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Washington County, Iowa

Washington County, Iowa
Washington County Courthouse
Map of Iowa highlighting Washington County
Location in the state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1838
Named for George Washington
Seat Washington
Largest city Washington
 • Total 571 sq mi (1,479 km2)
 • Land 569 sq mi (1,474 km2)
 • Water 2.1 sq mi (5 km2), 0.4%
 • (2010) 21,704
 • Density 38/sq mi (15/km²)
Congressional district 2nd
Time zone Central: UTC-6/-5
Website .us.ia.washingtonco

Washington County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 21,704.[1] The county seat is Washington.[2]

Washington County is included in the Iowa, IA Metropolitan Statistical Area.[3]


  • History 1
  • Geography 2
    • Major highways 2.1
    • Adjacent counties 2.2
  • Demographics 3
    • 2010 census 3.1
    • 2000 census 3.2
  • Education 4
  • Communities 5
    • Cities 5.1
    • Unincorporated communities 5.2
  • See also 6
  • References 7
  • External links 8


Washington County was originally formed on January 18, 1838 as Slaughter County in honor of [6]

The first religious society organized by Reverend J.L. Kirkpatrick, a Methodist reverend was created in 1839.[6] The first newspaper was established in 1853; lasting only two years before crumbling. The very next year another newspaper was created, which is still viable today.[7] The major waterways through Washington County are the Skunk and English Rivers and the Crooked Creek. Timber is found in abundance around these bodies of waters which helps in the major business of lumber.[6] Soon after the year 1855, a bank was started in the city of Washington and other institutions followed soon after. No major increase in population happened until the year 1858 when the Mississippi and Missouri Railroad was finished through Washington.[7]


According to the U.S. Census Bureau, the county has a total area of 571 square miles (1,480 km2), of which 569 square miles (1,470 km2) is land and 2.1 square miles (5.4 km2) (0.4%) is water.[8]

Major highways

Adjacent counties


2010 census

The 2010 census recorded a population of 21,704 in the county, with a population density of 38.1636/sq mi (14.7350/km2). There were 9,516 housing units, of which 8,741 were occupied.[14]

2000 census

2000 Census Age Pyramid for Washington County

As of the census[15] of 2000, there were 20,670 people, 8,056 households, and 5,631 families residing in the county. The population density was 36 inhabitants per square mile (14/km2). There were 8,543 housing units at an average density of 15 per square mile (5.8/km2). The racial makeup of the county was 97.04% White, 0.29% Black or African American, 0.19% Native American, 0.25% Asian, 0.03% Pacific Islander, 1.51% from other races, and 0.68% from two or more races. 2.73% of the population were Hispanic or Latino of any race.

There were 8,056 households out of which 31.40% had children under the age of 18 living with them, 60.30% were married couples living together, 6.70% had a female householder with no husband present, and 30.10% were non-families. 26.40% of all households were made up of individuals and 12.50% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.04.

In the county the population was spread out with 26.10% under the age of 18, 7.00% from 18 to 24, 26.80% from 25 to 44, 22.30% from 45 to 64, and 17.90% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 93.00 males. For every 100 females age 18 and over, there were 90.10 males.

The median income for a household in the county was $39,103, and the median income for a family was $45,636. Males had a median income of $29,592 versus $22,818 for females. The per capita income for the county was $18,221. About 5.10% of families and 7.60% of the population were below the poverty line, including 10.30% of those under age 18 and 7.30% of those age 65 or over.


The county is served by 3 school districts[16]

  • Highland Community School District
  • Mid-Prairie Community School District
  • Washington Community School District.

Highland Community School District includes:[17]

  • Riverside Elementary School
  • Ainsworth Elementary School
  • Highland Middle School
  • Highland High School



Unincorporated communities

See also


  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 20, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^  
  4. ^
  5. ^ History
  6. ^ a b c past2present Resources and Information. This website is for sale!. Retrieved on 2013-09-05.
  7. ^ a b An illustrated history of the state of Iowa, being a complete civil, political, and military history of the state, from its first exploration down to 1875. Retrieved on 2013-09-05.
  8. ^ "US Gazetteer files: 2010, 2000, and 1990".  
  9. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  10. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 20, 2014. 
  11. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 20, 2014. 
  12. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 20, 2014. 
  13. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 20, 2014. 
  14. ^ "Population & Housing Occupancy Status 2010".  
  15. ^ "American FactFinder".  
  16. ^ Education, Iowa Department of (2008-09). "Web Report Engine - Address". Retrieved 2009-05-29. 
  17. ^ School District, Highland Community (2009). "Highland CSD". Retrieved 2009-05-29. 

External links

  • Washington County government's website

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