The unincorporated communities of Camp Whitcomb, Monches, and North Lake are in the town and the unincorporated community of Stone Bank is partially in the town.

The pioneer Swedish-American settlement of New Upsala was also at one time located within Merton.

Located in the Lake Country area of Waukesha County.

As of the census[2] [failed verification] of 2000, there were 7,988 people, 2,706 households, and 2,278 families residing in the town.

13.0% of all households were made up of individuals, and 4.7% had someone living alone who was 65 years of age or older.