• county
  • FIPS 55045
  • Largest town: Monroe

Green County, Wisconsin

Green County had 37,183 residents in the Census Vintage 2024 estimate, on 584.0 square miles of land. It ranks 40th of 72 in Wisconsin by population and 50th by land area.

Population
37,183
#40 of 72 in Wisconsin · #1,256 in US
Area
584.0 sq mi
#50 of 72 in Wisconsin · #1,684 in US
Density
64 / sq mi
#30 of 72 in Wisconsin · #1,258 in US
Median household income
$78,114
#12 of 72 in Wisconsin · #539 in US

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

Green County within Wisconsin. Pin: Madison.

Measure from here

Tools and pages that start from Green County

Green County population, land area and income

Green County had 37,183 residents in the Census Vintage 2024 estimate, on 584.0 square miles of land. It ranks 40th of 72 in Wisconsin by population and 50th by land area. That works out to 63.7 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; Green County is somewhat smaller.

Its SAIPE 2023 median household income of $78,114 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

37,183

3144th1st

1256th of 3,144 (US)

Land area

584 sq mi

3144th1st

1684th of 3,144 (US)

Density

63.7 / sq mi

3144th1st

1258th of 3,144 (US)

Median household income

$78,114

3143rd1st

539th of 3,143 (US)

Rank within Wisconsin (72)

Population

37,183

72nd1st

40th of 72 (WI)

Land area

584 sq mi

72nd1st

50th of 72 (WI)

Density

63.7 / sq mi

72nd1st

30th of 72 (WI)

Median household income

$78,114

72nd1st

12th of 72 (WI)

How Green County's population changed since 2020

Green County gained 150 residents between the July 2020 and July 2024 estimates, a rise of 0.4%. That ranks 48th 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 County recorded 1,464 births and 1,627 deaths, a natural change of -163. Net international migration added +116 and net domestic migration, people moving to or from other US counties, came to +137. The largest single component was natural change, which removed 163 people.

37.0k202037.1k202136.9k202236.9k202337.2k2024
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
1,464
Deaths
1,627
Net international migration
+116
Net domestic migration
+137
Change, July 2023 to July 2024
+249

Where Green County is

The Census internal point of Green County is at 42.675500, -89.605100. 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 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 County internal point. Dark pin: Madison.

Internal point

Decimal
42.675500, -89.605100
DMS
42°40'31.80"N 89°36'18.36"W
UTM
16N 286542.5E 4728071.2N
Geohash
dp86bbzdc
Plus code
86JGM9GV+6X

Towns in Green County

7 incorporated places of 1,000+ people have residents in Green County, 19,334 people together, or 52% of the county. Each figure counts only the part of the town inside Green County; towns marked "part" extend into another county. The largest is Monroe with 10,579.

  1. 01Monroe10,579
  2. 02Brodhead (part)3,142
  3. 03New Glarus2,277
  4. 04Monticello1,179
  5. 05Albany1,094
  6. 06Belleville (part)571
  7. 07Brooklyn (part)492
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Green County

The Census 2024 county adjacency file lists 6 neighbors for Green County, including 2 across a state line. The most populous is Dane County, WI, with 588,347 residents. Distances run between Census internal points in a straight line.

Distance to Madison and the nearest big city

Madison is 29.8 miles NNE of Green County's internal point in a straight line. The nearest place of 100,000 or more is Madison, WI (population 285,300), 29.8 miles away. The nearest place of 10,000 or more is Monroe, WI (population 10,579), 5.3 miles away.

Green County FIPS code

The FIPS code of Green County is 55045: state code 55 for Wisconsin plus county code 045. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $78,114.

Questions people ask

What is the population of Green County, Wisconsin?

The Census Vintage 2024 estimate for July 1, 2024 is 37,183. That is up 150 people (0.4%) from the July 2020 estimate of 37,033.

What is the FIPS code of Green County?

55045. The first two digits (55) are Wisconsin; the last three (045) identify the county.

What is the largest town in Green County?

Monroe, with 10,579 residents inside Green County in 2024.

Which counties border Green County?

6 county-equivalents border it in the Census 2024 adjacency file: Dane County, WI; Winnebago County, IL; Rock County, WI; Stephenson County, IL; Iowa County, WI; Lafayette 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.