Lane County is a county in the U.S. state of Oregon. As of the 2010 census, the population was 351,715, making it the fourth-most populous county in Oregon. The county seat is Eugene. It is named in honor of Joseph Lane, Oregon’s first territorial governor.
According to the United States Census Bureau, the county has a total area of 4,722 square miles (12,230 km), of which 4,553 square miles (11,790 km) is land and 169 square miles (440 km) (3.6%) is water. Lane County is one of two Oregon counties that extend from the Pacific Ocean to the Cascades (the other is Douglas County.) A portion of the Umpqua National Forest is in Lane County. Portions of the Willamette, McKenzie, and Siuslaw rivers run through the county.
As of the census of 2000, there were 322,959 people, 130,453 households, and 82,185 families residing in the county. The population density was 71 people per square mile (27/km²). There were 138,946 housing units at an average density of 30 per square mile (12/km²). The racial makeup of the county was 90.64% White, 0.78% Black or African American, 1.13% Native American, 2.00% Asian, 0.19% Pacific Islander, 1.95% from other races, and 3.32% from two or more races. 4.61% of the population were Hispanic or Latino of any race.
There were 130,453 households out of which 28.50% had children under the age of 18 living with them, 48.90% were married couples living together, 10.00% had a female householder with no husband present, and 37.00% were non-families. 26.60% of all households were made up of individuals and 9.10% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.92.
In the county, the population was spread out with 22.90% under the age of 18, 12.00% from 18 to 24, 27.50% from 25 to 44, 24.40% from 45 to 64, and 13.30% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.90 males. For every 100 females age 18 and over, there were 94.70 males.
The median income for a household in the county was $36,942, and the median income for a family was $45,111. Males had a median income of $34,358 versus $25,103 for females. The per capita income for the county was $19,681. About 9.00% of families and 14.40% of the population were below the poverty line, including 16.10% of those under age 18 and 7.50% of those age 65 or over.
As of the 2010 United States Census, there were 351,715 people, 145,966 households, and 86,938 families residing in the county. The population density was 77.2 inhabitants per square mile (29.8/km). There were 156,112 housing units at an average density of 34.3 per square mile (13.2/km). The racial makeup of the county was 88.3% white, 2.4% Asian, 1.2% American Indian, 1.0% black or African American, 0.2% Pacific islander, 2.8% from other races, and 4.2% from two or more races. Those of Hispanic or Latino origin made up 7.4% of the population. In terms of ancestry, 21.8% were German, 14.9% were English, 13.8% were Irish, and 5.3% were American.
Of the 145,966 households, 26.3% had children under the age of 18 living with them, 44.3% were married couples living together, 10.6% had a female householder with no husband present, 40.4% were non-families, and 28.9% of all households were made up of individuals. The average household size was 2.35 and the average family size was 2.87. The median age was 39.0 years.
The median income for a household in the county was $42,923 and the median income for a family was $55,817. Males had a median income of $43,383 versus $32,745 for females. The per capita income for the county was $23,869. About 10.0% of families and 16.7% of the population were below the poverty line, including 17.1% of those under age 18 and 8.7% of those age 65 or over.
Lane County is the fourth most populous county in Oregon. It grew more slowly from 2000 to 2010 than did the three larger counties, Multnomah (the most populous Oregon county), Washington and Clackamas.