As of the censusGR2 of 2000, there were 45,658 people, 19,444 households, and 12,152 families residing in the city. The population density was 1,195.2/km² (3,095.8/mi²). There were 21,843 housing units at an average density of 571.8/km² (1,481.1/mi²).
There were 19,444 households out of which 25.7% had children under the age of 18 living with them, 46.6% were married couples living together, 11.6% had a female householder with no husband present, and 37.5% were non-families. 30.2% of all households were made up of individuals and 14.1% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.84.
In the city the population was spread out with 21.4% under the age of 18, 6.7% from 18 to 24, 29.2% from 25 to 44, 22.2% from 45 to 64, and 20.6% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 91.2 males. For every 100 females age 18 and over, there were 87.9 males.
The median income for a household in the city was $35,048, and the median income for a family was $41,072. Males had a median income of $28,208 versus $24,505 for females. The per capita income for the city was $18,701. About 6.5% of families and 9.3% of the population were below the poverty line, including 12.1% of those under age 18 and 8.7% of those age 65 or over.