Les installations de compostage de tout le Canada traitent 11 p. 100 environ des déchets organiques produits chaque année, soit près de 700 000 tonnes, mais on estime qu'elles pourraient en composter quelque 50 p. 100. Environ un million de ménages canadiens transforment aussi 200 000 tonnes de déchets de cuisine et de jardin en compost.
Composting facilities across Canada process almost 700,000 tonnes or about 11 per cent of the organic waste produced each year, but it is believed that about half of the total waste stream could be composted. About a million Canadian households also divert 200,000 tonnes of their kitchen and yard wastes through back yard composting.