At the 2000 census there were 3,148 people, 1,063 households, and 927 families living in the town.
There were 1,077 housing units at an average density of 33.5 per square mile (12.9/km2).
[1] Of the 1,063 households 47.1% had children under the age of 18 living with them, 80.4% were married couples living together, 4.0% had a female householder with no husband present, and 12.7% were non-families.
About 0.6% of families and 0.4% of the population were below the poverty line, including none of those under the age of 18 or 65 or over.
In the mid-1800s, the Beloit and Madison Railroad was built through the Town of Oregon, later acquired by Chicago and North Western.