As of the census of 2000, there were 5,520 people, 2,237 households, and 1,353 families living in the city. The population density was 894.1 people per square mile (345.4/km2). There were 2,373 housing units at an average density of 384.4 per square mile (148.5/km2). The racial makeup of the city was 97.21% White, 0.31% African American, 0.67% Native American, 0.58% Asian, 0.02% Pacific Islander, 0.25% from other races, and 0.96% from two or more races. Hispanic or Latino of any race were 0.63% of the population. 24.7% were of Swedish, 24.6% German, 14.6% Norwegian and 5.1% Irish ancestry according to Census 2000.