Who Are We?

It's from Wikipedia, so it must be true.

As of the census[4] of 2000, there were 17,189 people, 7,519 households, and 4,428 families residing in the city. The population density was 2,050.3 people per square mile (792.0/km2). There were 7,897 housing units at an average density of 942.0/sq mi (363.8/km2). The racial makeup of the city was 98.11% White, 0.42% African American, 0.12% Native American, 0.61% Asian, 0.01% Pacific Islander, 0.16% from other races, and 0.56% from two or more races. Hispanic or Latino of any race were 0.88% of the population.The top 5 ethnic groups are .Irish - 25%[1] · English - 16% · Italian - 11% · French (except Basque) - 7% · German - 6%

There were 7,519 households out of which 25.9% had children under the age of 18 living with them, 47.7% were married couples living together, 8.5% had a female householder with no husband present, and 41.1% were non-families. 33.1% of all households were made up of individuals and 9.7% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.90.

In the city the population was spread out with 20.7% under the age of 18, 4.4% from 18 to 24, 32.7% from 25 to 44, 28.2% from 45 to 64, and 14.0% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 86.7 males. For every 100 females age 18 and over, there were 82.9 males.

Now, this does go against the X-like anonymous poster's observation that the majority of people in the city move out once their kids graduate college.