Regional county municipality
Roussillon
11 municipalities, population 193,874. Region: Montérégie.
Spending per capita$2,504−17% compared with the Québec average
Long-term debt per capita$3,715+25% compared with the Québec average
Average taxes per dwelling, median, 2024$2,925Québec median: $1,941
Sum of each municipality's latest financial report (2024, 2025). Per capita amounts only count municipalities that filed a report. Spending and debt of the RCMs themselves are not included.
Municipalities
Amounts from each municipality's latest financial report.
| Municipality | Population | Taxes per dwelling | Spending per capita | Debt per capita | Report |
|---|---|---|---|---|---|
| Châteauguay | 53,030 | $3,201 | $2,518 | $3,408 | 2025 |
| Saint-Constant | 31,311 | $2,925 | $2,468 | $4,225 | 2024 |
| La Prairie | 27,117 | $2,797 | $2,186 | $2,900 | 2025 |
| Candiac | 24,445 | $3,653 | $2,706 | $4,652 | 2025 |
| Sainte-Catherine | 17,661 | $3,310 | $2,506 | $4,085 | 2025 |
| Mercier | 15,371 | $2,805 | $1,782 | $1,916 | 2024 |
| Delson | 8,541 | $2,490 | $2,703 | $4,176 | 2025 |
| Saint-Philippe | 8,437 | $3,260 | $3,559 | $6,297 | 2025 |
| Saint-Isidore (Roussillon) | 2,895 | $1,589 | $1,634 | $1,528 | 2025 |
| Saint-Mathieu | 2,551 | $2,619 | $5,354 | $2,099 | 2025 |
| Léry | 2,515 | $3,897 | $2,392 | $5,861 | 2024 |
Taxes collected by these municipalities: $348.6M (latest financial reports).
Source: Ministère des Affaires municipales et de l'Habitation, Financial profile and financial reports of municipalities, dataset updated 24 October 2026.