Kittitas County, Washington

Kittitas County: County in the state of Washington, United States

About

Kittitas County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 40,915 and a population density of 7 people per km². After 10 years in 2020 county had an estimated population of 49,204 inhabitants. Its county seat is Ellensburg. The county was created 142 years ago in 1882.

Kittitas County locator map
Location of Kittitas County on Washington map.

Quick Facts about Kittitas County

Population : 49,204 (2020)
Country : United States of America
State : Washington (United States)
Area : 6043 km2
Water as percent of area : 1.5%
Land as percent of area : 98.5%
Altitude : 2,116 feet / 645 meters
Capital : Ellensburg
Establishment : January 01, 1883
Time Zone : Pacific Time Zone
Local time : 09:39:32 (22nd February 2025)
Density : 8 Pop. per km² as of 2020
Population growth : 16.85% (2010-2020)
Kittitas County Courthouse - Ellensburg Washington image
Kittitas County Courthouse - Ellensburg Washington
Kittitas County Courthouse - Ellensburg Washington image
Kittitas County Courthouse - Ellensburg Washington image

Geography

Kittitas County is located at 47°7'27"N 120°40'47"W (47.1241700, -120.6797200). It has 6 neighbors: Chelan County, Douglas County, Grant County, King County, Pierce County and Yakima County.

Kittitas County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Kittitas County is Ellensburg with a population of 21,576. Other cities include, Cle Elum population 2,098, Kittitas population 1,521 and Roslyn population 972. See all Kittitas County cities & populated places.

Kittitas County Populated Places

Cities, towns, neighborhoods & other populated places in Kittitas County.

City Name Population Title
Ellensburg 21,576 City in Kittitas County, Washington, United States
Cle Elum 2,098 City in Kittitas County, Washington, United States
Kittitas 1,521 City in Kittitas County, Washington, United States
Roslyn 972 City in Kittitas County, Washington, USA
South Cle Elum 565 Town of the United States

Kittitas County has 6 neighbours.

  • Ellensburg

Demographics

The population of Kittitas County increased by 16.85% in 10 years.

Year Population % Change Method
2010 40,915 - census
2011 41,554 1.54% estimation process
2012 41,624 0.17% estimation process
2013 41,828 0.49% estimation process
2014 42,596 1.8% estimation process
2015 43,095 1.16% estimation process
2016 44,922 4.07% estimation process
2017 46,176 2.72% estimation process
2018 47,358 2.5% estimation process
2019 47,935 1.2% estimation process
2020 49,204 2.58% estimation process

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People born in Kittitas County (2)

People born in Kittitas County, including geologist, paleontologist, botanist Raymond Cecil Moore, Racing cyclist Morgan Schmitt, .

List

Washington Other Counties (more counties)

County Name Population Title
King County 2,274,315 County in the state of Washington, United States
Pierce County 913,890 County in the state of Washington, United States
Snohomish County 830,393 County in the state of Washington, United States
Seattle 769,714 The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
Spokane County 528,225 County in the state of Washington, United States
Clark County 496,865 County in Washington, United States
Thurston County 294,074 County in the state of Washington, United States
Kitsap County 272,787 County in the state of Washington, United States
Yakima County 251,879 County in the state of Washington, United States
Whatcom County 231,016 County in the state of Washington, United States
Spokane 222,050 The second most populous city in Washington.
Tacoma 219,945 The third most populous city in Washington.
Benton County 206,426 County in Arkansas, United States
Vancouver 186,192 The third most populous city in Washington.
Bellevue 148,073 The most populous city in Washington.
Skagit County 130,789 County in the state of Washington, United States