Chichester is located along the north shores of the Ottawa River across from Chapeau on Allumette Island.

Nichabau, also known as Nicabeau or Nichabong, is a scenic hamlet located northwest of Chichester in what used to be referred to as Poupore's Limits.

[5] The Gale and Duberger Map of 1795 already showed the planned "Chicheter" [sic] Township but it was not officially proclaimed until 1849.

The locks were meant to allow steamboat travel on the upper portion of the river but this idea never caught on.

[4] The Culbute Locks (and associated dam) were in use from 1876 until the fall of 1889 when they were "...abandoned to the forces of the river and Nature's wood-rotting agents..."[7] Today, the municipality is predominantly dependent on farming, lumbering, and some summer tourism.