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Benton County, Washington

Benton County, Washington
Benton County Courthouse
Logo of Benton County, Washington
Map of Washington highlighting Benton County
Location in the state of Washington
Map of the United States highlighting Washington
Washington's location in the U.S.
Founded March 8, 1905
Named for Thomas Hart Benton
Senator and Representative from Missouri
Seat Prosser
Largest city Kennewick
 • Total 1,760 sq mi (4,558 km2)
 • Land 1,700 sq mi (4,403 km2)
 • Water 60 sq mi (155 km2), 3.4%
Population (Est.)
 • (2013) 184,486
 • Density 103/sq mi (39.7/km²)
Congressional district 4th
Time zone Pacific: UTC-8/-7
Website .us.wa.benton.cowww
Benton County, Washington

Benton County is a county located in the south-central portion of the State of Washington. As of the 2010 census, its population was 175,177.[1] The county seat is Prosser,[2] and its largest city is Kennewick. The Columbia River demarcates the north, south, and east boundaries of the county.

Benton County was created from what were then larger versions of Klickitat County and Yakima County on 8 March 1905.[3] and was named after U.S. Senator from Missouri (1821-1851) and later U.S. Representative (1853-1855) Thomas Hart Benton.


  • Geography 1
    • Waterways 1.1
    • Mountains/Hills 1.2
    • Adjacent counties 1.3
    • National protected area 1.4
    • Major highways 1.5
  • Communities 2
    • Cities 2.1
    • Census-designated places 2.2
    • Other communities 2.3
    • Ghost towns 2.4
  • Governance 3
  • Demographics 4
  • Education 5
    • Compulsary Education 5.1
    • Higher Education 5.2
  • Recreation, Culture, and Tourism 6
    • Golf Courses 6.1
    • Museums 6.2
    • Professional Sports 6.3
    • Public Lands 6.4
    • Wineries 6.5
  • Sites of Interest 7
  • See also 8
  • References 9
  • Further reading 10
  • External links 11


According to the U.S. Census Bureau, the county has a total area of 1,760 square miles (4,600 km2), of which 1,700 square miles (4,400 km2) is land and 60 square miles (160 km2) (3.4%) is water.[4]



Adjacent counties

National protected area

Major highways



  1. 75,971 - Kennewick
  2. 51,440 - Richland
  3. 12,663 - West Richland
  4. 5,799 - Prosser
  5. 3,142 - Benton City

2012 Estimate population[5]

Census-designated places

Other communities

Ghost towns


Benton County is one of the 33 counties in Washington that operates under the non-chartered "commission" or "plural executive" form of government. Three commissioners share administrative aegis with several other partisan officials independently-elected to four-year terms of office. Judges of the superior court are also independently elected. In Benton County, the commissioners appoint a county administrator to oversee all departments that do not fall under other elected officials.

  • Commissioner (District 1) - Jerome Delvin
  • Commissioner (District 2) - Shon Small
  • Commissioner (District 3) - James Beaver
  • Assessor - Barbara Wagner
  • Auditor - Brenda Chilton
  • Clerk - Josephine Delvin
  • Coroner - John Hansens
  • Prosecutor - Andy Miller
  • Sheriff - Steve Keane
  • Treasurer - Duane Davidson

The County government is seated in Prosser, with many departments having satellite and auxillary offices and facilities in Richland, Kennewick, and elsewhere.

There are five incorporated cities within Benton County. The two larger cities -- Kennewick and Richland -- employ the "council-manager" form of government where the mayor is elected from the city council and serves a more ceremonial role, whereby direct administration of the city is the responsibility of the city manager. The three smaller cities -- Benton City, Prosser, and West Richland -- use the "mayor-council" form of government where the mayor is the chief administrator of the city and is directly elected by the citizens. In Washington, a majority of cities use the mayor-council form, but the council-manager structure is common among medium-sized municipalities.

Numerous special purpose districts with varying degrees of taxing and administrative authority such as port authorities and school districts oversee local responsibilities that are not a part of county or city governance.


As of the 2010 United States Census, there were 175,177 people residing in the county. 82.4% were White, 2.7% Asian, 1.3% Black or African American, 0.9% Native American, 0.1% Pacific Islander, 9.0% of some other race and 3.6% of two or more races. 18.7% were Hispanic or Latino (of any race).

As of the census[10] of 2000, there were 142,475 people, 52,866 households, and 38,063 families residing in the county. The population density was 84 people per square mile (32/km²). There were 55,963 housing units at an average density of 33 per square mile (13/km²). The racial makeup of the county was 86.25% White, 0.93% Black or African American, 0.82% Native American, 2.20% Asian, 0.11% Pacific Islander, 7.01% from other races, and 2.69% from two or more races. 12.50% of the population were Hispanic or Latino of any race. 18.1% were of German, 11.0% English, 9.1% United States or American and 8.4% Irish ancestry according to Census 2000. 86.4% spoke English and 10.3% Spanish as their first language.

There were 52,866 households out of which 38.20% had children under the age of 18 living with them, 57.60% were married couples living together, 10.20% had a female householder with no husband present, and 28.00% were non-families. 23.20% of all households were made up of individuals and 7.70% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.17.

In the county, the population was spread out with 29.70% under the age of 18, 8.60% from 18 to 24, 28.50% from 25 to 44, 22.90% from 45 to 64, and 10.30% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 98.70 males. For every 100 females age 18 and over, there were 96.30 males.

