As of the U.S. Census of 2000,[5] there were 37,535
people, 14,293 households, and 10,276 families residing in the county.
The population density was 89 people per square mile (35/km²).
There were 15,040 housing units at an average density of 36 per
square mile (14/km²). The racial makeup of the county was 97.09%
White, 0.19% Black or African American, 0.24% Native American, 0.30%
Asian, 0.01% Pacific Islander, 1.30% from other races, and 0.87%
from two or more races. 4.13% of the population were Hispanic or
Latino of any race. 20.7% were of German, 15.2% Irish, 12.0% Italian,
8.3% Norwegian, 7.4% English and 6.7% American ancestry according
to Census 2000. 95.2% spoke English and 3.7% Spanish as their first
language.
There were 14,293 households out of which 35.30% had children under
the age of 18 living with them, 59.60% were married couples living
together, 8.60% had a female householder with no husband present,
and 28.10% were non-families. 23.50% of all households were made
up of individuals and 9.40% had someone living alone who was 65
years of age or older. The average household size was 2.60 and the
average family size was 3.09.
In the county the population was spread out with 26.60% under the
age of 18, 8.30% from 18 to 24, 30.20% from 25 to 44, 22.50% from
45 to 64, and 12.30% who were 65 years of age or older. The median
age was 36 years. For every 100 females there were 98.90 males.
For every 100 females age 18 and over, there were 97.40 males.
The median income for a home in the county is $51,719, and the
median income for a family was $60,862. Males had a median income
of $46,392 versus $26,487 for females. The per capita income for
the county was $22,591. About 3.20% of families and 4.80% of the
population were below the poverty line, including 5.00% of those
under age 18 and 6.00% of those age 65 or over.
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