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 2015, at 54.5 years. Blue Earth County had the lowest, at 31.1 years. The median was 42.4 years. Source: the U.S. Census Bureau.

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Highest54.5Aitkin County
Lowest31.1Blue Earth County
Median42.487 counties

Map of counties, 2015

Aitkin County: 54.5 yearsAnoka County: 38.2 yearsBecker County: 42.4 yearsBeltrami County: 34.2 yearsBenton County: 35.8 yearsBig Stone County: 49.2 yearsBlue Earth County: 31.1 yearsBrown County: 43.3 yearsCarlton County: 41.5 yearsCarver County: 37.3 yearsCass County: 48.9 yearsChippewa County: 42.3 yearsChisago County: 40.6 yearsClay County: 32.8 yearsClearwater County: 42.6 yearsCook County: 52.3 yearsCottonwood County: 43.8 yearsCrow Wing County: 44.1 yearsDakota County: 37.8 yearsDodge County: 37.9 yearsDouglas County: 44 yearsFaribault County: 45.6 yearsFillmore County: 43.3 yearsFreeborn County: 44.5 yearsGoodhue County: 42.8 yearsGrant County: 45.1 yearsHennepin County: 35.9 yearsHouston County: 44.9 yearsHubbard County: 48.4 yearsIsanti County: 39.5 yearsItasca County: 45.7 yearsJackson County: 43.9 yearsKanabec County: 44.6 yearsKandiyohi County: 39.4 yearsKittson County: 47.9 yearsKoochiching County: 48.2 yearsLac qui Parle County: 49.2 yearsLake County: 50.3 yearsLake of the Woods County: 50.7 yearsLe Sueur County: 41.2 yearsLincoln County: 45.7 yearsLyon County: 35.7 yearsMcLeod County: 41.1 yearsMahnomen County: 37.3 yearsMarshall County: 43.8 yearsMartin County: 45.5 yearsMeeker County: 42.4 yearsMille Lacs County: 41.4 yearsMorrison County: 42.1 yearsMower County: 39.3 yearsMurray County: 47.7 yearsNicollet County: 35.8 yearsNobles County: 35.2 yearsNorman County: 44.5 yearsOlmsted County: 36.8 yearsOtter Tail County: 46.8 yearsPennington County: 38.9 yearsPine County: 44 yearsPipestone County: 43.1 yearsPolk County: 39.2 yearsPope County: 46.3 yearsRamsey County: 34.8 yearsRed Lake County: 42.1 yearsRedwood County: 42.9 yearsRenville County: 44.7 yearsRice County: 36.5 yearsRock County: 41 yearsRoseau County: 41.5 yearsSt. Louis County: 40.9 yearsScott County: 36 yearsSherburne County: 36 yearsSibley County: 41.9 yearsStearns County: 34.9 yearsSteele County: 39.4 yearsStevens County: 33.5 yearsSwift County: 44.3 yearsTodd County: 42.9 yearsTraverse County: 48 yearsWabasha County: 44.9 yearsWadena County: 43 yearsWaseca County: 39.9 yearsWashington County: 39.3 yearsWatonwan County: 39.9 yearsWilkin County: 43.2 yearsWinona County: 35 yearsWright County: 36.2 yearsYellow Medicine County: 43.4 years
  • Under 36
  • 36 to 40
  • 40 to 42
  • 42 to 44
  • 44 to 46
  • 46 and over
years, 2015. 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, 2015

