As of the 2000 United States Census, there were 35,112 people, 14,124 households, and 9,745 families in the county. The population density was 42/sqmi (16/km2). There were 18,115 housing units at an average density of 22/sqmi (8/km2). The racial makeup of the county was 98.96% White, 0.15% Black or African American, 0.09% Native American, 0.35% Asian, 0.04% Pacific Islander, 0.10% from other races, and 0.31% from two or more races. 0.40% of the population were Hispanic or Latino of any race. 54.4% were of German, 21.7% Italian, 16.5% Irish, 8.8% Polish, 7.6% American, 7.4% English, 6.3% Swedish, 3.6% French ancestry.