Yvelines · Île-de-France · 18,431 residents
How much does Carrières-sous-Poissy spend?
Mayor: Eddie Aït since March 2026 · 35 town councillors
What the money pays for in Carrières-sous-Poissy
The 2024 operating expenditure — investment aside — sorted this time by public policy rather than by type of spending.
Carrières-sous-Poissy spends 22 % more per inhabitant than towns of 10,000 to 20,000 inhabitants.
Allocated to a public policyShare of budget against towns of the same size26 M€
“elsewhere”: what towns the same size usually devoteCarrières-sous-Poissy devotes a larger share of its budgeta smaller share
- General administration11.4M€44 %elsewhere: 32%more than elsewhere (32%)
- Culture, youth and sports4.9M€19 %elsewhere: 19%same as elsewhere (19%)
- Education and training4.6M€18 %elsewhere: 18%same as elsewhere (18%)
- Health and social action3.3M€13 %elsewhere: 9%more than elsewhere (9%)
- Security and public health944k€4 %elsewhere: 4%same as elsewhere (4%)
- Regional planning and housing483k€2 %elsewhere: 8%less than elsewhere (8%)
- Transport146k€1 %elsewhere: 3%less than elsewhere (3%)
- Environment91k€0 %elsewhere: 1%less than elsewhere (1%)
- Economic action65k€0 %elsewhere: 0%same as elsewhere (0%)
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.
Spending30.3 M€
Charges de personnel15.8M€52 %Achats et charges externes7.5M€25 %Charges de gestion couranteof which 369 k€ of grants to associations and private bodies1.4M€5 %Charges financières759k€3 %Impôts et taxes (charges)527k€2 %Revenue31 M€
Property tax in Carrières-sous-Poissy
municipal rate on buildings, set in 2025 · unchanged since 2023
Median for towns of its size band: 41.8%.
In 2024, Carrières-sous-Poissy collected 15.9 M€ in property and residence taxes, or 51% of its revenue.
What the town builds
invested in 2024 · €269 per inhabitant
Of which 2.8 M€ of equipment. That is −21.8 % 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 · 22.8 M€ in total
Towns of its size: €778 per inhabitant · −36.9 % 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 2026 · 15 contracts
Top supplier: Gaia Ingenierie, 9.4 M€, pour la construction dun groupe scolaire a Carrières-sous-Poissy (78)
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, 2020, 2021, 2023, 2024, 2025, 2026. Years set aside, amounts out of scale: 2022.
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.