Census year: 2021 Geographical area: Economic region (ER) Topic: Language — Mother tongue Filter Order by Relevance Name Ascending Name Descending Last Modified Go 2 datasets found 2021. Mother Tongue and First Official Language Spoken (12), Knowledge of Official Languages and Home Language (20), Selected Characteristics (4), Province of Residence 5 years ago (19) for selected geography 25% sample data. IVT (Beyond 20/20) 2021. Mother tongue by knowledge of official languages: Canada, provinces and territories and economic regions 100% data. IVT (Beyond 20/20)