Official-language knowledge, first official language spoken, home use, and workplace use from Statistics Canada. Filters update the charts from the precomputed extract — the browser never downloads the raw Census cube.
Data source. Statistics Canada · 15-10-0004-01 (+ 15-10-0037 for immigrant status) · Period: 1951–2021 · Pipeline updated: 2026-08-16. Open Government Licence – Canada. Figures are not Statistics Canada endorsements of this app.