Columbia County (Wisconsin)

The Columbia County is a county located in the U.S. state of Wisconsin. In 2010, the County had 56 833 inhabitants and a population density of 28.4 inhabitants per square kilometer. The administrative headquarters ( County Seat) is Portage.

The Columbia County is part of the metropolitan area of ​​Madison.


The County is located in south-central Wisconsin and has an area of ​​2061 square kilometers, of which 57 square kilometers are water surface.

To the west the county is drained by the Wisconsin River, a left tributary of the Mississippi. In the north of the county of which opens into Lake Michigan Fox River rises.

The watershed between the two rivers was formerly bridges near the city of Portage through the Portage Canal. Through a series of dams and locks on both sides of the watershed of the Fox - Wisconsin Waterway formed until the first half of the 20th century a waterway from the Mississippi River to the Great Lakes.

At the Columbia County borders the following Nachbarcountys:


The Columbia County was formed in 1846 from portions of Portage County. It was named after Christopher Columbus.


According to the census in 2010 lived in Columbia County 56 833 people in 22,888 households. The population density was 28.4 inhabitants per square kilometer. In the 22,888 households lived statistically 2.4 persons each.

The racial the population was composed of 96.3 percent white, 1.4 percent African American, 0.6 percent Native American, 0.6 percent Asian, 0.1 percent Polynesians as well as other ethnic groups; 1.0 percent were descended from two or more races. Regardless of ethnicity were 2.6 percent of the population are Hispanic or Latino of any race.

22.7 percent of the population were under 18 years old, 62.0 percent were between 18 and 64 and 15.3 percent were 65 years or older. 49.1 percent of the population was female.

The median income for a household was $ 57,805. The per capita income was $ 28,160. 8.7 percent of the population lived below the poverty line.

Villages in Columbia County


  • Columbus2
  • Lodi
  • Portage
  • Wisconsin Dells3


  • Arlington
  • Cambria
  • Doylestown
  • Fall River
  • Friesland
  • Pardeeville
  • Poynette
  • Randolph2
  • Rio
  • Wyocena

Census-designated place (CDP )

  • Lake Wisconsin2

Other Unincorporated communities

  • Anacker
  • Belle Fountain
  • Dekorra
  • Durwards Glen
  • East Friesland
  • Englewood
  • Harmony Grove
  • Ingle
  • Keyeser
  • Leeds
  • Leeds Centre
  • Lewiston
  • Lowville
  • Marcellon
  • North Leeds
  • Okee
  • Otsego

1 - partially in Sauk County 2 - partially in Dodge County 3 - partly in Adams, Juneau and Sauk County in


The Columbia County is divided into 21 Towns in addition to the City's four and ten Villages: