As of the census of 2000, there were 4,339 people, 1,905 households, and 1,129 families residing in the town of Stowe. The population density was 23.1/km² (59.7/mi²). There were 2,728 housing units at an average density of 14.5/km² (37.5/mi²). The racial makeup of the town was 97.51% White, 0.28% African American, 0.37% Native American, 0.44% Asian, 0.23% from other races, and 1.18% from two or more races. Hispanic or Latino of any race were 1.06% of the population.

There were 1,905 households out of which 26.1% had children under the age of 18 living with them, 50.0% were married couples living together, 6.4% had a female householder with no husband present, and 40.7% were non-families. 29.0% of all households were made up of individuals and 8.9% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.83.

In the town the population was spread out with 21.1% under the age of 18, 6.9% from 18 to 24, 28.3% from 25 to 44, 30.3% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 103.6 males. For every 100 females age 18 and over, there were 101.2 males.

The median income for a household in the town was $52,378, and the median income for a family was $64,700. Males had a median income of $37,788 versus $31,689 for females. The per capita income for the town was $35,474. About 3.7% of families and 6.8% of the population were below the poverty line, including 6.8% of those under age 18 and 5.3% of those age 65 or over.

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