 In terms of ancestry, 38.3% were English, 15.1% were Welsh, 12.8% were "American", 10.7% were German, 5.8% were Swedish, and 5.1% were Danish.Of the 1,545 households, 36.4% had children under the age of 18 living with them, 65.9% were married couples living together, 6.1% had a female householder with no husband present, 24.9% were non-families, and 22.5% of all households were made up of individuals.The average household size was 2.74 and the average family size was 3.24.