It is a suburb of Providence.
As of the census of 2000, there were 48,688 people, 20,530 households, and 12,851 families residing in the city. The population density was 3,632.1 people per square mile (1,401.8/km²). There were 21,309 housing units at an average density of 1,589.6/sq mi (613.5/km²). The racial makeup of the city was 86.49% White, 5.02% African American, 0.46% Native American, 1.15% Asian, 0.05% Pacific Islander, 2.80% from other races, and 4.03% from two or more races. Hispanic or Latino of any race were 1.89% of the population.
There were 20,530 households out of which 27.1% had children under the age of 18 living with them, 46.3% were married couples living together, 12.7% had a female householder with no husband present, and 37.4% were non-families. 32.4% of all households were made up of individuals and 14.6% had someone living alone who was 65 years of age or older. The average household size was 2.33 and the average family size was 2.99.
In the city the population was spread out with 21.7% under the age of 18, 7.4% from 18 to 24, 29.4% from 25 to 44, 22.6% from 45 to 64, and 18.9% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 86.8 males. For every 100 females age 18 and over, there were 82.6 males.
The median income for a household in the city was $39,108, and the median income for a family was $48,463. Males had a median income of $34,342 versus $26,423 for females. The per capita income for the city was $19,527. About 6.3% of families and 8.6% of the population were below the poverty line, including 10.7% of those under age 18 and 11.0% of those aged 65 or over.
The population has large immigrant communities from Portugal, the Azores and Cape Verde.