Saint-Mathias-sur-Richelieu
Saint-Mathias-sur-Richelieu is a municipality in the Canadian province of Quebec. It is located within the Rouville Regional County Municipality in the Montérégie region on the Richelieu River. The population as of the Canada 2021 Census was 4,544.Demographics
Population
Population trend:
| Census | Population | Change |
| 2021 | 4,544 | 0.3% |
| 2016 | 4,531 | 1.9% |
| 2011 | 4,618 | 2.5% |
| 2006 | 4,506 | 8.6% |
| 2001 | 4,149 | 3.4% |
| 1996 | 4,014 | 13.0% |
| 1991 | 3,553 | 15.9% |
| 1986 | 3,065 | 4.6% |
| 1981 | 2,929 | 49.0% |
| 1976 | 1,966 | 18.3% |
| 1971 | 1,662 | 14.0% |
| 1966 | 1,458 | 38.2% |
| 1961 | 1,055 | 4.2% |
| 1956 | 1,012 | 0.9% |
| 1951 | 1,003 | 46.2% |
| 1941 | 686 | 3.9% |
| 1931 | 660 | 10.2% |
| 1921 | 735 | 1.8% |
| 1911 | 722 | 9.9% |
| 1901 | 657 | 9.4% |
| 1891 | 725 | 15.0% |
| 1881 | 853 | 9.2% |
| 1871 | 939 | 48.7% |
| 1861 | 1,829 | N/A |
Language
Mother tongue language
| Language | Population | Pct |
| French only | 4,285 | 94.5% |
| English only | 100 | 2.2% |
| Both English and French | 45 | 1.0% |
| Other languages | 90 | 2.0% |
- Anchorman and journalist TVA Nouvelles and Le Canale Nouvelles a Quebec-based news network