[5] The township contains two historic cemeteries: Barrington Center and Union.

As of the 2020 census[1] there were 16,514 people, 5,456 households, and 4,718 families residing in the township.

The racial makeup of the township was 69.20% White, 0.85% African American, 0.09% Native American, 22.83% Asian, 0.00% Pacific Islander, 1.68% from other races, and 5.34% from two or more races.

There were 5,456 households, out of which 39.40% had children under the age of 18 living with them, 73.20% were married couples living together, 10.85% had a female householder with no spouse present, and 13.53% were non-families.

11.90% of all households were made up of individuals, and 6.20% had someone living alone who was 65 years of age or older.