At the 2000 census, there were 19,661 people, 8,071 households and 4,067 families residing in the city. The population density was 1,723.9 per square mile (665.3/km2). There were 8,429 housing units at an average density of . The racial makeup of the city was 95% White, 0.8% African American, 1.7% Native American, 0.8% Asian, 0% Pacific Islander, 0.22% from other races, and 1.33% from two or more races. Hispanic or Latino of any race were 0.77% of the population. 15.5% were of German, 12.6% Finnish, 8.9% French, 8.5% English, 8.2% Irish, 6.8% Italian and 6.7% Swedish ancestry according to Census 2000.