WA-List » Benton County

Benton County

FACT SHEET

  • Name origin: Named for Thomas Hart Benton (1782–1858), a US Senator from Missouri.
  • Established: 1905 Mar 8
  • County seat: Prosser
  • County government website
  • Upcoming events (via WA-List’s events calendar)
  • Population (2010): 175,177 (Rank: 10 of 39)
  • Area (2010): 1,700.38 square miles (Rank: 22 of 39)
  • Density (2010): 103.0 people per square miles (Rank: 9 of 39)
  • Highest elevation: 3,629 feet, unnamed locale in the Rattlesnake Hills about 14 miles north of Grandview.

 


Cities and Towns Population Area Density Elevation Zip code
(sq miles) (pop/sq miles) (feet)
1. Kennewick city 73,917 26.93 2,744.5 469 993**
2. Richland city 48,058 35.72 1,345.5 360 993**
3. West Richland city 11,811 21.92 538.9 380 99353
4. Prosser city 5,714 4.49 1,273.5 680 99350
5. Benton City city 3,038 2.46 1,235.0 514 99320

 


Additional facts

  • The trio of Kennewick, Richland, and Pasco (in Franklin County) is known as the Tri-Cities.
  • Kennewick is the 13th most populated city in the state. Richland is 21st. Among eastern Washington cities, Kennewick is 4th and Richland 6th.
  • Richland has the 6th largest land area for a city in Washington.

Notes

  • This page is updated periodically in an effort to keep information accurate and offer additional data.
  • = link to map
  • All population and area data are from the 2010 United States Census. All population density figures for cities greater than 5,000 people are as well. Densities of smaller towns and cities were calculated separately using US Census data.
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