As of the census of 2000, there were 62,779 people, 26,213 households, and 17,457 families residing in the county. The population density was 39 people per square mile (15/km²). There were 29,247 housing units at an average density of 18 per square mile (7/km²). The racial makeup of the county was 91.97% White, 0.31% Black or African American, 2.41% Native American, 0.90% Asian, 0.17% Pacific Islander, 1.06% from other races, and 3.17% from two or more races. 3.40% of the population were Hispanic or Latino of any race. 18.5% were of German, 12.4% English, 11.3% Irish and 10.7% United States or American ancestry according to Census 2000. 96.0% spoke English and 2.5% Spanish as their first language.
There were 26,213 households out of which 26.00% had children under the age of 18 living with them, 52.90% were married couples living together, 9.90% had a female householder with no husband present, and 33.40% were non-families. 27.20% of all households were made up of individuals and 12.30% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.80.
In the county, the population was spread out with 21.90% under the age of 18, 7.10% from 18 to 24, 24.00% from 25 to 44, 27.80% from 45 to 64, and 19.10% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 96.10 males. For every 100 females age 18 and over, there were 93.90 males.
The median income for a household in the county was $31,542, and the median income for a family was $38,040. Males had a median income of $32,509 versus $22,519 for females. The per capita income for the county was $17,547. About 11.10% of families and 15.00% of the population were below the poverty line, including 19.90% of those under age 18 and 9.40% of those age 65 or over.