According to the United States Census Bureau, the city has a total area of 2.5 square miles (6.4 km²), of which, 2.0 square miles (5.1 km²) of it is land and 0.5 square miles (1.2 km²) of it (19.51%) is water.
The schools include, Woodlake High School, Woodlake Valley Middle School, Castle Rock Elementary School, F.J. White Elementary.
As of the census of 2000, there were 6,651 people, 1,777 households, and 1,496 families residing in the city. The population density was 3,357.4 people per square mile (1,297.0/km²). There were 1,874 housing units at an average density of 946.0/sq mi (365.4/km²). The racial makeup of the city was 47.06% White, 0.33% African American, 1.08% Native American, 0.90% Asian, 0.05% Pacific Islander, 45.81% from other races, and 4.77% from two or more races. Hispanic or Latino of any race were 83.82% of the population.
There were 1,777 households out of which 53.5% had children under the age of 18 living with them, 57.5% were married couples living together, 18.7% had a female householder with no husband present, and 15.8% were non-families. 12.9% of all households were made up of individuals and 6.6% had someone living alone who was 65 years of age or older. The average household size was 3.74 and the average family size was 4.02.
In the city the population was spread out with 37.8% under the age of 18, 11.7% from 18 to 24, 28.0% from 25 to 44, 15.0% from 45 to 64, and 7.5% who were 65 years of age or older. The median age was 25 years. For every 100 females there were 106.2 males. For every 100 females age 18 and over, there were 103.5 males.
The median income for a household in the city was $23,653, and the median income for a family was $23,880. Males had a median income of $23,175 versus $15,625 for females. The per capita income for the city was $8,842. About 33.0% of families and 36.8% of the population were below the poverty line, including 46.5% of those under age 18 and 14.6% of those age 65 or over.
In the state legislature Woodlake is located in the 16th Senate District, represented by Democrat Dean Florez, and in the 34th Assembly District, represented by Republican Bill Maze. Federally, Woodlake is located in California's 21st congressional district, which has a Cook PVI of R +13 and is represented by Republican Devin Nunes.
The community of Woodlake is serviced by its own municipal police department. The police services building is adjacent to the City Hall complex on Valencia Boulevard.