Oconto County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 38th-largest in Wisconsin
The population of Oconto County, Wisconsin is 39,329 as of the 2023 American Community Survey, making it the 38th-largest county in Wisconsin. The median household income is $75,886, the median home value is $212,000, and the median age is 47.4.
The population of Oconto County has grown 6.2% since 2010 (37,714 → 40,037), a +0.43% annualized rate.
39,329
Population
+0.43%
Annual growth
39
People / sq mi
$75,886
Median Income
$212,000
Median Home Value
Oconto County covers 997 sq mi of land at 39.4 people per square mile.
About Oconto County, WI
Homeownership is the standout figure in Oconto County: 84.5% of homes are owner-occupied, higher than the national rate. Oconto County is a county in Wisconsin with a population of 39,329. It ranks #38 among counties in Wisconsin by population.
Median household income is $75,886, near the US median of $78,538. The poverty rate, 5.4%, is on the lower side for US counties and below the national 12.4%. Homes carry a median value of $212,000, with typical rent around $796.
Degree attainment is mid-range for US counties: 18.7% of adults hold a four-year degree, below the national 35.0%. About 10.7% of workers primarily work from home, below the national 14.0%, and the average commute runs about 28 minutes each way.
The ownership rate anchors the housing story in Oconto County, and tends to move with the age structure and home-value figures above.
Oconto County Population History (2010-2024)
The county of Oconto County had a population of 37,714 in 2010 and 40,037 in 2024, a 6.2% growth over 14 years. The peak was 40,037 in 2024. Average annual growth rate: 0.43%.
40,037
Population (2024)
37,714
Population (2010)
40,037
Peak (2024)
0.43%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 37,714 |
| 2011 | 37,571 |
| 2012 | 37,418 |
| 2013 | 37,364 |
| 2014 | 37,459 |
| 2015 | 37,474 |
| 2016 | 37,477 |
| 2017 | 37,530 |
| 2018 | 37,901 |
| 2019 | 38,057 |
| 2020 | 39,077 |
| 2021 | 39,429 |
| 2022 | 39,660 |
| 2023 | 39,741 |
| 2024 | 40,037 |
Race & Ethnicity
| White | 94.1% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.4% |
| Two or More Races | 0.0% |
Age & Sex
47.4
Median Age
48.5%
Female
51.5%
Male
22.0%
Age 65+
Age Distribution
Children (under 15): 16.1% · Seniors (65+): 22.0%
Income & Poverty
| Median household income | $75,886+$216 vs state |
| Mean household income | $90,916 |
| Per-capita income | $39,196 |
| Poverty rate | 5.4%-1.2% vs state |
| Unemployment rate | 1.3% |
| Employment-to-population | 59.8% |
Top Industries by Employment
The largest employment sector in Oconto County is manufacturing, accounting for 23.3% of workers.
How residents commute
0.1%
Drive alone
1.7%
Carpool
79.3%
Public transit
10.7%
Work from home
27.6 min
Avg commute
Housing
$212,000$-35,400 vs state
Median home value
$796
Median rent
84.5%
Homeownership rate
23,998
Total housing units
69.2%
Occupied
30.8%
Vacant
15.5%
Renter-occupied
Social & access
96.4%
With health insurance
92.6%
With broadband internet
14.0%
Foreign-born
8.1%
Veterans (18+)
14.4%
With a disability
98.3%
Speak language other than English at home
Education
93.1%
High School+
18.7%
Bachelor's+
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County rankings
Frequently Asked Questions
Oconto County, Wisconsin has a population of 39,329 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 38th-largest county in Wisconsin. Population density is 39 people per square mile.
The population of Oconto County has grown 6.2% since 2010 (37,714 → 40,037), a +0.43% annualized rate.
The median household income in Oconto County, Wisconsin is $75,886, with mean (average) household income of $90,916 and per-capita income of $39,196. 5.4% of residents live below the federal poverty level.
In Oconto County, the largest racial and ethnic groups are White (94.1%), Hispanic or Latino (3.4%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Oconto County, Wisconsin is 47.4 years. Residents are 48.5% female and 51.5% male.
The median home value in Oconto County is $212,000 and median monthly rent is $796. 84.5% of occupied housing units are owner-occupied. The county has 23,998 total housing units, 30.8% of which are vacant.
The largest employment sector in Oconto County, Wisconsin is manufacturing, employing 23.3% of workers. The unemployment rate is 1.3%.
Milwaukee is among the largest cities associated with Oconto County, Wisconsin, with a population of 569,756.
Oconto County, WI Climate
Oconto County, WI has an average annual temperature of 6.1°C (43°F) and receives about 794 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
6.1°C
Avg Temp
794
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -10° / 14° | 35 mm |
| February | -8° / 18° | 26 mm |
| March | -2° / 29° | 54 mm |
| April | 6° / 42° | 68 mm |
| May | 13° / 55° | 89 mm |
| June | 18° / 64° | 92 mm |
| July | 20° / 69° | 87 mm |
| August | 19° / 67° | 90 mm |
| September | 15° / 58° | 92 mm |
| October | 8° / 47° | 60 mm |
| November | 1° / 33° | 60 mm |
| December | -6° / 20° | 41 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Oconto County, WI
The most comfortable months to visit Oconto County, WI are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -16°C low). June is usually the wettest month.
Where to stay near Oconto County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.