As of the census of 2000, there were 11,384 people, 3,881 households, and 2,782 families residing in the city. The population density was 418.9 people per square mile (161.8/km²). There were 4,258 housing units at an average density of 156.7/sq mi (60.5/km²). The racial makeup of the city was 68.09% White, 2.91% Black or African American, 2.33% Native American, 1.66% Asian, 0.07% Pacific Islander, 20.33% from other races, and 4.62% from two or more races. Hispanic or Latino of any race were 36.21% of the population.
There were 3,881 households, 42.6% of them with children under the age of 18; 47.3% were married couples living together, 17.8% had a female householder with no husband present, and 28.3% were non-families. Single individuals made up 22.3% of all households, and 9.2% had someone living alone who was 65 years of age or older. The average household size was 2.89 persons and the average family size was 3.39.
In the city the population was spread out with 33.0% under the age of 18, 9.9% from 18 to 24, 29.1% from 25 to 44, 17.3% from 45 to 64, and 10.7% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 91.6 males. For every 100 females age 18 and over, there were 88.1 males.
The median income for a household in the city was $29,721, and the median income for a family was $37,403. Males had a median income of $30,829 versus $20,613 for females. The per capita income for the city was $14,141. About 17.8% of families and 20.2% of the population were below the poverty line, including 28.9% of those under age 18 and 10.3% of those age 65 or over.