 Those of Hispanic or Latino origin made up 1.2% of the population.In terms of ancestry, 33.1% were German, 20.7% were Irish, 11.4% were English, and 10.3% were American.Of the 3,489 households, 29.8% had children under the age of 18 living with them, 54.9% were married couples living together, 9.2% had a female householder with no husband present, 31.9% were non-families, and 28.1% of all households were made up of individuals.