The Town[3] of Harrison is located in the northeast corner of Marathon County, Wisconsin, in the United States.

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

The unincorporated community of Hogarty is also located partially in the town.

There were 155 housing units at an average density of 4.2 per square mile (1.6/km2).

[2] Of the 143 households 39.9% had children under the age of 18 living with them, 68.5% were married couples living together, 5.6% had a female householder with no husband present, and 17.5% were non-families.