As of the census of 2000, there were 3,484 people, 1,296 households, and 929 families living in the city. The population density was 2,021.2 people per square mile (782.1/km). There were 1,333 housing units at an average density of 773.3 per square mile (299.2/km). The racial makeup of the city was 97.56% White, 0.40% African American, 0.52% Native American, 0.46% Asian, 0.09% Pacific Islander, 0.14% from other races, and 0.83% from two or more races. Hispanic or Latino of any race were 1.00% of the population. 38.1% were of German, 15.0% Norwegian, 8.4% Irish and 6.1% Swedish ancestry.