At the 2000 census, there were 4,096 people, 1,621 households and 1,087 families residing in the city. The population density was 332.2 per square mile (128.3/km). There were 1,799 housing units at an average density of 145.9 per square mile (56.3/km). The racial makeup of the city was 92.53% White, 0.22% African American, 1.32% Native American, 1.76% Asian, 0.07% Pacific Islander, 1.27% from other races, and 2.83% from two or more races. Hispanic or Latino of any race were 2.91% of the population. 15.4% were of American, 12.1% German, 9.2% English, 8.9% Irish and 8.1% Norwegian ancestry according to Census 2000.