• county
  • FIPS 55047
  • Largest town: Berlin

Green Lake County, Wisconsin

Green Lake County had 19,370 residents in the Census Vintage 2024 estimate, on 349.5 square miles of land. It ranks 55th of 72 in Wisconsin by population and 65th by land area.

Population
19,370
#55 of 72 in Wisconsin · #1,866 in US
Area
349.5 sq mi
#65 of 72 in Wisconsin · #2,682 in US
Density
55 / sq mi
#33 of 72 in Wisconsin · #1,375 in US
Median household income
$64,516
#52 of 72 in Wisconsin · #1,411 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Green Lake County within Wisconsin. Pin: Madison.

Measure from here

Tools and pages that start from Green Lake County

Green Lake County population, land area and income

Green Lake County had 19,370 residents in the Census Vintage 2024 estimate, on 349.5 square miles of land. It ranks 55th of 72 in Wisconsin by population and 65th by land area. That works out to 55.4 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Wisconsin has 41,821 residents, so Green Lake County has 46% of the typical county's population.

Its SAIPE 2023 median household income of $64,516 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

19,370

3144th1st

1866th of 3,144 (US)

Land area

350 sq mi

3144th1st

2682nd of 3,144 (US)

Density

55.4 / sq mi

3144th1st

1375th of 3,144 (US)

Median household income

$64,516

3143rd1st

1411th of 3,143 (US)

Rank within Wisconsin (72)

Population

19,370

72nd1st

55th of 72 (WI)

Land area

350 sq mi

72nd1st

65th of 72 (WI)

Density

55.4 / sq mi

72nd1st

33rd of 72 (WI)

Median household income

$64,516

72nd1st

52nd of 72 (WI)

How Green Lake County's population changed since 2020

Green Lake County gained 343 residents between the July 2020 and July 2024 estimates, a rise of 1.8%. That ranks 24th of 72 in Wisconsin for growth. The median Wisconsin county changed by +1.0%, and the state as a whole by +1.1%.

Since the April 2020 estimates base, Green Lake County recorded 848 births and 1,125 deaths, a natural change of -277. Net international migration added +56 and net domestic migration, people moving to or from other US counties, came to +584. The largest single component was domestic migration, which added 584 people.

19.0k202019.3k202119.2k202219.4k202319.4k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
848
Deaths
1,125
Net international migration
+56
Net domestic migration
+584
Change, July 2023 to July 2024
-47

Where Green Lake County is

The Census internal point of Green Lake County is at 43.780200, -88.970400. It sits in UTM zone 16N. The map shades Wisconsin's 72 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Green Lake County outlined. Dots are towns of 1,000+ people with residents in it.

Barron County: +0.2%Green County: +0.4%Dunn County: +1.5%Jefferson County: +0.0%Lincoln County: +0.1%Rusk County: -0.1%Fond du Lac County: +0.1%Marquette County: +1.0%Outagamie County: +2.3%Waupaca County: -1.2%Oneida County: +0.8%Eau Claire County: +2.8%Washington County: +1.4%Portage County: +2.3%Menominee County: +0.7%Clark County: +0.5%Monroe County: +0.2%Milwaukee County: -1.5%Buffalo County: +1.1%Lafayette County: +4.2%Ozaukee County: +2.5%Rock County: +1.0%Sheboygan County: +0.2%Green Lake County: +1.8%Waukesha County: +2.3%Calumet County: +2.1%Dodge County: -0.8%Wood County: -0.3%Winnebago County: +0.9%Sawyer County: +4.0%Dane County: +4.6%Sauk County: +1.1%Pepin County: +2.9%Adams County: +3.2%Price County: +0.4%Taylor County: +1.1%Grant County: +0.7%Trempealeau County: -0.0%Vernon County: +2.1%Waushara County: +2.2%Iowa County: +1.0%Crawford County: -0.5%Kenosha County: -0.3%Shawano County: +1.1%Juneau County: -0.7%Jackson County: -0.3%Vilas County: +3.7%Bayfield County: +3.7%Chippewa County: +1.5%Iron County: +1.5%Racine County: +0.3%Door County: +1.3%Ashland County: +1.1%Kewaunee County: +0.9%Polk County: +1.8%Florence County: +2.4%Douglas County: -0.2%Forest County: +3.7%Columbia County: -0.7%Walworth County: +0.7%La Crosse County: +0.1%Manitowoc County: +0.1%Oconto County: +2.5%Langlade County: +0.4%Marathon County: +0.7%Washburn County: +2.2%Brown County: +1.8%Richland County: -0.9%Marinette County: +1.1%St. Croix County: +4.3%Pierce County: +2.7%Burnett County: +3.7%
Change 2020 to 2024
  1. < +0.1%
  2. < +0.7%
  3. < +1.3%
  4. < +2.3%
  5. ≥ +2.3%
no data

Orange pin: Green Lake County internal point. Dark pin: Madison.

Internal point

Decimal
43.780200, -88.970400
DMS
43°46'48.72"N 88°58'13.44"W
UTM
16N 341441.5E 4849347.4N
Geohash
dpb9p3vwp
Plus code
86MHQ2JH+3R

Towns in Green Lake County

4 incorporated places of 1,000+ people have residents in Green Lake County, 9,219 people together, or 48% of the county. Each figure counts only the part of the town inside Green Lake County; towns marked "part" extend into another county. The largest is Berlin with 5,521.

  1. 01Berlin (part)5,521
  2. 02Markesan1,385
  3. 03Princeton1,270
  4. 04Green Lake1,043
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Green Lake County

The Census 2024 county adjacency file lists 6 neighbors for Green Lake County. The most populous is Winnebago County, WI, with 173,307 residents. Distances run between Census internal points in a straight line.

Distance to Madison and the nearest big city

Madison is 53.0 miles SSW of Green Lake County's internal point in a straight line. The nearest place of 100,000 or more is Madison, WI (population 285,300), 53.1 miles away. The nearest place of 10,000 or more is Waupun, WI (population 11,131), 15.5 miles away.

Green Lake County FIPS code

The FIPS code of Green Lake County is 55047: state code 55 for Wisconsin plus county code 047. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $64,516.

Questions people ask

What is the population of Green Lake County, Wisconsin?

The Census Vintage 2024 estimate for July 1, 2024 is 19,370. That is up 343 people (1.8%) from the July 2020 estimate of 19,027.

What is the FIPS code of Green Lake County?

55047. The first two digits (55) are Wisconsin; the last three (047) identify the county.

What is the largest town in Green Lake County?

Berlin, with 5,521 residents inside Green Lake County in 2024 (5,607 across all 2 counties it spans).

Which counties border Green Lake County?

6 county-equivalents border it in the Census 2024 adjacency file: Winnebago County, WI; Fond du Lac County, WI; Dodge County, WI; Columbia County, WI; Waushara County, WI; Marquette County, WI.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.