As of the census of 2000, there were 3,970 people, 1,456 households, and 1,131 families living in the city. The population density was 739.5 people per square mile (285.4/km2). There were 1,538 housing units at an average density of 286.5 per square mile (110.6/km2). The racial makeup of the city was 93.43% White, 0.08% African American, 1.56% Native American, 1.01% Asian, 0.05% Pacific Islander, 0.88% from other races, and 3.00% from two or more races. Hispanic or Latino of any race were 2.70% of the population. 16.8% were of German, 13.2% Irish, 8.5% English and 7.4% Norwegian ancestry.