Willows (formerly, Willow) is the county seat of Glenn County, California. As the county seat, the town is a home to regional government offices, including the California Highway Patrol, California Department of Motor Vehicles and the United States Bureau of Reclamation. The population was 6,220 at the 2000 census.
According to the United States Census Bureau, the city has a total area of 2.9 square miles (7.5 km²), of which, 2.9 square miles (7.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.04%) is water.
As of the census of 2000, there were 6,220 people, 2,134 households, and 1,513 families residing in the city. The population density was 2,168.5 people per square mile (836.8/km²). There were 2,368 housing units at an average density of 825.6/sq mi (318.6/km²). The racial makeup of the city was 69.26% White, 0.88% Black or African American, 2.25% Native American, 10.31% Asian, 0.24% Pacific Islander, 12.30% from other races, and 4.76% from two or more races. 23.25% of the population were Hispanic or Latino of any race.
There were 2,134 households out of which 38.5% had children under the age of 18 living with them, 52.1% were married couples living together, 14.2% had a female householder with no husband present, and 29.1% were non-families. 24.7% of all households were made up of individuals and 11.0% had someone living alone who was 65 years of age or older. The average household size was 2.83 and the average family size was 3.40.
In the city the population was spread out with 32.7% under the age of 18, 9.6% from 18 to 24, 26.4% from 25 to 44, 19.0% from 45 to 64, and 12.4% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 98.1 males. For every 100 females age 18 and over, there were 92.4 males.
The median income for a household in the city was $27,466, and the median income for a family was $35,856. Males had a median income of $30,297 versus $22,159 for females. The per capita income for the city was $12,523. About 17.7% of families and 24.6% of the population were below the poverty line, including 39.6% of those under age 18 and 9.4% of those age 65 or over.
In the state legislature Willows is located in the 4th Senate District, represented by Republican Sam Aanestad, and in the 2nd Assembly District, represented by Republican Doug LaMalfa. Federally, Willows is located in California's 2nd congressional district, which has a Cook PVI of R +13 and is represented by Republican Wally Herger.