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Columbia County, Wisconsin

Columbia County, Wisconsin
Map of Wisconsin highlighting Columbia County
Location in the state of Wisconsin
Map of the United States highlighting Wisconsin
Wisconsin's location in the U.S.
Founded 1846
Seat Portage
Largest city Portage
 • Total 796 sq mi (2,062 km2)
 • Land 766 sq mi (1,984 km2)
 • Water 30 sq mi (78 km2), 3.8%
 • (2010) 56,833
 • Density 74/sq mi (29/km²)
Congressional district 6th
Time zone Central: UTC-6/-5
Website .us.wi.columbia.cowww

Columbia County is a county located in the U.S. state of Wisconsin. As of the 2010 census, the population was 56,833.[1] Its county seat and largest city is Portage.[2] The county was created in 1846.[3]

Columbia County is part of the Madison, WI Metropolitan Statistical Area as well as the Madison-Janesville-Beloit, WI Combined Statistical Area.

Columbia County courthouse


  • Geography 1
    • Major highways 1.1
    • Adjacent counties 1.2
  • Demographics 2
  • Communities 3
    • Cities 3.1
    • Villages 3.2
    • Towns 3.3
    • Census-designated places 3.4
    • Unincorporated communities 3.5
    • Ghost town 3.6
  • See also 4
  • References 5
  • External links 6


According to the U.S. Census Bureau, the county has a total area of 796 square miles (2,060 km2), of which 766 square miles (1,980 km2) is land and 30 square miles (78 km2) (3.8%) is water.[4] The county's highest point is Gibraltar Rock at 1,247 feet above sea level. The high butte-shaped bluff is located north of Lodi overlooking the Lake Wisconsin River valley.

Major highways

Adjacent counties


2000 Census Age Pyramid for Columbia County
Columbia County Law Enforcement Center

As of the census[10] of 2000, there were 52,468 people, 20,439 households, and 14,164 families residing in the county. The population density was 68 people per square mile (26/km²). There were 22,685 housing units at an average density of 29 per square mile (11/km²). The racial makeup of the county was 97.18% White, 0.88% Black or African American, 0.35% Native American, 0.33% Asian, 0.02% Pacific Islander, 0.44% from other races, and 0.79% from two or more races. 1.58% of the population were Hispanic or Latino of any race. 46.4% were of German, 10.2% Norwegian, 7.8% Irish, 6.4% English and 5.0% United States or American ancestry.

There were 20,439 households out of which 32.20% had children under the age of 18 living with them, 58.10% were married couples living together, 7.40% had a female householder with no husband present, and 30.70% were non-families. 25.50% of all households were made up of individuals and 11.00% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 2.99.

In the county, the population was spread out with 25.20% under the age of 18, 7.10% from 18 to 24, 29.90% from 25 to 44, 23.40% from 45 to 64, and 14.40% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 101.60 males. For every 100 females age 18 and over, there were 100.40 males.





Census-designated places

Unincorporated communities

Ghost town

See also


  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved January 18, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Wisconsin: Individual County Chronologies". Wisconsin Atlas of Historical County Boundaries.  
  4. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved August 2, 2015. 
  5. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  6. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved August 2, 2015. 
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved August 2, 2015. 
  8. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved August 2, 2015. 
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved August 2, 2015. 
  10. ^ "American FactFinder".  

External links

  • Columbia County government website
  • History of Columbia County, Wisconsin
  • Memorial and Biographical Record and Illustrated Compendium of Biography ... of Columbia, Sauk and Adams counties, Wisconsin...

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