Warden is a village located in the province of Quebec, part of La Haute-Yamaska Regional County Municipality in the administrative area of Estrie.

The population as of the Canada 2011 Census was 358.

The village is almost completely encircled by the municipality of Shefford with Saint-Joachim-de-Shefford, as its only other border, to the north.

In the 2021 Census of Population conducted by Statistics Canada, Warden had a population of 362 living in 155 of its 163 total private dwellings, a change of -0.3% from its 2016 population of 363.

[5] Population trend:[6] Mother tongue language (2006)[7]