2020 census
As of the 2020 census, the county had a population of 29,052 and a median age of 47.6 years. 19.9% of residents were under the age of 18 and 25.2% of residents were 65 years of age or older. For every 100 females there were 98.5 males, and for every 100 females age 18 and over there were 96.8 males age 18 and over.[24]
The racial makeup of the county was 91.1% White, 0.6% Black or African American, 0.8% American Indian and Alaska Native, 0.5% Asian, <0.1% Native Hawaiian and Pacific Islander, 1.4% from some other race, and 5.5% from two or more races. Hispanic or Latino residents of any race comprised 4.4% of the population.[25]
40.9% of residents lived in urban areas, while 59.1% lived in rural areas.[26]
There were 12,319 households in the county, of which 24.3% had children under the age of 18 living in them. Of all households, 50.2% were married-couple households, 18.8% were households with a male householder and no spouse or partner present, and 23.6% were households with a female householder and no spouse or partner present. About 29.9% of all households were made up of individuals and 15.3% had someone living alone who was 65 years of age or older.[24]
There were 17,392 housing units, of which 29.2% were vacant. Among occupied housing units, 78.1% were owner-occupied and 21.9% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 11.8%.[24]
2000 census
As of the 2000 United States census, there were 28,274 people, 11,406 households, and 7,881 families in the county. The population density was 57 people per square mile (22 people/km2). There were 16,063 housing units at an average density of 32 per square mile (12/km2). The racial makeup of the county was 95.84% White, 0.73% Black or African American, 0.78% Native American, 0.28% Asian, 0.02% Pacific Islander, 0.82% from other races, and 1.53% from two or more races. 3.01% of the population were Hispanic or Latino of any race. 24.5% were of German, 10.4% Polish, 8.8% English, 8.5% Irish, 7.7% American and 5.0% Swedish ancestry. 96.0% spoke only English, while 2.2% spoke Spanish at home.[27]
There were 11,406 households, out of which 29.70% had children under the age of 18 living with them, 56.40% were married couples living together, 9.20% had a female householder with no husband present, and 30.90% were non-families. 26.50% of all households were made up of individuals, and 11.70% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.92.
The county population contained 24.20% under the age of 18, 7.10% from 18 to 24, 26.20% from 25 to 44, 25.80% from 45 to 64, and 16.80% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 97.50 males. For every 100 females age 18 and over, there were 94.40 males.
The median income for a household in the county was $34,704, and the median income for a family was $41,654. Males had a median income of $33,873 versus $22,616 for females. The per capita income for the county was $17,713. About 8.20% of families and 11.00% of the population were below the poverty line, including 16.50% of those under age 18 and 7.00% of those age 65 or over.