Aitkin County: 54.5 yearsAitkin County54.5Cook County: 52.3 yearsCook County52.3Lake of the Woods County: 50.7 yearsLake of the Woods County50.7Lake County: 50.3 yearsLake County50.3Big Stone County: 49.2 yearsBig Stone County49.2Lac qui Parle County: 49.2 yearsLac qui Parle County49.2Cass County: 48.9 yearsCass County48.9Hubbard County: 48.4 yearsHubbard County48.4Koochiching County: 48.2 yearsKoochiching County48.2Traverse County: 48 yearsTraverse County48Kittson County: 47.9 yearsKittson County47.9Murray County: 47.7 yearsMurray County47.7Otter Tail County: 46.8 yearsOtter Tail County46.8Pope County: 46.3 yearsPope County46.3Itasca County: 45.7 yearsItasca County45.7Lincoln County: 45.7 yearsLincoln County45.7Faribault County: 45.6 yearsFaribault County45.6Martin County: 45.5 yearsMartin County45.5Grant County: 45.1 yearsGrant County45.1Houston County: 44.9 yearsHouston County44.9Wabasha County: 44.9 yearsWabasha County44.9Renville County: 44.7 yearsRenville County44.7Kanabec County: 44.6 yearsKanabec County44.6Freeborn County: 44.5 yearsFreeborn County44.5Norman County: 44.5 yearsNorman County44.5Swift County: 44.3 yearsSwift County44.3Crow Wing County: 44.1 yearsCrow Wing County44.1Douglas County: 44 yearsDouglas County44Pine County: 44 yearsPine County44Jackson County: 43.9 yearsJackson County43.9Cottonwood County: 43.8 yearsCottonwood County43.8Marshall County: 43.8 yearsMarshall County43.8Yellow Medicine County: 43.4 yearsYellow Medicine County43.4Brown County: 43.3 yearsBrown County43.3Fillmore County: 43.3 yearsFillmore County43.3Wilkin County: 43.2 yearsWilkin County43.2Pipestone County: 43.1 yearsPipestone County43.1Wadena County: 43 yearsWadena County43Redwood County: 42.9 yearsRedwood County42.9Todd County: 42.9 yearsTodd County42.9Aitkin County: 54.5 yearsAitkin County54.5Cook County: 52.3 yearsCook County52.3Lake of the Woods County: 50.7 yearsLake of the Woods County50.7Lake County: 50.3 yearsLake County50.3Big Stone County: 49.2 yearsBig Stone County49.2Lac qui Parle County: 49.2 yearsLac qui Parle County49.2Cass County: 48.9 yearsCass County48.9Hubbard County: 48.4 yearsHubbard County48.4Koochiching County: 48.2 yearsKoochiching County48.2Traverse County: 48 yearsTraverse County48Kittson County: 47.9 yearsKittson County47.9Murray County: 47.7 yearsMurray County47.7Otter Tail County: 46.8 yearsOtter Tail County46.8Pope County: 46.3 yearsPope County46.3Itasca County: 45.7 yearsItasca County45.7Lincoln County: 45.7 yearsLincoln County45.7Faribault County: 45.6 yearsFaribault County45.6Martin County: 45.5 yearsMartin County45.5Grant County: 45.1 yearsGrant County45.1Houston County: 44.9 yearsHouston County44.9Wabasha County: 44.9 yearsWabasha County44.9Renville County: 44.7 yearsRenville County44.7Kanabec County: 44.6 yearsKanabec County44.6Freeborn County: 44.5 yearsFreeborn County44.5Norman County: 44.5 yearsNorman County44.5Swift County: 44.3 yearsSwift County44.3Crow Wing County: 44.1 yearsCrow Wing County44.1Douglas County: 44 yearsDouglas County44Pine County: 44 yearsPine County44Jackson County: 43.9 yearsJackson County43.9Cottonwood County: 43.8 yearsCottonwood County43.8Marshall County: 43.8 yearsMarshall County43.8Yellow Medicine County: 43.4 yearsYellow Medicine County43.4Brown County: 43.3 yearsBrown County43.3Fillmore County: 43.3 yearsFillmore County43.3Wilkin County: 43.2 yearsWilkin County43.2Pipestone County: 43.1 yearsPipestone County43.1Wadena County: 43 yearsWadena County43Redwood County: 42.9 yearsRedwood County42.9Todd County: 42.9 yearsTodd County42.9
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

RankCounties2015
years		Change on 2014
1Aitkin County54.5+0.3
2Cook County52.3+0.6
3Lake of the Woods County50.7+0.2
4Lake County50.3+0.4
5Big Stone County49.2+0.2
5Lac qui Parle County49.2-0.3
7Cass County48.9+0.2
8Hubbard County48.4+0.1
9Koochiching County48.2+0.2
10Traverse County480
11Kittson County47.90
12Murray County47.7+0.2
13Otter Tail County46.8+0.1
14Pope County46.3+0.2
15Itasca County45.70
15Lincoln County45.7-0.4
17Faribault County45.6-0.1
18Martin County45.5+0.1
19Grant County45.1-0.2
20Houston County44.9-0.1
20Wabasha County44.9+0.5
22Renville County44.7-0.1
23Kanabec County44.6+0.3
24Freeborn County44.50
24Norman County44.5-0.8
26Swift County44.3-0.5
27Crow Wing County44.1+0.3
28Douglas County440
28Pine County44+0.3
30Jackson County43.9+0.4
31Cottonwood County43.8-0.4
31Marshall County43.80
33Yellow Medicine County43.40
34Brown County43.3-0.1
34Fillmore County43.30
36Wilkin County43.2+0.2
37Pipestone County43.1-0.3
38Wadena County430
39Redwood County42.90
39Todd County42.9-0.1
41Goodhue County42.80
42Clearwater County42.6+0.2
43Becker County42.4-0.3
43Meeker County42.4+0.1
45Chippewa County42.3-0.6
46Morrison County42.10
46Red Lake County42.1+0.1
48Sibley County41.9+0.6
49Carlton County41.5+0.1
49Roseau County41.5+0.2
51Mille Lacs County41.4+0.2
52Le Sueur County41.2+0.1
53McLeod County41.1+0.1
54Rock County41-0.3
55St. Louis County40.9-0.1
56Chisago County40.60
57Waseca County39.9+0.2
57Watonwan County39.9-0.3
59Isanti County39.5+0.2
60Kandiyohi County39.4-0.2
60Steele County39.4+0.1
62Mower County39.3-0.2
62Washington County39.3+0.2
64Polk County39.2-0.4
65Pennington County38.9-0.1
66Anoka County38.2+0.2
67Dodge County37.9+0.2
68Dakota County37.8+0.1
69Carver County37.3+0.2
69Mahnomen County37.3+0.4
71Olmsted County36.80
72Rice County36.5+0.2
73Wright County36.2+0.3
74Scott County36+0.2
74Sherburne County36+0.3
76Hennepin County35.90
77Benton County35.8+0.2
77Nicollet County35.8+0.3
79Lyon County35.7+0.2
80Nobles County35.2-0.4
81Winona County35+0.4
82Stearns County34.9+0.2
83Ramsey County34.8+0.2
84Beltrami County34.2+0.3
85Stevens County33.5+0.1
86Clay County32.8+0.2
87Blue Earth County31.1+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), 2015) [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), 2015. 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=2015. 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), 2015. 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=2015.

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), 2015 [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=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_minnesota_by_2015,
  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), 2015}},
  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=2015. 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), 2015
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=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/minnesota-counties?period=2015.
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 54.5 years in 2015, according to the U.S. Census Bureau.

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

Blue Earth County, with 31.1 years in 2015.

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