As of the census of 2000, there were 149,080 people, 59,703 households, and 39,702 families residing in the city. The population density was 2,627.0 people per square mile (1,014.3/km²). There were 62,586 housing units at an average density of 1,102.9/sq mi (425.8/km²). The racial makeup of the city was 90.65% White, 2.55% African American, 0.27% Native American, 3.83% Asian, 0.03% Pacific Islander, 1.24% from other races, and 1.43% from two or more races. 3.77% of the population were Hispanic or Latino of any race.
There were 59,703 households out of which 33.9% had children under the age of 18 living with them, 56.8% were married couples living together, 7.4% had a female householder with no husband present, and 33.5% were non-families. 27.4% of all households were made up of individuals and 7.7% had someone living alone who is 65 years of age or older. The average household size was 2.47 and the average family size was 3.06.
In the city the population was spread out with 26.2% under the age of 18, 7.0% from 18 to 24, 32.5% from 25 to 44, 23.0% from 45 to 64, and 11.4% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 93.8 males. For every 100 females age 18 and over, there were 90.1 males. The median income for a household in the city was $62,116, and the median income for a family was $77,176. Males had a median income of $52,072 versus $34,186 for females. The per capita income for the city was $32,069. 3.2% of the population and 2.1% of families were living below the poverty line, including 2.9% of those under the age of 18 and 3.5% of those 65 and older.
According to a 2007 estimate, the median income for a household in the city was $70,405, and the median income for a family was $91,806.