As of the census of 2000, there were 8,606 people, 3,638 households, and 1,931 families living in the city. The population density was 1,409.1 people per square mile (543.8/km2). There were 3,904 housing units at an average density of 639.2 per square mile (246.7/km2). The racial makeup of the city was 95.33% White, 0.35% African American, 2.31% Native American, 0.36% Asian, 0.02% Pacific Islander, 0.33% from other races, and 1.30% from two or more races. Hispanic or Latino of any race were 1.73% of the population. 37.5% were of German, 13.5% Norwegian, 9.6% English and 8.2% Irish ancestry according to Census 2000.