[5] Population centres within the municipality include: Klukeville, Lauréat, Omer, Otter Lake, and Sandy Creek.

Since then, Philemon Wright, pioneer of the logging industry in Ottawa, operated a wood depot at Otter Lake.

While Clapham Township was not officially established until 1920, it was already planned in the second half of the 19th century and named after a village north of Bedford, England.

[1] Otter Lake forms part of the federal electoral district of Pontiac and has been represented by Sophie Chatel of the Liberal Party since 2021.

Provincially, Otter Lake is part of the Pontiac electoral district and is represented by André Fortin of the Quebec Liberal Party since 2014.