English, French and non-official mother tongue, Saint-Germain-de-Grantham (Municipalité), 2016 to 2021
| Languages | Years | |
|---|---|---|
| 2016 | 2021 | |
| English only | 40 | 50 |
| French only | 4,820 | 4,765 |
| Single non-official language | 25 | 70 |
| Multiple mother tongues | 30 | 30 |
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