It is included in La Haute-Yamaska Regional County Municipality, in the administrative area of Estrie.

The town was first settled in 1793 by Ezekiel Lewis, an English Loyalist supporter who was originally from Marlborough, New Hampshire.

Robinson immediately renamed Lewis Falls to Waterloo after the famous battle in which Napoleon Bonaparte was defeated.

In 1861, Asa Belnap Foster, a prominent Canadian railway builder and politician, brought the railroad to Waterloo which helped expand the village to a thriving town.

Davidson Manufacturing Company, Ltd., a producer of enameled tinware with offices throughout Canada and around the world.

Today, the town is the only Waterloo in the world outside Europe that is predominantly French-speaking, although most residents speak French and English, the remainder are all located in English-speaking regions.

To commemorate this union each of the two Waterloos have in them a statue representing a little boy and a small girl sheltering under a mushroom.

Meubles Roxton ferme SES Portes à Waterloo | TVA Nouvelles.