Cities & Towns of Columbia County
As of the census of 2000, there were 43,560 people, 16,375 households, and 12,035 families residing in the county. The population density was 66 people per square mile (26/km²). There were 17,572 housing units at an average density of 27 per square mile (10/km²). The racial makeup of the county was 94.42% White, 0.24% Black or African American, 1.33% Native American, 0.59% Asian, 0.10% Pacific Islander, 0.79% from other races, and 2.53% from two or more races. 2.51% of the population were Hispanic or Latino of any race. 21.2% were of German, 10.8% English, 9.4% American, 9.3% Irish and 5.4% Norwegian ancestry.
There were 16,375 households out of which 34.40% had children under the age of 18 living with them, 60.50% were married couples living together, 8.70% had a female householder with no husband present, and 26.50% were non-families. 21.10% of all households were made up of individuals and 8.10% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.06.
In the county, the population was spread out with 27.30% under the age of 18, 7.00% from 18 to 24, 28.10% from 25 to 44, 26.00% from 45 to 64, and 11.60% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 100.00 males. For every 100 females age 18 and over, there were 98.10 males.
The median income for a household in the county was $45,797, and the median income for a family was $51,381. Males had a median income of $42,227 versus $27,216 for females. The per capita income for the county was $20,078. About 6.70% of families and 9.10% of the population were below the poverty line, including 11.60% of those under age 18 and 7.00% of those age 65 or over.