As of the censusGR2 of 2000, there were 12,527 people, 6,246 households, and 3,154 families residing in the city. The population density was 1,709.1/km² (4,422.2/mi²). There were 7,306 housing units at an average density of 996.8/km² (2,579.1/mi²).
There were 6,246 households out of which 16.6% had children under the age of 18 living with them, 37.3% were married couples living together, 10.3% had a female householder with no husband present, and 49.5% were non-families. 39.9% of all households were made up of individuals and 19.7% had someone living alone who was 65 years of age or older. The average household size was 1.98 and the average family size was 2.63.
In the city the population was spread out with 15.8% under the age of 18, 5.5% from 18 to 24, 24.9% from 25 to 44, 25.7% from 45 to 64, and 28.0% who were 65 years of age or older. The median age was 47 years. For every 100 females there were 88.7 males. For every 100 females age 18 and over, there were 85.2 males.
The median income for a household in the city was $28,809, and the median income for a family was $37,016. Males had a median income of $25,756 versus $23,347 for females. The per capita income for the city was $22,801. About 9.5% of families and 13.3% of the population were below the poverty line, including 19.2% of those under age 18 and 8.2% of those age 65 or over.