Communauté de communes Les Portes de l'Ile de France · Yvelines · Île-de-France · 5,114 residents · Mayor: Cyril Samson
Bonnières-sur-Seine
€6.6 million spent in 2025.
€1,300 per resident · Towns of the same size: €1,532
Bonnières-sur-Seine’s spending by policy area
Click a line to see what it pays for
The 6 other items (9%)
Source: the town’s 2025 accounts (DGFiP), by public policy.
Where the money goes
The €6.6M spent in 2025, by who receives it.
Source: the town’s 2025 accounts (DGFiP).
- Social welfare centre (CCAS)€122k
- Associations and other private bodies€42k
The name of each recipient is in the annexes of the town’s accounts (required from 3,500 residents), not in the national open data.
Investment and works
€1.2M of capital spending in 2025 (building, renovation, equipment), €237 per resident. Towns of the same size: €372.
Click a policy to see its works and building sites
Source: the town’s 2025 accounts (DGFiP), by public policy.
Revenue and financing
Revenue: €5.9M · spending: €6.7M.
Source: the town’s 2025 accounts (DGFiP).
Debt and taxation
Accounts 2025, main budget (excluding annex budgets such as water), except debt and savings: main and annex budgets together (OFGL consolidated accounts). Per resident: amount divided by the total population (Insee, in force in the year of the accounts). Sources: DGFiP, OFGL. “Towns of the same size”: median of the 1,216 towns of 5,000 to 10,000 inhabitants.
Who spends for the residents of Bonnières-sur-Seine
Spending per resident in 2025 of each public body the town belongs to, and what each one pays for.
- TownBonnières-sur-SeinePrimary schools, canteens, local streets, civil registry€1,300 per resident
- IntercommunalityCommunauté de communes Les Portes de l'Ile de FranceWaste, water, urban transport, economic development€343 per resident
- DépartementYvelinesMinimum income, elderly and disability care, middle schools, county roads€1,057 per resident
- RegionÎle-de-FranceHigh schools, regional trains, training, business support€465 per resident
Each amount is what the body spends per resident, from its accounts (DGFiP). Do not add them up: part of the money passes from one body to another.
Understanding these figures
Running costs and works: what is the difference?
Running costs are each year’s spending: wages, energy, upkeep, grants. Works create or renovate something that lasts: a school, a road, a sports hall.
How is the comparison with towns of the same size made?
The towns of 5,000 to 10,000 inhabitants are ranked from lowest to highest value; the median is the value in the middle. A value above or below the median is not a judgement: it depends on the area, the population and the powers held by the intercommunality.
Where do these figures come from?
From the town’s accounts kept by the public accountant (DGFiP), the local finance observatory (OFGL) and public procurement data. Qipu changes no amount.
Elected officials and staff of Bonnières-sur-Seine: to report a figure to correct or add context, write to Qipu.
Compare with Saint-Nom-la-Bretèche or with another town:
Page published by Qipu, independent of the town · Sources and method
DGFiP balance-sheet accounts (nature axis) · OFGL (consolidated towns base) · National register of elected officials, archived versions 2020-2025 · 2025. The method · See the source