Demographics of Oconto County, Wisconsin

Oconto County, Wisconsin had 40,195 people on July 1, 2025, by the Census Bureau’s estimate: +1,118 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.

Oconto County, in four figures

40,195
Population: July 1, 2025, Vintage 2025 estimate.; +2.9%
Change since July 2020: +1,118 people.; 47.5 ±0.3
Median age: ACS 2020–⁠2024.; $75,049 ±$2,860
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.

Oconto County, Wisconsin's population grew 2.9% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Oconto 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

Oconto County, Wisconsin's population grew 2.9% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Oconto 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	39,077	100.0	100.0
2021	39,417	100.9	100.2
2022	39,639	101.4	100.7
2023	39,745	101.7	101.6
2024	40,006	102.4	102.5
2025	40,195	102.9	103.1

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Population of Oconto 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	39,077	+110	+7	0	+108
2021	39,417	+340	−104	0	+437
2022	39,639	+222	−151	+7	+373
2023	39,745	+106	−53	+17	+148
2024	40,006	+261	−104	+31	+338
2025	40,195	+189	−116	+8	+300

Age, 2020–2024

The median age is 47.5 ±0.3: for men 47.2 ±0.4 and for women 47.7 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Oconto County by age, ACS 2020–2024
Age	People	Share	Wisconsin	United States
Under 5	1,914 ±84	4.8% ±0.2	5.3% ±<0.1	5.6% ±<0.1
5 to 17	5,875 ±254	14.8% ±0.6	16.0% ±0.1	16.3% ±<0.1
18 to 24	2,350 ±177	5.9% ±0.4	9.3% ±0.1	9.1% ±<0.1
25 to 44	8,562 ±269	21.6% ±0.7	25.2% ±0.1	26.9% ±<0.1
45 to 64	11,913 ±318	30.1% ±0.8	25.6% ±0.1	24.8% ±<0.1
65 and over	8,975 ±363	22.7% ±0.9	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $75,049 ±$2,860, and income per person $40,358 ±$1,183, 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 Oconto County by income, ACS 2020–2024
Household income	Households	Share	Wisconsin	United States
Under $25,000	2,005 ±209	11.9% ±1.2	13.1% ±0.2	14.6% ±<0.1
$25,000 to $49,999	3,336 ±294	19.8% ±1.7	17.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	3,059 ±262	18.2% ±1.5	17.5% ±0.2	15.5% ±<0.1
$75,000 to $99,999	2,277 ±232	13.5% ±1.4	13.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	3,484 ±285	20.7% ±1.7	19.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	1,502 ±211	8.9% ±1.2	9.4% ±0.1	9.6% ±<0.1
$200,000 or more	1,148 ±156	6.8% ±0.9	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 Oconto County by age, ACS 2020–2024
Age	Below poverty	Rate	Wisconsin	United States
All ages	3,197 ±367	8.2% ±0.9	10.6% ±0.1	12.5% ±0.1
Under 18	632 ±146	8.4% ±1.9	12.8% ±0.3	16.1% ±0.1
18 to 59	1,355 ±207	7.1% ±1.1	10.3% ±0.2	11.6% ±0.1
60 and over	1,210 ±193	9.7% ±1.5	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Oconto County, ACS 2020–2024
Measure	Oconto County	Wisconsin	United States
Housing units	24,072 ±47	2,778,572 ±1,533	143,775,355 ±10,234
Occupied	69.8% ±0.9	89.2% ±0.2	89.9% ±0.1
Vacant	30.2% ±0.9	10.8% ±0.2	10.1% ±0.1
Owner occupied	85.0% ±1.4	67.8% ±0.3	65.2% ±0.3
Renter occupied	15.0% ±1.6	32.2% ±0.2	34.8% ±0.1
Median home value	$231,400 ±$7,144	$266,500 ±$1,051	$332,700 ±$236
Median gross rent	$791 ±$30	$1,087 ±$4	$1,413 ±$2
Median year built	1981 ±2	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 Oconto County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wisconsin	United States
Hispanic or Latino	903 ±0	2.3% ±<0.1	8.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	36,922 ±82	93.3% ±0.2	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	20 to 82	0.1% to 0.2%	5.9% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	45 to 145	0.1% to 0.4%	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	400 ±80	1.0% ±0.2	0.5% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 21	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	20 to 98	0.1% to 0.2%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,159 ±110	2.9% ±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 Oconto County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wisconsin	United States
Born in the state	33,245 ±416	84.0% ±1.1	70.3% ±0.1	57.3% ±<0.1
Born in another state	5,732 ±412	14.5% ±1.0	23.6% ±0.1	26.9% ±<0.1
Born a citizen outside the states	171 ±75	0.4% ±0.2	0.9% ±<0.1	1.7% ±<0.1
Born abroad	441 ±103	1.1% ±0.3	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	273 ±80	0.7% ±0.2	2.5% ±0.1	7.4% ±<0.1
Not citizens	168 ±73	0.4% ±0.2	2.7% ±0.1	6.8% ±<0.1

Oconto County among the counties of Wisconsin

38th of 72 by population, July 2025. Every one is listed on the Wisconsin page.

Counties of Wisconsin near Oconto County in population, July 2025
County	July 2025	Change since 2020
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%
Vernon County	31,443	+2.4%
Trempealeau County	31,171	+1.1%

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