Prairie Farm is a town in Barron County in the U.S. state of Wisconsin.
According to the United States Census Bureau, the town has a total area of 34.5 square miles (89.3 km2), all of it land.
The racial makeup of the town was 99% White, 0.5% Asian, and 0.5% from two or more races.
14.7% of all households were made up of individuals, and 6.4% had someone living alone who was 65 years of age or older.
None of the families and 2.7% of the population were living below the poverty line, including no under eighteens and 18.6% of those over 64.