2020 census As of the
2020 census, there were 11,059 people, 4,576 households, and 2,804 families residing in the county. Of the residents, 22.0% were under the age of 18 and 19.7% were 65 years of age or older; the median age was 40.0 years. For every 100 females there were 109.5 males, and for every 100 females age 18 and over there were 108.8 males. Of the 4,576 households, 25.1% had children under the age of 18 living with them and 20.4% had a female householder with no spouse or partner present. About 32.2% of all households were made up of individuals and 13.8% had someone living alone who was 65 years of age or older.
2010 census As of the
2010 census, there were 11,200 people, 4,483 households, and 2,814 families in the county. The population density was . There were 5,559 housing units at an average density of . The racial makeup of the county was 96.2% white, 0.7% Asian, 0.7% American Indian, 0.5% black or African American, 0.8% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 1.6% of the population. In terms of ancestry, 50.7% were
German, 20.6% were
Norwegian, 12.4% were
Irish, 6.6% were
English, 6.2% were
Dutch, 5.0% were
Danish, and 5.0% were
American. Of the 4,483 households, 26.7% had children under the age of 18 living with them, 53.0% were married couples living together, 6.8% had a female householder with no husband present, 37.2% were non-families, and 30.9% of all households were made up of individuals. The average household size was 2.30 and the average family size was 2.88. The median age was 39.9 years. The median income for a household in the county was $45,606 and the median income for a family was $57,753. Males had a median income of $36,370 versus $25,898 for females. The per capita income for the county was $22,447. About 6.5% of families and 12.1% of the population were below the
poverty line, including 12.8% of those under age 18 and 8.8% of those age 65 or over. ==Communities==