counties in Minnesota by median age on 1 July (US county estimates), 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Minnesota by median age on 1 July (US county estimates), 2021. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Counties in Minnesota by median age on 1 July (US county estimates), 2021. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Minnesota by median age on 1 July (US county estimates), 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_minnesota_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Minnesota by median age on 1 July (US county estimates), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Minnesota by median age on 1 July (US county estimates), 2021
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest median age on 1 July (US county estimates)?

Aitkin County, with 56.6 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age on 1 July (US county estimates)?

Blue Earth County, with 32.3 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, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Median age on 1 July (US county estimates): other rankings

Counties in Minnesota: more rankings