Counties in Wisconsin by median age on 1 July (US county estimates), 2025

Vilas County had the highest median age on 1 July (US county estimates) of 72 counties in 2025, at 58.8 years. Menominee County had the lowest, at 35.2 years. The median was 44.4 years. Source: the U.S. Census Bureau.

Highest58.8Vilas County

Lowest35.2Menominee County

Median44.472 counties

Map of counties, 2025

Under 40
40 to 43
43 to 44
44 to 47
47 to 51
51 and over

years, 2025. 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, 2025

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

Rank	Counties	2025 years	Change on 2024
1	Vilas County	58.8	+0.4
2	Florence County	58.2	-0.1
3	Iron County	57.8	+0.3
4	Burnett County	57.5	+0.6
5	Adams County	56.1	+0.4
6	Bayfield County	55.9	+0.3
6	Door County	55.9	+0.1
8	Oneida County	54.6	+0.3
9	Price County	54.4	+0.6
9	Sawyer County	54.4	+0.3
11	Washburn County	54.3	+0.3
12	Marquette County	50.6	0
13	Waushara County	50.5	0
14	Forest County	50	+0.1
15	Langlade County	49.9	-0.1
15	Rusk County	49.9	+0.1
17	Marinette County	49.4	-0.1
18	Lincoln County	49.3	0
19	Oconto County	48.1	+0.3
20	Polk County	47.5	+0.2
21	Buffalo County	47	+0.3
21	Juneau County	47	+0.1
23	Crawford County	46.7	-0.3
24	Pepin County	46.6	+0.4
25	Green Lake County	46.5	0
26	Waupaca County	46.1	0
27	Barron County	46	+0.3
28	Richland County	45.9	+0.1
29	Manitowoc County	45.6	+0.2
30	Shawano County	45.4	0
31	Kewaunee County	45.2	+0.3
32	Iowa County	45.1	+0.4
33	Washington County	45	+0.2
34	Green County	44.9	+0.3
35	Ozaukee County	44.8	+0.2
36	Jackson County	44.4	+0.5
36	Wood County	44.4	+0.1
38	Taylor County	44.3	+0.2
38	Waukesha County	44.3	+0.1
40	Columbia County	43.9	0
40	Dodge County	43.9	+0.1
42	Ashland County	43.7	+0.2
43	Douglas County	43.4	0
44	Walworth County	43.1	+0.4
45	Sheboygan County	42.9	+0.3
46	Calumet County	42.8	+0.5
46	Chippewa County	42.8	+0.2
48	Vernon County	42.6	+0.2
49	Fond du Lac County	42.5	+0.3
49	Sauk County	42.5	+0.1
51	Jefferson County	42.4	+0.4
52	Marathon County	42.1	+0.2
53	St. Croix County	41.5	+0.4
54	Racine County	41.4	+0.2
55	Trempealeau County	40.9	0
56	Rock County	40.8	+0.1
57	Lafayette County	40.6	+0.1
58	Monroe County	40.4	+0.2
59	Kenosha County	40.1	+0.2
60	Outagamie County	39.8	+0.2
60	Winnebago County	39.8	+0.2
62	Pierce County	39.5	+0.4
62	Portage County	39.5	+0.3
64	Brown County	39.1	+0.2
65	La Crosse County	38.4	+0.2
66	Grant County	37.4	+0.2
67	Clark County	37.1	-0.1
68	Dunn County	37	+0.3
69	Eau Claire County	36.7	+0.2
70	Dane County	36.6	+0.2
71	Milwaukee County	35.9	+0.2
72	Menominee County	35.2	-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 Wisconsin by median age on 1 July (US county estimates), 2025) [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 Wisconsin by median age on 1 July (US county estimates), 2025. 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/wisconsin-counties. 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 Wisconsin by median age on 1 July (US county estimates), 2025. 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/wisconsin-counties.

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 Wisconsin by median age on 1 July (US county estimates), 2025 [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/wisconsin-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_wisconsin_by_2025,
  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 Wisconsin by median age on 1 July (US county estimates), 2025}},
  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/wisconsin-counties. 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 Wisconsin by median age on 1 July (US county estimates), 2025
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/wisconsin-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/wisconsin-counties.
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)?

Vilas County, with 58.8 years in 2025, according to the U.S. Census Bureau.

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

Menominee County, with 35.2 years in 2025.

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.