As of the 2010 United States Census, there were 41,667 people, 15,435 households, and 9,554 families residing in the city. The population density was 11,241.1 people per square mile (4,345.0/km²). There were 15,908 housing units at an average density of 4,701.3 per square mile (1,817.2/km²). The racial makeup of the city was 53.6% Non-Hispanic Whites, 14.3% African American, 4.8% Asian, 0.4% Pacific Islander, 2% from other races, and 3.8% were multiracial. Hispanic or Latino of any race were 21.1% of the population (9.3% Salvadoran, 3.0% Puerto Rican, 1.1% Colombian, 1.1% Dominican, 1.0% Guatemalan, 0.8% Mexican). The city also has a large number of people of Brazilian and Italian descent.
There were 15,435 households out of which 27.6% had children under the age of 18 living with them, 41.8% were married couples living together, 15.2% had a female householder with no husband present, and 38.1% were non-families. 31.3% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 3.11.
The population was spread out with 21.6% under the age of 18, 8.9% from 18 to 24, 34.8% from 25 to 44, 19.9% from 45 to 64, and 14.7% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 91 males. For every 100 females age 18 and over, there were 87.4 males.
The median income for a household in the city was $49,737. The median income for a family is $49,876. Males had a median income of $36,047 versus $30,764 for females. The per capita income for the city was $23,876. About 9.2% of families and 11.9% of the population were below the poverty line, including 16.9% of those under age 18 and 10.0% of those age 65 or over.