Plumas County is a county in the Sierra Nevada of California, United States. As of the 2010 census, the population was 20,007. The county seat is Quincy, and the only incorporated city is Portola. The largest community in the county is East Quincy. The county was named for the Spanish Río de las Plumas (the Feather River), which flows through the county.
According to the U.S. Census Bureau, the county has a total area of 2,613 square miles (6,770 km), of which 2,553 square miles (6,610 km) is land and 60 square miles (160 km) (2.3%) is water.
Plumas County is located in the far northern end of the Sierra Nevada range. The area’s rugged terrain marks the transition point between the northern Sierra Nevadas and the southern end of the Cascade Range. Lassen Peak, which is the southernmost volcanic peak in the Cascade Range, is found just north of Plumas County’s border, and part of Lassen Volcanic National Park extends into the northwest corner of the county.
Plumas National Forest’s 1,200,000 acres (4,900 km) offer a wide variety of outdoor recreation opportunities, including hiking, camping, kayaking, swimming, mountain biking, hunting and fishing. The area features more than 100 natural and artificial lakes. Many of the natural lakes are glacial in origin and can be found in and around Lakes Basin Recreation Area. The artificial lakes include Lake Almanor, Lake Davis, Frenchman Lake, Little Grass Valley Reservoir, Antelope Lake, and Buck’s Lake. Plumas County also features more than 1,000 miles of rivers and streams. All three forks of the Feather River run through the area.
The 2010 United States Census reported that Plumas County had a population of 20,007. The racial makeup of Plumas County was 17,797 (89.0%) White, 192 (1.0%) African American, 539 (2.7%) Native American, 134 (0.7%) Asian, 18 (0.1%) Pacific Islander, 603 (3.0%) from other races, and 724 (3.6%) from two or more races. Hispanic or Latino of any race were 1,605 persons (8.0%).
As of the census of 2000, there were 20,824 people, 9,000 households, and 6,047 families residing in the county. The population density was 8 people per square mile (3/km²). There were 13,386 housing units at an average density of 5 per square mile (2/km²). The racial makeup of the county was 91.8% White, 0.6% Black or African American, 2.6% Native American, 0.5% Asian, 0.1% Pacific Islander, 1.8% from other races, and 2.6% from two or more races. 5.7% of the population were Hispanic or Latino of any race. 16.1% were of German, 15.0% English, 10.1% Irish and 8.0% American ancestry according to Census 2000. 95.4% spoke English and 3.6% Spanish as their first language.
There were 9,000 households out of which 26.4% had children under the age of 18 living with them, 55.4% were married couples living together, 8.0% had a female householder with no husband present, and 32.8% were non-families. 27.5% of all households were made up of individuals and 10.1% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.77.
In the county, the population was spread out with 22.7% under the age of 18, 6.0% from 18 to 24, 22.6% from 25 to 44, 30.8% from 45 to 64, and 17.9% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 99.8 males. For every 100 females age 18 and over, there were 97.9 males.
The median income for a household in the county was $36,351, and the median income for a family was $46,119. Males had a median income of $38,742 versus $25,734 for females. The per capita income for the county was $19,391. About 9.0% of families and 13.1% of the population were below the poverty line, including 16.7% of those under age 18 and 6.4% of those age 65 or over.
Plumas County California neighborhoods include: Draper Ranch, Plumas Lake, Wheeler Ranch