Essonne · Île-de-France · 3,872 residents
How much does Boissy-sous-Saint-Yon spend?
Mayor: Jean-Marc Pichon since March 2026 · 27 town councillors
In a town this size, a single building project is enough to swing the total from one year to the next.
In a town this size, a single building project is enough to swing the total from one year to the next.
What the money pays for in Boissy-sous-Saint-Yon
The 2024 operating expenditure — investment aside — sorted this time by public policy rather than by type of spending.
Boissy-sous-Saint-Yon spends 24 % less per inhabitant than towns of 3,500 to 5,000 inhabitants.
Allocated to a public policyShare of budget against towns of the same size2.6 M€
“elsewhere”: what towns the same size usually devoteBoissy-sous-Saint-Yon devotes a larger share of its budgeta smaller share
- General administration1.3M€48 %elsewhere: 42%more than elsewhere (42%)
- Security and public health628k€24 %elsewhere: 3%more than elsewhere (3%)
- Education and training429k€16 %elsewhere: 18%less than elsewhere (18%)
- Culture, youth and sports202k€8 %elsewhere: 12%less than elsewhere (12%)
- Transport68k€3 %elsewhere: 3%same as elsewhere (3%)
- Health and social action10k€0 %elsewhere: 3%less than elsewhere (3%)
- Environment6k€0 %elsewhere: 1%same as elsewhere (1%)
- Economic action682€0 %elsewhere: 0%same as elsewhere (0%)
- Regional planning and housing166€0 %elsewhere: 10%less than elsewhere (10%)
Shares are computed on the allocated amount, excluding transfers. “Elsewhere”: the median share of towns the same size — half devote more, half less. Source: DGFiP accounting balances.
Spending and revenue
What the town pays for: staff, purchases, debt. 2019–2024 trend on each line.
Spending5.5 M€
Charges de personnel1.6M€30 %Achats et charges externes857k€16 %Charges de gestion couranteof which 73 k€ of grants to associations and private bodies188k€3 %Impôts et taxes (charges)38k€1 %Revenue6.2 M€
Property tax in Boissy-sous-Saint-Yon
municipal rate on buildings, set in 2025 · unchanged since 2023
Median for towns of its size band: 39.29%.
In 2024, Boissy-sous-Saint-Yon collected 2.1 M€ in property and residence taxes, or 34% of its revenue.
What the town builds
invested in 2024 · €710 per inhabitant
Of which 2.6 M€ of equipment. That is +167.1 % compared with 2023.
Investment section of the town’s accounts. The rest is funded by the savings made on day-to-day operations.
Debt
per inhabitant at end of 2024 · 970 k€ in total
Towns of its size: €691 per inhabitant · +83.8 % per inhabitant since 2018
Outstanding debt and gross savings: OFGL, main budget. The number of years is the debt-repayment capacity, debt divided by gross savings.
What the town buys
in public contracts awarded in 2024 · 5 contracts
Top supplier: Schneider et Compagnie, 335 k€, restructuration et extension du Pôle Scolaire de Boissy-sous-Saint-Yon Lot 13 Plomberie-Chauffage-Ventilation
Marchés de plus de 40 000 € HT déclarés à la notification (DECP) : montants des contrats, pas les paiements. Les plus petits marchés ne sont pas publiés ; les montants manifestement erronés sont écartés. Years published by the town: 2019, 2022, 2023, 2024.
Compare with another town
Per inhabitant, 2024 accounts, OFGL. Towns of the same département, by size. A town above or below is not better or worse run. Property-tax rate: municipal share only, excluding the inter-municipal body and additional levies, source REI DGFiP.