The median income for a household in the county was $47,044, and the median income for a family was $54,146. Males had a median income of $45,556 versus $27,232 for females. The per capita income for the county was $21,301. About 7.80% of families and 10.30% of the population were below the poverty line, including 14.30% of those under age 18 and 6.90% of those age 65 or over.


Compulsary Education

Benton County is serviced by six public school districts and a few smaller private schools. Delta High School, located in Richland, is a public high school specializing in the "STEM" fields of study (science, technology, engineering, mathematics). Delta High School is a collaborative venture of the Kennewick, Pasco, and Richland school districts.

Higher Education

Two public college branch campuses are located in Benton County, each in Richland:

Recreation, Culture, and Tourism

The Tri-City area’s favorable climate, generally lower costs of living, and central location within a four hour’s drive of the Seattle, Portland, Boise, and Spokane metropolitan areas has made it a popular destination for conferences, sports tournaments, festivals, agri-tourism, and other attractions that are aggressively marketed by the community.

Golf Courses

Benton County is home to seven publicly accessible golf courses:

  • Canyon Lakes (Kennewick) - 7,026 yards | 73.8 / 131
  • Columbia Park (Kennewick) - 2,447 yards | note: "par 3"
  • Tri-City Country Club (Kennewick) - 4,900 yards | 63.9 / 115 | note: semi-private
  • Buckskin (Richland) - note: 9 holes
  • Columbia Point (Richland) - 6,571 yards | 71.2 / 128 | note: municipal
  • Horn Rapids (Richland) - 7,060 yards | 74.0 / 139
  • West Richland (West Richland) - 6,014 yards

A private golf and country club, Meadow Springs, is also located in Richland.


Benton County Historical Museum. East Benton County Historical Museum. Hanford Reach Interpretive Center.

Professional Sports

Two professional sports teams are currently based in Kennewick and play their games at the Toyota Center… The Tri-Cities Fever are a professional indoor football team, founded in 2005 as members of the Indoor Football League. The Fever are the only IFL team in the Pacific Northwest. The Tri-City Americans are a major junior hockey team and are a founding member of the Western Hockey League. The Americans began their journey as the Calgary Buffaloes in 1966, and after stints in Billings, Nanaimo, and New Westminster, moved to the Tri-Cities for the 1988-89 season where they were rebranded as the “Americans”. Players are 16-20 years old and are generally considered to have amateur status, though they do receive nominal compensation and the organization is operated as a for-profit business.

Public Lands

Like many Western counties, Benton County is home to considerable public lands acreage totaling about one-third of the county’s total land area. The most significant holding is the United States Department of Energy’s Hanford Site, most of which has restricted public access. However, Hanford does have a strong “nuclear tourism” element and certain Site facilities, such as the B Reactor, are a major attraction for history and engineering buffs. Part of the Hanford Site acreage is also part of the Hanford Reach National Monument, which was established in 2000 by presidential proclamation. Like with most of the rest of Hanford, most of the National Monument within Benton County is restricted from general public use.

Other federal land holdings in the county include small clusters of Bureau of Land Management, notably an aggregation along the Horse Heaven Hills south of Benton City that is popular with hikers; Fish and Wildlife Service-owned islands and shorelands that are parts of the Umatilla and McNary National Wildlife Refugues; and Army Corps of Engineers properties along the Columbia River, most of which are managed for habitat and recreation by the County and cities.

State-owned public lands are minimal in Benton County, with the Department of Fish and Wildlife’s Rattlesnake Slope Wildlife Recreation Area north of Benton City being the most significant and a draw for hikers and equestrians.

Benton County and the cities also own numerous parklands and open spaces, most notable the Badger Mountain Centennial Preserve, a hiking destination managed by the County located south of Richland which draws over 200,000 visits per year.


Kiona Vineyard in the Red Mountain AVA looking northwest toward Rattlesnake Mountain. Two varieties of grapes are evident on a crisp autumn day.

The area of south-central Washington occupied by Benton County has been known primarily as an agricultural hub since its settlement by white Americans. The rise of viticulture has had a profound impact on the agricultural and tourism industries over the past two decades, and has in many ways reshaped the reputation of the region.

The Yakima Valley AVA, part of which is located in Benton County, was the first American Viticultural Area established within Washington State, gaining the recognition in 1983. As the Washington wine industry began to focus more on terroir, three sub-appellations have been created for areas within the Yakima Valley AVA that demonstrate unique microclimates and soil conditions which crafted different wines from their neighboring areas. The Red Mountain AVA, which lies in its entirety on Benton County, was created in 2001. The county also includes part of the Horse Heaven Hills AVA which is part of the larger Columbia Valley AVA.

Sites of Interest

See also


  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved January 7, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "US Gazetteer files: 2010, 2000, and 1990".  
  4. ^ "Incorporated Places and Minor Civil Divisions: Washington". Population Census. United States Census Bureau. 2013-09-25. Retrieved 2013-09-25. 
  5. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved January 7, 2014. 
  6. ^ "Historical Census Browser". University of Virginia Library. Retrieved January 7, 2014. 
  7. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved January 7, 2014. 
  8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved January 7, 2014. 
  9. ^ "American FactFinder".  

Further reading

  • William Denison Lyman, History of the Yakima Valley, Washington: Comprising Yakima, Kittitas, and Benton Counties. In Two Volumes. Chicago: S.J. Clarke Publishing Co., 1919. Volume 1 | Volume 2

External links

  • Benton County (official website)
  • East Benton County Historical Museum
  • Tri-City Regional Chamber of Commerce

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