Clackamas County, Oregon

Clackamas County: County in Oregon, United States


Clackamas County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 375,992 and a population density of 77 people per km². After 10 years in 2020 county had an estimated population of 421,596 inhabitants. Its county seat is Oregon City. The county was created 181 years ago in 1842.

Clackamas County locator map
Location of Clackamas County on Oregon map.

Quick Facts about Clackamas County

Population : 421,596 (2020)
Country : United States of America
State : Oregon (United States)
Twitter username : clackamascounty
Area : 4867 km2
Water as percent of area : 0.7%
Land as percent of area : 99.3%
Named for : Clackamas people
Altitude : 2,014 feet / 614 meters
Capital : Oregon City
Establishment : January 01, 1843
Time Zone : America/Los_Angeles
Local time : 19:17:32 (29th February 2024)
Density : 87 Pop. per km² as of 2020
Population growth : 10.82% (2010-2020)
Clackamas County Courthouse 'Clackamas County  Oregon scenic images' 'clacD0034' image
Clackamas County Courthouse 'Clackamas County Oregon scenic images' 'clacD0034'
Clackamas County Courthouse 'Clackamas County  Oregon scenic images' 'clacD0034' image


Clackamas County is located at 45°11'17"N 122°13'15"W (45.1881600, -122.2209400). It has 6 neighbors: Marion County, Hood River County, Multnomah County, Wasco County, Washington County and Yamhill County.

Clackamas County map

The largest city of Clackamas County is Lake Oswego with a population of 39,821. Other cities include, Oregon City population 37,339, West Linn population 26,747, Wilsonville population 24,985 and Happy Valley population 23,781. See all Clackamas County cities & populated places.

Clackamas County Populated Places (more)

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

City Name Population Title
Lake Oswego 39,821 A city in Clackamas County, Oregon.
Oregon City 37,339 City in Oregon, USA
West Linn 26,747 City in Oregon, USA
Wilsonville 24,985 City in Oregon, USA
Happy Valley 23,781 City in Oregon, USA
Milwaukie 21,046 City in Oregon, United State
Canby 18,027 City in Oregon, USA
Oak Grove 16,629 Town in West Carroll Parish, Louisiana
Gladstone 12,418 City in Oregon, USA
Sandy 11,566 City in Oregon, USA
Molalla 9,303 City in Oregon, USA
Jennings Lodge 7,315 Census-designated place in Clackamas County, Oregon
Clackamas 6,965 Unincorporated community in Oregon, United States
Mount Hood Village 4,864 City in Clackamas County, Oregon, United States of America
Estacada 4,193 City in Oregon, USA
Johnson City 629 City in Oregon, USA

Clackamas County has 6 neighbours.

  • Oregon City


The population of Clackamas County increased by 10.82% in 10 years.

Year Population % Change Method
2010 375,992 - census
2011 379,592 0.95% estimation process
2012 383,074 0.91% estimation process
2013 387,442 1.13% estimation process
2014 393,378 1.51% estimation process
2015 399,647 1.57% estimation process
2016 406,625 1.72% estimation process
2017 412,442 1.41% estimation process
2018 415,416 0.72% estimation process
2019 418,187 0.66% estimation process
2020 421,596 0.81% estimation process

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People born in Clackamas County (4)

People born in Clackamas County, including composer George Bruns, mixed martial artist, podcaster television personality, and current UFC light heavyweight champion of the world. Chael Sonnen, actress Darcy LaPier, .


Oregon Other Counties (more counties)

County Name Population Title
Multnomah County 815,637 County in Oregon, United States
Portland 656,751 The twenty-sixth most populous city in the United States and the center of the Portland metropolitan area.
Washington County 603,514 County in Oregon, United States
Lane County 382,986 County in Oregon, United States
Marion County 349,204 County in Oregon, United States
Jackson County 221,844 County in Oregon, United States
Deschutes County 201,769 County in Oregon, United States
Salem 175,891 The capital of Oregon.
Eugene 173,236 The second most populous city in Oregon.
Linn County 131,054 County in Oregon, United States
Terrebonne 117,664 Census-designated place in Deschutes County, Oregon
Douglas County 111,364 County in Oregon, United States
Hillsboro 110,985 The most populous city in Washington County, Oregon.
Gresham 110,031 The second most populous city in Multnomah County, Oregon.
Yamhill County 107,664 County in Oregon, United States
Bend 101,886 The most populous city in Deschutes County, Oregon.

Map & Images (more maps)

Clackamas County Map
Clackamas County Map