Green County (Wisconsin)

Green County is a county located in the U.S. state of Wisconsin. In 2010, the County had 36 842 inhabitants and a population density of 24.4 inhabitants per square kilometer. The administrative headquarters ( County Seat) is Monroe.


The County is located in the extreme south of Wisconsin, adjacent to Illinois and has an area of ​​1514 square kilometers, of which 2 square kilometers is water area.

It is traversed in a north-south direction on the east by Sugar River and southwest of the Pecatonica River, both of which belong on the Rock River to the basin of the Mississippi.

At the Green County borders the following Nachbarcountys:


The Green County was formed in 1836 as an original county from parts of the Wisconsin Territory. It was named after Nathanael Greene (1742-1786), a general in the American Revolutionary War.

Demographic data

According to the census in 2010 lived in Green County 36 842 people in 14,527 households. The population density was 24.4 inhabitants per square kilometer. In the 14,527 households lived statistically 2.49 per person.

The racial the population was composed of 97.8 percent white, 0.5 percent African American, 0.2 percent Native American, 0.6 percent Asian and other ethnic groups; 0.9 percent were descended from two or more races. Regardless of ethnicity were 2.8 percent of the population are Hispanic or Latino of any race.

23.5 percent of the population were under 18 years old, 60.5 percent were between 18 and 64 and 16.0 percent were 65 years or older. 50.4 percent of the population was female.

The median income for a household was $ 53,933. The per capita income was $ 26,852. 9.7 percent of the population lived below the poverty line.

Places in Green County


  • Brodhead1
  • Monroe


  • Albany
  • Belleville2
  • Brooklyn3
  • Brownstown
  • Monticello
  • New Glarus

Census-designated place (CDP )

  • Judah

Other Unincorporated communities

  • Attica
  • Clarno
  • Dayton
  • Exeter
  • Martinstown
  • Mineral Point
  • Oakley
  • Postville
  • Ross Crossing
  • Schneyville
  • Schulz
  • Stearns
  • Twin Grove

1 - partially in Rock County 2 - predominantly in Dane County 3 - partially in Dane County


The Green County is divided into 16 Towns in addition to the City's two and six Villages: