Star Prairie is a village in St. Croix County in the U.S. state of Wisconsin.

[6] According to the United States Census Bureau, the village has a total area of 2.16 square miles (5.59 km2), all of it land.

[7] The Apple River flows through the center of town, where it is joined by a small stream called Saratoga Spring.

There were 248 housing units at an average density of 114.8 per square mile (44.3/km2).

The racial makup of the village was 96.6% White, 1.4% Native American, 0.9% Asian, and 1.1% from two or more races.

There were 215 housing units at an average density of 102.4 per square mile (39.5/km2).

The racial makup of the village was 97.74% White, 0.17% Black or African American and 2.09% Asian.