As of the censusGR2 of 2000, there were 30,224 people, 11,075 households, and 7,187 families residing in the city. The population density was 366.3/km² (948.7/mi²). There were 12,357 housing units at an average density of 149.8/km² (387.9/mi²). The racial makeup of the city was 66.67% White, 11.15% Black or African American, 9.91% Native American, 2.72% Asian, 0.54% Pacific Islander, 2.45% from other races, and 6.57% from two or more races. 6.13% of the population were Hispanic or Latino of any race.

There were 11,075 households out of which 39.9% had children under the age of 18 living with them, 47.2% were married couples living together, 12.6% had a female householder with no husband present, and 35.1% were non-families. 27.4% of all households were made up of individuals and 6.0% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 3.15.

In the city the population was spread out with 29.4% under the age of 18, 14.7% from 18 to 24, 32.8% from 25 to 44, 16.4% from 45 to 64, and 6.6% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 105.3 males. For every 100 females age 18 and over, there were 108.2 males.

The median income for a household in the city was $40,577, and the median income for a family was $46,785. Males had a median income of $30,539 versus $26,577 for females. The per capita income for the city was $19,814. About 7.4% of families and 10.5% of the population were below the poverty line, including 11.6% of those under age 18 and 7.0% of those age 65 or over.