Facts about Polk County, Oregon
Polk County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 75,403, making it the least populous county in the Willamette Valley. The county seat is Dallas. The county is named for James Knox Polk, the 11th president of the United States.
According to the U.S. Census Bureau, the county has a total area of 744 square miles (1,930 km²), of which 741 square miles (1,920 km²) is land and 3.1 square miles (8.0 km²) (0.4%) is water.
As of the 2010 United States Census, there were 75,403 people, 28,288 households, and 19,545 families residing in the county. The population density was 101.8 inhabitants per square mile (39.3/km²). There were 30,302 housing units at an average density of 40.9 per square mile (15.8/km²). The racial makeup of the county was 85.9% white, 2.1% American Indian, 1.9% Asian, 0.6% black or African American, 0.3% Pacific islander, 5.4% from other races, and 3.8% from two or more races. Those of Hispanic or Latino origin made up 12.1% of the population. In terms of ancestry, 22.4% were German, 16.4% were English, 10.4% were Irish, and 6.4% were American.
Of the 28,288 households, 32.4% had children under the age of 18 living with them, 54.2% were married couples living together, 10.3% had a female householder with no husband present, 30.9% were non-families, and 23.0% of all households were made up of individuals. The average household size was 2.60 and the average family size was 3.06. The median age was 37.1 years.
Serving Polk County, Oregon