Polk County , Oregon

Polk County: County in Oregon, United States

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


Polk County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 75,403 and a population density of 39 people per km². After 9 years in 2019 county had an estimated population of 86,085 inhabitants. Its county seat is Dallas. The county was created 176 years ago in 1844.


Polk County is located at 44°54'13"N 123°24'48"W (44.9034800, -123.4133700). It has 6 neighbors: Marion County, Linn County, Benton County, Lincoln County, Tillamook County and Yamhill County.

The largest city of Polk County is Dallas with a population of 16,979. Other cities include, Monmouth population 10,586, Independence population 10,272 and Falls City population 1,056. See all Polk County cities & populated places.

Polk County map

Polk County Quick Facts

Population : 86,085 (2019)
Country : United States of America
State : Oregon (United States)
Different from : Polk County
Area : 1927 km2
Water as percent of area : 0.4%
Land as percent of area : 99.6%
Named for : James K. Polk
Capital : Dallas
Establishment : January 01, 1845
Time Zone : America/Los_Angeles
Local time : 02:41:36 (15th June 2021)
Density : 45 Pop. per km² as of 2019
Population growth : 12.41% (2010-2019)

Polk County has 6 neighbours.

  • Dallas


The population of Polk County increased by 12.41% in 9 years.

Year Population % Change Method
2010 75,403 - census
2011 75,931 0.7% estimation process
2012 76,209 0.36% estimation process
2013 76,544 0.44% estimation process
2014 77,659 1.44% estimation process
2015 78,962 1.65% estimation process
2016 81,436 3.04% estimation process
2017 83,711 2.72% estimation process
2018 84,992 1.51% estimation process
2019 86,085 1.27% estimation process

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Other places with the same name (11)

Polk County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Polk County.

City Name Population Title
Dallas 16,979 City in Oregon, USA
Monmouth 10,586 City in Oregon, USA
Independence 10,272 City in Oregon, USA
Falls City 1,056 City in Oregon, USA

Oregon Other Counties (more counties)

County Name Population Title
Oregon 4,217,737 State of the United States of America
Multnomah County 812,855 County in Oregon, United States
Portland 654,741 City in Oregon, USA
Washington County 601,592 County in Oregon, United States
Clackamas County 418,187 County in Oregon, United States
Lane County 382,067 County in Oregon, United States
Marion County 347,818 County in Oregon, United States
Jackson County 220,944 County in Oregon, United States
Deschutes County 197,692 County in Oregon, United States
Salem 174,365 City and capital of Oregon, USA
Eugene 172,622 City in Lane County, Oregon, United States
Linn County 129,749 County in Oregon, United States
Terrebonne 117,664 Census-designated place in Deschutes County, Oregon
Douglas County 110,980 County in Oregon, United States
Gresham 109,381 City in Oregon, USA
Hillsboro 109,128 City in Oregon, USA

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