It is part of the Wausau, Wisconsin Metropolitan Statistical Area.

Spencer lies about 8 miles (13 km) northwest of Marshfield, along WIS 13.

Then the name was changed to Irene, after the wife of James L. Robinson, a settler who had built a sawmill there.

[8] According to the United States Census Bureau, the village has a total area of 2.01 square miles (5.21 km2), all of it land.

There were 875 housing units at an average density of 435.3 per square mile (168.1/km2).

27.8% of all households were made up of individuals, and 12.4% had someone living alone who was 65 years of age or older.

There were 852 housing units at an average density of 428.5 per square mile (165.3/km2).

28.9% of all households were made up of individuals, and 13.8% had someone living alone who was 65 years of age or older.