As of the censusGR2 of 2000, there were 42,514 people, 18,670 households, and 9,969 families residing in the city. The population density was 982.3/km² (2,544.4/mi²). There were 19,738 housing units at an average density of 456.1/km² (1,181.3/mi²). The ethnic makeup of the city is 85.26% White, 1.89% African American, 1.30% Native American, 5.82% Asian, 0.29% Pacific Islander, 1.68% from other cultural backgrounds, and 3.76% from two or more ethnicities. 4.38% of the population were Hispanic or Latino of any ethnicities.
There were 18,670 households out of which 26.8% had children under the age of 18 living with them, 39.6% were married couples living together, 10.4% had a female householder with no husband present, and 46.6% were non-families. 35.2% of all households were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.88.
In the city the population was spread out with 21.5% under the age of 18, 11.9% from 18 to 24, 30.4% from 25 to 44, 22.9% from 45 to 64, and 13.3% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 91.5 males. For every 100 females age 18 and over, there were 88.1 males.
The median income for a household in the city was $40,846, and the median income for a family was $54,136. Males had a median income of $41,267 versus $31,515 for females. The per capita income for the city was $22,590. About 6.9% of families and 12.1% of the population were below the poverty line, including 10.4% of those under age 18 and 6.3% of those age 65 or over.