Oak Grove is a town in Barron County in the U.S. state of Wisconsin.

The village of Haugen is located along the western edge of Oak Grove.

U.S. Route 53 passes through the town, bypassing Haugen and leading south to Rice Lake and north to Spooner.

[4] As of the census[3] of 2000, there were 911 people, 313 households, and 256 families residing in the town.

14.7% of all households were made up of individuals, and 5.4% had someone living alone who was 65 years of age or older.