[1] The township contains New Trier High School, but the borders of the school district do not line up exactly with the borders of the township.

The township covers approximately 16 square miles (41 km2).

The township comprises the villages of Wilmette, Kenilworth, Winnetka, Glencoe, and portions of Glenview and Northfield.

There is also a small unincorporated area near Winnetka known as Indian Hill because of the nearby country club of the same name.

69.2% of households were married couples living together, 19.5% had a female householder with no spouse present, 10.3% had a male householder with no spouse present, and 1.0% were cohabiting couples living together.