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 2017, at 55.2 years. Blue Earth County had the lowest, at 31.6 years. The median was 42.1 years. Source: the U.S. Census Bureau.

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Highest55.2Aitkin County
Lowest31.6Blue Earth County
Median42.187 counties

Map of counties, 2017

Aitkin County: 55.2 yearsAnoka County: 38.3 yearsBecker County: 42.6 yearsBeltrami County: 34.6 yearsBenton County: 36.2 yearsBig Stone County: 48.5 yearsBlue Earth County: 31.6 yearsBrown County: 43 yearsCarlton County: 41.7 yearsCarver County: 37.7 yearsCass County: 49.2 yearsChippewa County: 42 yearsChisago County: 40.6 yearsClay County: 33 yearsClearwater County: 42.7 yearsCook County: 52.5 yearsCottonwood County: 43.5 yearsCrow Wing County: 44.5 yearsDakota County: 38.1 yearsDodge County: 38.2 yearsDouglas County: 44 yearsFaribault County: 45.3 yearsFillmore County: 42.9 yearsFreeborn County: 44 yearsGoodhue County: 42.6 yearsGrant County: 43.6 yearsHennepin County: 36.1 yearsHouston County: 45.3 yearsHubbard County: 48 yearsIsanti County: 39.5 yearsItasca County: 46.1 yearsJackson County: 43.8 yearsKanabec County: 45.2 yearsKandiyohi County: 39.2 yearsKittson County: 48.6 yearsKoochiching County: 49 yearsLac qui Parle County: 49 yearsLake County: 50.9 yearsLake of the Woods County: 51.2 yearsLe Sueur County: 41 yearsLincoln County: 46 yearsLyon County: 36.2 yearsMcLeod County: 41.1 yearsMahnomen County: 37.2 yearsMarshall County: 43.7 yearsMartin County: 45.4 yearsMeeker County: 42.6 yearsMille Lacs County: 41.2 yearsMorrison County: 42 yearsMower County: 38.7 yearsMurray County: 47.1 yearsNicollet County: 36.7 yearsNobles County: 35.4 yearsNorman County: 43.7 yearsOlmsted County: 37 yearsOtter Tail County: 46.6 yearsPennington County: 39.4 yearsPine County: 44.6 yearsPipestone County: 42.3 yearsPolk County: 38.9 yearsPope County: 46.4 yearsRamsey County: 35.1 yearsRed Lake County: 42.7 yearsRedwood County: 42 yearsRenville County: 44.5 yearsRice County: 37 yearsRock County: 41.1 yearsRoseau County: 42.1 yearsSt. Louis County: 41.1 yearsScott County: 36.5 yearsSherburne County: 36.3 yearsSibley County: 41.7 yearsStearns County: 35.6 yearsSteele County: 39.3 yearsStevens County: 34.3 yearsSwift County: 43.2 yearsTodd County: 41.9 yearsTraverse County: 47.6 yearsWabasha County: 45.1 yearsWadena County: 43.2 yearsWaseca County: 40 yearsWashington County: 39.5 yearsWatonwan County: 39.7 yearsWilkin County: 42.6 yearsWinona County: 35.9 yearsWright County: 36.7 yearsYellow Medicine County: 42.4 years
  • Under 37
  • 37 to 40
  • 40 to 42
  • 42 to 44
  • 44 to 46
  • 46 and over
years, 2017. 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, 2017

