 0.69% of the population were Hispanic or Latino of any race.32.5% were of German, 16.4% Norwegian, 9.4% Swedish, 6.2% Irish and 5.2% American ancestry.There were 22,250 households out of which 30.20% had children under the age of 18 living with them, 56.70% were married couples living together, 8.00% had a female householder with no husband present, and 31.80% were non-families.