As of the census of 2000, there were 4,647 people, 2,113 households, and 1,210 families residing in the borough. The population density was 9,060.8 people per square mile (3,518.1/km²). There were 2,595 housing units at an average density of 5,059.8/sq mi (1,964.6/km²). The racial makeup of the borough was 98.79% White, 0.22% African American, 0.09% Native American, 0.22% Asian, 0.22% from other races, and 0.47% from two or more races. Hispanic or Latino of any race were 1.29% of the population.
There were 2,113 households out of which 22.7% had children under the age of 18 living with them, 37.2% were married couples living together, 13.8% had a female householder with no husband present, and 42.7% were non-families. 39.5% of all households were made up of individuals and 24.9% had someone living alone who was 65 years of age or older. The average household size was 2.20 and the average family size was 2.92.
In the borough the population was spread out with 21.3% under the age of 18, 6.8% from 18 to 24, 24.9% from 25 to 44, 21.0% from 45 to 64, and 26.0% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 89.3 males. For every 100 females age 18 and over, there were 84.6 males.
The median income for a household in the borough was $24,347, and the median income for a family was $32,033. Males had a median income of $29,628 versus $20,288 for females. The per capita income for the borough was $14,369. About 12.6% of families and 17.4% of the population were below the poverty line, including 22.3% of those under age 18 and 20.9% of those age 65 or over.