Demographics of Green Lake County, Wisconsin

Green Lake County, Wisconsin had 19,305 people on July 1, 2025, by the Census Bureau’s estimate: +289 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.

Green Lake County, in four figures

19,305
Population: July 1, 2025, Vintage 2025 estimate.; +1.5%
Change since July 2020: +289 people.; 45.6 ±0.4
Median age: ACS 2020–⁠2024.; $68,196 ±$3,762
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.

Green Lake County, Wisconsin's population grew 1.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Green Lake 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).

Source: The Census Bureau

About this chart

The figures

Green Lake County, Wisconsin's population grew 1.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Green Lake 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	19,016	100.0	100.0
2021	19,251	101.2	100.2
2022	19,224	101.1	100.7
2023	19,406	102.1	101.6
2024	19,332	101.7	102.5
2025	19,305	101.5	103.1

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Population of Green Lake 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	19,016	+3	−14	0	+12
2021	19,251	+235	−77	+2	+316
2022	19,224	−27	−84	+20	+49
2023	19,406	+182	−48	+20	+214
2024	19,332	−74	−64	+7	−14
2025	19,305	−27	−69	+1	+41

Age, 2020–2024

The median age is 45.6 ±0.4: for men 44.8 ±0.4 and for women 46.5 ±0.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Green Lake County by age, ACS 2020–2024
Age	People	Share	Wisconsin	United States
Under 5	1,033 ±58	5.4% ±0.3	5.3% ±<0.1	5.6% ±<0.1
5 to 17	3,142 ±169	16.3% ±0.9	16.0% ±0.1	16.3% ±<0.1
18 to 24	1,409 ±132	7.3% ±0.7	9.3% ±0.1	9.1% ±<0.1
25 to 44	3,917 ±161	20.3% ±0.8	25.2% ±0.1	26.9% ±<0.1
45 to 64	5,235 ±192	27.2% ±1.0	25.6% ±0.1	24.8% ±<0.1
65 and over	4,527 ±224	23.5% ±1.2	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $68,196 ±$3,762, and income per person $39,565 ±$1,959, 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 Green Lake County by income, ACS 2020–2024
Household income	Households	Share	Wisconsin	United States
Under $25,000	1,274 ±191	15.4% ±2.3	13.1% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,613 ±181	19.5% ±2.1	17.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,525 ±195	18.4% ±2.3	17.5% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,136 ±148	13.7% ±1.8	13.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,617 ±181	19.5% ±2.1	19.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	620 ±99	7.5% ±1.2	9.4% ±0.1	9.6% ±<0.1
$200,000 or more	500 ±92	6.0% ±1.1	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 Green Lake County by age, ACS 2020–2024
Age	Below poverty	Rate	Wisconsin	United States
All ages	2,612 ±412	13.8% ±2.2	10.6% ±0.1	12.5% ±0.1
Under 18	816 ±155	20.0% ±3.6	12.8% ±0.3	16.1% ±0.1
18 to 59	1,108 ±195	12.7% ±2.2	10.3% ±0.2	11.6% ±0.1
60 and over	688 ±117	11.1% ±1.9	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Green Lake County, ACS 2020–2024
Measure	Green Lake County	Wisconsin	United States
Housing units	10,772 ±40	2,778,572 ±1,533	143,775,355 ±10,234
Occupied	76.9% ±1.8	89.2% ±0.2	89.9% ±0.1
Vacant	23.1% ±1.8	10.8% ±0.2	10.1% ±0.1
Owner occupied	74.5% ±1.7	67.8% ±0.3	65.2% ±0.3
Renter occupied	25.5% ±2.3	32.2% ±0.2	34.8% ±0.1
Median home value	$215,400 ±$9,379	$266,500 ±$1,051	$332,700 ±$236
Median gross rent	$818 ±$70	$1,087 ±$4	$1,413 ±$2
Median year built	1971 ±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 Green Lake County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wisconsin	United States
Hispanic or Latino	1,079 ±0	5.6% ±<0.1	8.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	17,439 ±43	90.5% ±0.2	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	90 ±34	0.5% ±0.2	5.9% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	219 ±81	1.1% ±0.4	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	65 ±26	0.3% ±0.1	0.5% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 39	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	20 to 74	0.1% to 0.4%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	310 ±78	1.6% ±0.4	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 Green Lake County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wisconsin	United States
Born in the state	15,065 ±333	78.2% ±1.7	70.3% ±0.1	57.3% ±<0.1
Born in another state	3,757 ±327	19.5% ±1.7	23.6% ±0.1	26.9% ±<0.1
Born a citizen outside the states	29 to 113	0.2% to 0.6%	0.9% ±<0.1	1.7% ±<0.1
Born abroad	370 ±94	1.9% ±0.5	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	216 ±70	1.1% ±0.4	2.5% ±0.1	7.4% ±<0.1
Not citizens	154 ±60	0.8% ±0.3	2.7% ±0.1	6.8% ±<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%.

Green Lake County among the counties of Wisconsin

55th of 72 by population, July 2025. Every one is listed on the Wisconsin page.

Counties of Wisconsin near Green Lake County in population, July 2025
County	July 2025	Change since 2020
Adams County	21,752	+5.1%
Jackson County	20,999	−0.5%
Kewaunee County	20,758	+1.0%
Taylor County	20,118	+0.9%
Langlade County	19,534	+0.4%
Green Lake County	19,305	+1.5%
Sawyer County	18,846	+4.0%
Lafayette County	17,478	+5.2%
Burnett County	17,223	+3.9%
Washburn County	17,087	+2.8%
Richland County	17,036	−1.4%

Elsewhere on the site

Rankings this appears in

No. 2 Counties in Wisconsin by poverty rate
No. 14 Counties in Wisconsin by per capita income
No. 20 Counties in Wisconsin by Hispanic or Latino share
No. 23 Counties in Wisconsin by median age
No. 27 Counties in Wisconsin by foreign-born share
No. 28 Counties in Wisconsin by homeownership rate

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

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026