Green Lake County's estimated 2026 population is 19,276 with a growth rate of -0.24% in the past year according to the most recent United States census data. Green Lake County is the 55th largest county in Wisconsin. The 2010 population was 19,016 and has seen a growth of 1.37% since that time.
Data after 2023 is projected based on recent change
The racial composition of Green Lake County includes 93.19% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (93.19%)
Two or more races (3.46%)
Other race (1.5%)
Black or African American (0.78%)
Asian (0.53%)
Native American (0.38%)
Native Hawaiian or Pacific Islander (0.16%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 17,859 | 93.19% |
| Two or more races | 664 | 3.46% |
| Other race | 287 | 1.5% |
| Black or African American | 150 | 0.78% |
| Asian | 101 | 0.53% |
| Native American | 73 | 0.38% |
| Native Hawaiian or Pacific Islander | 31 | 0.16% |
Married
Widowed
Divorced
Separated
Never Married
Green Lake County's average per capita income is $46,958. Household income levels show a median of $66,917. The poverty rate stands at 13.25%.
Name | Median | Mean |
|---|---|---|
| Married Families | $96,530 | - |
| Families | $84,651 | $104,552 |
| Households | $66,917 | $87,958 |
| Non Families | $42,445 | $54,258 |
Average Income
Median Household Income
Poverty Rate