| Index | Saint-Mathieu-de-Rioux | Quebec | National |
| Median home price | n/a | $492,735 | $659,395 |
| Median rent asked | n/a | $1,958 | $2,146 |
| Avg. people per household | 2.2 | 2.3 | 2.5 |
| Owner occupied households | 95.4% | 61.7% | 67.6% |
| Renter occupied households | 4.6% | 38.1% | 32.0% |
| Population | Home Price | National Avg. | |
| Saint-Éloi, QC | 278 | n/a | |
| Saint-Guy, QC | 45 | n/a | |
| Trois-Pistoles, QC | 3,105 | n/a | |
| Saint-Médard, QC | 200 | n/a | |
| Saint-Paul-de-la-Croix, QC | 294 | n/a | |
| Saint-Mathieu-de-Rioux, QC | 627 | n/a |
| Population | Home Price | National Avg. | |
| Sarnia 45, ON | 627 | n/a | |
| Beauval, SK | 628 | n/a | |
| Matapédia, QC | 628 | n/a | |
| Rouleau, SK | 626 | n/a | |
| English River 21, ON | 626 | n/a | |
| Saint-Mathieu-de-Rioux, QC | 627 | n/a |