Green Lake County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 55th-largest in Wisconsin
The population of Green Lake County, Wisconsin is 19,165 as of the 2023 American Community Survey, making it the 55th-largest county in Wisconsin. The median household income is $66,917, the median home value is $206,300, and the median age is 45.5.
The population of Green Lake County has grown 1.9% since 2010 (19,016 → 19,370), a +0.13% annualized rate.
19,165
Population
+0.13%
Annual growth
55
People / sq mi
$66,917
Median Income
$206,300
Median Home Value
Green Lake County covers 350 sq mi of land at 54.8 people per square mile.
About Green Lake County, WI
Green Lake County skews on age — the median resident is 45.5, older than the national median. Green Lake County is a county in Wisconsin with a population of 19,165.
The typical household here earns about $66,917, below the US median of $78,538. The poverty rate is 8.5%, below the national 12.4%. The typical home is valued at $206,300, with typical rent around $806.
Roughly 22.5% of adults have a bachelor’s, below the national 35.0%. Remote work is on the higher side at 10.9%, below the national 14.0%, and the average commute runs about 25 minutes each way.
The age structure shapes everything downstream in Green Lake County — from housing demand to the mix of working-age earners reflected in the income figures above.
Green Lake County Population History (2010-2024)
The county of Green Lake County had a population of 19,016 in 2010 and 19,370 in 2024, a 1.9% growth over 14 years. The peak was 19,417 in 2023. Average annual growth rate: 0.13%.
19,370
Population (2024)
19,016
Population (2010)
19,417
Peak (2023)
0.13%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 19,016 |
| 2011 | 19,055 |
| 2012 | 19,000 |
| 2013 | 18,885 |
| 2014 | 18,757 |
| 2015 | 18,703 |
| 2016 | 18,616 |
| 2017 | 18,731 |
| 2018 | 18,869 |
| 2019 | 18,910 |
| 2020 | 19,027 |
| 2021 | 19,262 |
| 2022 | 19,241 |
| 2023 | 19,417 |
| 2024 | 19,370 |
Race & Ethnicity
| White | 93.2% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.2% |
Age & Sex
45.5
Median Age
50.0%
Female
50.0%
Male
22.9%
Age 65+
Age Distribution
Children (under 15): 17.6% · Seniors (65+): 22.9%
Income & Poverty
| Median household income | $66,917$-8,753 vs state |
| Mean household income | $87,958 |
| Per-capita income | $37,510 |
| Poverty rate | 8.5%+1.9% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 56.2% |
Top Industries by Employment
The largest employment sector in Green Lake County is manufacturing, accounting for 23.9% of workers.
How residents commute
0.5%
Drive alone
3.7%
Carpool
76.3%
Public transit
10.9%
Work from home
24.5 min
Avg commute
Housing
$206,300$-41,100 vs state
Median home value
$806
Median rent
75.0%
Homeownership rate
10,731
Total housing units
75.9%
Occupied
24.1%
Vacant
25.0%
Renter-occupied
Social & access
91.0%
With health insurance
90.4%
With broadband internet
19.6%
Foreign-born
7.7%
Veterans (18+)
15.6%
With a disability
92.2%
Speak language other than English at home
Education
91.5%
High School+
22.5%
Bachelor's+
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Frequently Asked Questions
Green Lake County, Wisconsin has a population of 19,165 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 55th-largest county in Wisconsin. Population density is 55 people per square mile.
The population of Green Lake County has grown 1.9% since 2010 (19,016 → 19,370), a +0.13% annualized rate.
The median household income in Green Lake County, Wisconsin is $66,917, with mean (average) household income of $87,958 and per-capita income of $37,510. 8.5% of residents live below the federal poverty level.
In Green Lake County, the largest racial and ethnic groups are White (93.2%), Hispanic or Latino (1.2%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Green Lake County, Wisconsin is 45.5 years. Residents are 50.0% female and 50.0% male.
The median home value in Green Lake County is $206,300 and median monthly rent is $806. 75.0% of occupied housing units are owner-occupied. The county has 10,731 total housing units, 24.1% of which are vacant.
The largest employment sector in Green Lake County, Wisconsin is manufacturing, employing 23.9% of workers. The unemployment rate is 1.8%.
Milwaukee is among the largest cities associated with Green Lake 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.