Marinette County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 36th-largest in Wisconsin
The population of Marinette County, Wisconsin is 41,907 as of the 2023 American Community Survey, making it the 36th-largest county in Wisconsin. The median household income is $63,401, the median home value is $154,600, and the median age is 48.8.
The population of Marinette County has grown 1.6% since 2010 (41,662 → 42,343), a +0.12% annualized rate.
41,907
Population
+0.12%
Annual growth
30
People / sq mi
$63,401
Median Income
$154,600
Median Home Value
Marinette County covers 1,399 sq mi of land at 29.9 people per square mile.
About Marinette County, WI
Marinette County is a county in Wisconsin with a population of 41,907. It ranks #36 among counties in Wisconsin by population. The median age is 48.8, older than the national median. The population is 50.7% male and 49.3% female.
The median household income in Marinette County is $63,401, below the US median of $74,580. 6.3% of residents live below the federal poverty level. Home values sit at a median of $154,600, with monthly rent averaging $749. The homeownership rate of 80.4% is higher than the national rate of 64.8%.
Educational attainment in Marinette County reflects 19.5% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.7% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 20.9 minutes each way.
Marinette County Population History (2010-2024)
The county of Marinette County had a population of 41,662 in 2010 and 42,343 in 2024, a 1.6% growth over 14 years. The peak was 42,343 in 2024. Average annual growth rate: 0.12%.
42,343
Population (2024)
41,662
Population (2010)
42,343
Peak (2024)
0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,662 |
| 2011 | 41,419 |
| 2012 | 41,360 |
| 2013 | 41,306 |
| 2014 | 41,072 |
| 2015 | 40,676 |
| 2016 | 40,298 |
| 2017 | 40,341 |
| 2018 | 40,401 |
| 2019 | 40,256 |
| 2020 | 41,900 |
| 2021 | 41,875 |
| 2022 | 42,000 |
| 2023 | 42,113 |
| 2024 | 42,343 |
Race & Ethnicity
| White | 94.7% |
| Black or African American | 0.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
48.8
Median Age
49.3%
Female
50.7%
Male
24.6%
Age 65+
Age Distribution
Children (under 15): 15.2% · Seniors (65+): 24.6%
Income & Poverty
| Median household income | $63,401$-12,269 vs state |
| Mean household income | $80,117 |
| Per-capita income | $36,123 |
| Poverty rate | 6.3%-0.3% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 55.3% |
Top Industries by Employment
The largest employment sector in Marinette County is manufacturing, accounting for 27.9% of workers.
How residents commute
0.2%
Drive alone
2.7%
Carpool
81.0%
Public transit
6.7%
Work from home
20.9 min
Avg commute
Housing
$154,600$-92,800 vs state
Median home value
$749
Median rent
80.4%
Homeownership rate
29,372
Total housing units
63.5%
Occupied
36.5%
Vacant
19.6%
Renter-occupied
Social & access
95.7%
With health insurance
91.6%
With broadband internet
31.4%
Foreign-born
9.7%
Veterans (18+)
15.3%
With a disability
96.9%
Speak language other than English at home
Education
93.1%
High School+
19.5%
Bachelor's+
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County rankings
Frequently Asked Questions
Marinette County, Wisconsin has a population of 41,907 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 36th-largest county in Wisconsin. Population density is 30 people per square mile.
The population of Marinette County has grown 1.6% since 2010 (41,662 → 42,343), a +0.12% annualized rate.
The median household income in Marinette County, Wisconsin is $63,401, with mean (average) household income of $80,117 and per-capita income of $36,123. 6.3% of residents live below the federal poverty level.
In Marinette County, the largest racial and ethnic groups are White (94.7%), Hispanic or Latino (1.4%), Black or African American (0.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marinette County, Wisconsin is 48.8 years. Residents are 49.3% female and 50.7% male.
The median home value in Marinette County is $154,600 and median monthly rent is $749. 80.4% of occupied housing units are owner-occupied. The county has 29,372 total housing units, 36.5% of which are vacant.
The largest employment sector in Marinette County, Wisconsin is manufacturing, employing 27.9% of workers. The unemployment rate is 2.2%.
Milwaukee is among the largest cities associated with Marinette County, Wisconsin, with a population of 569,756.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.