Town History:
Westbrook was settled in 1648 as Pochoug, an Indian word meaning "at the confluence of two rivers", the Pochoug and the Menunketesuck, by the residents of the Saybrook Colony. Pochoug was the dwelling place of Obed and his tribe until 1676. The community was incorporated as Third or West Parish in 1724 by an Act of the General Assembly.

Westbrook is the birthplace of David Bushnell, the American patriot and inventor of the submarine. It was visited by George Washington in 1776 and by the Marquis de Lafayette in 1824.

Pochoug was renamed Westbrook in 1810 as a town by Act of the Connecticut General Assembly of 1840.