Demographics of Marinette County, Wisconsin

Marinette County, Wisconsin had 42,574 people on July 1, 2025, by the Census Bureau’s estimate: +687 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Marinette County, in four figures

42,574
Population: July 1, 2025, Vintage 2025 estimate.; +1.6%
Change since July 2020: +687 people.; 48.7 ±0.3
Median age: ACS 2020–⁠2024.; $63,809 ±$2,744
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Marinette County, Wisconsin's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Marinette County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Marinette County, Wisconsin's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Marinette County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	41,887	100.0	100.0
2021	41,860	99.9	100.2
2022	41,971	100.2	100.7
2023	42,109	100.5	101.6
2024	42,390	101.2	102.5
2025	42,574	101.6	103.1

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Population of Marinette County, Wisconsin on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	41,887	+13	−58	0	+68
2021	41,860	−27	−262	+4	+207
2022	41,971	+111	−291	+31	+368
2023	42,109	+138	−217	+31	+327
2024	42,390	+281	−193	+60	+417
2025	42,574	+184	−197	+15	+373

Age, 2020–2024

The median age is 48.7 ±0.3: for men 48.0 ±0.4 and for women 49.6 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Marinette County by age, ACS 2020–2024
Age	People	Share	Wisconsin	United States
Under 5	1,934 ±90	4.6% ±0.2	5.3% ±<0.1	5.6% ±<0.1
5 to 17	5,998 ±334	14.3% ±0.8	16.0% ±0.1	16.3% ±<0.1
18 to 24	2,628 ±182	6.3% ±0.4	9.3% ±0.1	9.1% ±<0.1
25 to 44	8,880 ±317	21.1% ±0.8	25.2% ±0.1	26.9% ±<0.1
45 to 64	11,970 ±407	28.5% ±1.0	25.6% ±0.1	24.8% ±<0.1
65 and over	10,636 ±481	25.3% ±1.1	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $63,809 ±$2,744, and income per person $36,118 ±$1,468, in 2024 dollars. The median is $77,485 ±$455 in Wisconsin and $80,734 ±$166 in the United States.

Households by income

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Households in Marinette County by income, ACS 2020–2024
Household income	Households	Share	Wisconsin	United States
Under $25,000	2,759 ±279	14.5% ±1.4	13.1% ±0.2	14.6% ±<0.1
$25,000 to $49,999	4,298 ±392	22.6% ±2.0	17.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	4,020 ±372	21.1% ±1.9	17.5% ±0.2	15.5% ±<0.1
$75,000 to $99,999	2,904 ±299	15.2% ±1.6	13.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	3,118 ±342	16.4% ±1.8	19.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	1,243 ±242	6.5% ±1.3	9.4% ±0.1	9.6% ±<0.1
$200,000 or more	709 ±162	3.7% ±0.8	9.2% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Marinette County by age, ACS 2020–2024
Age	Below poverty	Rate	Wisconsin	United States
All ages	4,007 ±430	9.8% ±1.0	10.6% ±0.1	12.5% ±0.1
Under 18	767 ±177	10.0% ±2.3	12.8% ±0.3	16.1% ±0.1
18 to 59	1,905 ±250	9.9% ±1.3	10.3% ±0.2	11.6% ±0.1
60 and over	1,335 ±199	9.4% ±1.4	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Marinette County, ACS 2020–2024
Measure	Marinette County	Wisconsin	United States
Housing units	29,484 ±62	2,778,572 ±1,533	143,775,355 ±10,234
Occupied	64.6% ±1.0	89.2% ±0.2	89.9% ±0.1
Vacant	35.4% ±1.0	10.8% ±0.2	10.1% ±0.1
Owner occupied	81.6% ±1.5	67.8% ±0.3	65.2% ±0.3
Renter occupied	18.4% ±1.8	32.2% ±0.2	34.8% ±0.1
Median home value	$158,600 ±$4,146	$266,500 ±$1,051	$332,700 ±$236
Median gross rent	$795 ±$28	$1,087 ±$4	$1,413 ±$2
Median year built	1975 ±1	1975 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Marinette County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wisconsin	United States
Hispanic or Latino	1,233 ±0	2.9% ±<0.1	8.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	39,286 ±66	93.4% ±0.2	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	194 ±78	0.5% ±0.2	5.9% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	147 ±51	0.3% ±0.1	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	50 ±24	0.1% ±0.1	0.5% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 7	0% to < 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	7 to 43	< 0.1% to 0.1%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,109 ±114	2.6% ±0.3	3.7% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Marinette County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wisconsin	United States
Born in the state	28,258 ±560	67.2% ±1.3	70.3% ±0.1	57.3% ±<0.1
Born in another state	12,756 ±574	30.3% ±1.4	23.6% ±0.1	26.9% ±<0.1
Born a citizen outside the states	296 ±114	0.7% ±0.3	0.9% ±<0.1	1.7% ±<0.1
Born abroad	736 ±134	1.8% ±0.3	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	323 ±82	0.8% ±0.2	2.5% ±0.1	7.4% ±<0.1
Not citizens	413 ±94	1.0% ±0.2	2.7% ±0.1	6.8% ±<0.1

Marinette County among the counties of Wisconsin

36th of 72 by population, July 2025. Every one is listed on the Wisconsin page.

Counties of Wisconsin near Marinette County in population, July 2025
County	July 2025	Change since 2020
Barron County	46,484	−0.5%
Dunn County	46,223	+1.7%
Polk County	45,803	+1.7%
Douglas County	43,990	−0.8%
Pierce County	43,519	+3.1%
Marinette County	42,574	+1.6%
Shawano County	41,560	+1.7%
Oconto County	40,195	+2.9%
Oneida County	38,131	+0.7%
Green County	37,227	+0.5%
Clark County	35,052	+1.2%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026