Aitkin County: 55.2 yearsAitkin County55.2Cook County: 52.5 yearsCook County52.5Lake of the Woods County: 51.2 yearsLake of the Woods County51.2Lake County: 50.9 yearsLake County50.9Cass County: 49.2 yearsCass County49.2Koochiching County: 49 yearsKoochiching County49Lac qui Parle County: 49 yearsLac qui Parle County49Kittson County: 48.6 yearsKittson County48.6Big Stone County: 48.5 yearsBig Stone County48.5Hubbard County: 48 yearsHubbard County48Traverse County: 47.6 yearsTraverse County47.6Murray County: 47.1 yearsMurray County47.1Otter Tail County: 46.6 yearsOtter Tail County46.6Pope County: 46.4 yearsPope County46.4Itasca County: 46.1 yearsItasca County46.1Lincoln County: 46 yearsLincoln County46Martin County: 45.4 yearsMartin County45.4Faribault County: 45.3 yearsFaribault County45.3Houston County: 45.3 yearsHouston County45.3Kanabec County: 45.2 yearsKanabec County45.2Wabasha County: 45.1 yearsWabasha County45.1Pine County: 44.6 yearsPine County44.6Crow Wing County: 44.5 yearsCrow Wing County44.5Renville County: 44.5 yearsRenville County44.5Douglas County: 44 yearsDouglas County44Freeborn County: 44 yearsFreeborn County44Jackson County: 43.8 yearsJackson County43.8Marshall County: 43.7 yearsMarshall County43.7Norman County: 43.7 yearsNorman County43.7Grant County: 43.6 yearsGrant County43.6Cottonwood County: 43.5 yearsCottonwood County43.5Swift County: 43.2 yearsSwift County43.2Wadena County: 43.2 yearsWadena County43.2Brown County: 43 yearsBrown County43Fillmore County: 42.9 yearsFillmore County42.9Clearwater County: 42.7 yearsClearwater County42.7Red Lake County: 42.7 yearsRed Lake County42.7Becker County: 42.6 yearsBecker County42.6Goodhue County: 42.6 yearsGoodhue County42.6Meeker County: 42.6 yearsMeeker County42.6Aitkin County: 55.2 yearsAitkin County55.2Cook County: 52.5 yearsCook County52.5Lake of the Woods County: 51.2 yearsLake of the Woods County51.2Lake County: 50.9 yearsLake County50.9Cass County: 49.2 yearsCass County49.2Koochiching County: 49 yearsKoochiching County49Lac qui Parle County: 49 yearsLac qui Parle County49Kittson County: 48.6 yearsKittson County48.6Big Stone County: 48.5 yearsBig Stone County48.5Hubbard County: 48 yearsHubbard County48Traverse County: 47.6 yearsTraverse County47.6Murray County: 47.1 yearsMurray County47.1Otter Tail County: 46.6 yearsOtter Tail County46.6Pope County: 46.4 yearsPope County46.4Itasca County: 46.1 yearsItasca County46.1Lincoln County: 46 yearsLincoln County46Martin County: 45.4 yearsMartin County45.4Faribault County: 45.3 yearsFaribault County45.3Houston County: 45.3 yearsHouston County45.3Kanabec County: 45.2 yearsKanabec County45.2Wabasha County: 45.1 yearsWabasha County45.1Pine County: 44.6 yearsPine County44.6Crow Wing County: 44.5 yearsCrow Wing County44.5Renville County: 44.5 yearsRenville County44.5Douglas County: 44 yearsDouglas County44Freeborn County: 44 yearsFreeborn County44Jackson County: 43.8 yearsJackson County43.8Marshall County: 43.7 yearsMarshall County43.7Norman County: 43.7 yearsNorman County43.7Grant County: 43.6 yearsGrant County43.6Cottonwood County: 43.5 yearsCottonwood County43.5Swift County: 43.2 yearsSwift County43.2Wadena County: 43.2 yearsWadena County43.2Brown County: 43 yearsBrown County43Fillmore County: 42.9 yearsFillmore County42.9Clearwater County: 42.7 yearsClearwater County42.7Red Lake County: 42.7 yearsRed Lake County42.7Becker County: 42.6 yearsBecker County42.6Goodhue County: 42.6 yearsGoodhue County42.6Meeker County: 42.6 yearsMeeker 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

RankCounties2017
years		Change on 2016
1Aitkin County55.2+0.3
2Cook County52.50
3Lake of the Woods County51.2+0.4
4Lake County50.9+0.4
5Cass County49.20
6Koochiching County49+0.1
6Lac qui Parle County49-0.2
8Kittson County48.6+0.4
9Big Stone County48.5-0.2
10Hubbard County48-0.2
11Traverse County47.6-1.3
12Murray County47.1-0.3
13Otter Tail County46.60
14Pope County46.4+0.2
15Itasca County46.1+0.2
16Lincoln County460
17Martin County45.4+0.1
18Faribault County45.3-0.2
18Houston County45.3+0.3
20Kanabec County45.2+0.1
21Wabasha County45.1+0.1
22Pine County44.6+0.1
23Crow Wing County44.5+0.1
23Renville County44.5-0.6
25Douglas County44+0.1
25Freeborn County44-0.5
27Jackson County43.8-0.2
28Marshall County43.7-0.1
28Norman County43.7-1.4
30Grant County43.6-0.3
31Cottonwood County43.5-0.3
32Swift County43.2-0.2
32Wadena County43.2+0.1
34Brown County43-0.1
35Fillmore County42.9-0.1
36Clearwater County42.70
36Red Lake County42.7+0.6
38Becker County42.60
38Goodhue County42.6-0.1
38Meeker County42.6+0.2
38Wilkin County42.6-0.1
42Yellow Medicine County42.4-0.3
43Pipestone County42.3-0.4
44Roseau County42.1+0.4
45Chippewa County420
45Morrison County42+0.1
45Redwood County42-0.6
48Todd County41.9-0.5
49Carlton County41.7+0.1
49Sibley County41.70
51Mille Lacs County41.2-0.2
52McLeod County41.1-0.1
52Rock County41.1-0.1
52St. Louis County41.1+0.1
55Le Sueur County41-0.4
56Chisago County40.6-0.1
57Waseca County40+0.2
58Watonwan County39.7+0.1
59Isanti County39.5+0.1
59Washington County39.5+0.1
61Pennington County39.4+0.4
62Steele County39.3-0.2
63Kandiyohi County39.2-0.1
64Polk County38.90
65Mower County38.7-0.2
66Anoka County38.30
67Dodge County38.2+0.2
68Dakota County38.1+0.1
69Carver County37.7+0.2
70Mahnomen County37.2-0.4
71Olmsted County37+0.2
71Rice County37+0.3
73Nicollet County36.7+0.3
73Wright County36.7+0.2
75Scott County36.5+0.2
76Sherburne County36.3+0.3
77Benton County36.2+0.1
77Lyon County36.2+0.3
79Hennepin County36.1+0.1
80Winona County35.9+0.6
81Stearns County35.6+0.4
82Nobles County35.4+0.2
83Ramsey County35.1+0.2
84Beltrami County34.6+0.1
85Stevens County34.3+0.4
86Clay County33-0.1
87Blue Earth County31.6+0.3

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), 2017) [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), 2017. 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=2017. 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), 2017. 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=2017.

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), 2017 [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=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_minnesota_by_2017,
  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), 2017}},
  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=2017. 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), 2017
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=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2017.
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 55.2 years in 2017, according to the U.S. Census Bureau.

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

Blue Earth County, with 31.6 years in 2017.

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