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Chavençon town hall

Chavençon invested more per resident in 2025 than 98% of compared communes

The register of elected officials lists 11 councilors for Chavençon but no mayor. A single list stood in March 2026, BIEN VIVRE A CHAVENCON, and took all 11 seats. Chavençon is part of the Communauté de communes des Sablons.

Next municipal elections

March 2032

Councils are elected for six years; the council elects the mayor.

Register to vote ↗

Throughout this page, the median in Oise and the France median are the median of compared communes (those with an overall grade), each figure its own median. Chavençon has 159 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.

Council members
11
including 3 deputy mayors
Turnout, March 2026
61%
first round · France median 57%
Debt per resident
€1,183
end of 2025 · France median €748
In brief

What stands out about Chavençon’s town hall

A single list

Only one list stood in Chavençon on March 15, 2026: BIEN VIVRE A CHAVENCON. It took all 11 seats; with no rival list, voters could only vote for it, cast a blank ballot or stay at home. 2026 elections ↓

Turnout above most communes

61.3% of registered voters in Chavençon voted on March 15, 2026: higher than in 69% of compared French communes. The median of compared communes in Oise was 54.2%; across France, 57.4%. 2026 elections ↓

More debt per resident than most

Chavençon owed €197K at the end of 2025, €1,183 per resident: higher than in 78% of compared French communes (France median €748). That equals 256% of a year’s running costs. The commune’s money ↓

A big year for investment

Chavençon invested €1,542 per resident (buildings, roads, equipment), 77% of its spending: higher than in 98% of compared French communes (France median €403). Investment swings from year to year with projects. The commune’s money ↓

Results as the Interior ministry published them; accounts from the DGFiP via OFGL. Nothing here is graded.

Who’s in charge

The council the voters chose

Seats as the March 2026 results gave them, one dot a seat.

Municipal council · 11 seatsChavençon municipal councilBIEN VIVRE A CHAVENCON: 11 of 11
  • BIEN VIVRE A CHAVENCON11

As elected in the first round, March 15, 2026.

The list that comes first gets half the seats; the rest are shared in proportion among the lists with 5% or more, the winner included. So the winning list always has a majority.

Source: Interior ministry, 2026 municipal election results (March 15 and 22), subject to corrections and appeals.

Who runs Chavençon

4 authorities share the work

The commune is the tier closest to residents; the intercommunality, the département and the région do the rest.

Commune · the town hallMairie de Chavençon

Births, marriages and deaths, the electoral roll, nursery and primary schools, local roads, planning permission, the municipal police, and what else the council takes on.

11 councilors

Intercommunality · communauté de communesCommunauté de communes des Sablons

The services its communes share: usually waste collection, economic development and planning documents; often water and local buses.

DépartementConseil départemental · Oise

Social aid (RSA, care for older and disabled people, child protection), collèges, the département’s roads, and funding for fire and rescue.

RégionConseil régional · Hauts-de-France

Lycées, regional trains (TER) and coaches, economic development and job training.

Who to ask

Birth, marriage and death certificatesMairie de Chavençon
Registering to voteMairie de Chavençon
Nursery and primary schoolsMairie de Chavençon
Building permits (filed at the town hall)Mairie de Chavençon
Household waste (usually)Communauté de communes des Sablons
Collèges (ages 11 to 15)Conseil départemental · Oise
RSA, care for older people, child protectionConseil départemental · Oise
Lycées (ages 15 to 18)Conseil régional · Hauts-de-France
Regional trains (TER)Conseil régional · Hauts-de-France
ID cards and passportsAny town hall that takes applications, by appointment

The usual split of powers (service-public.fr); an intercommunality’s exact remit varies, so check its website for waste, water and buses.

Membership: COG 2026 (INSEE); intercommunality type: BANATIC, January 2025. What each tier does: service-public.fr.

The council

The 11 members of the Chavençon municipal council

The mayor and 3 deputy mayors first, then the councilors.

NameOfficeSince
Daniel Cartayrade1er adjoint au MaireMarch 21, 2026
Corinne Tuyttens2ème adjoint au MaireMarch 21, 2026
Hervé Vallet3ème adjoint au MaireMarch 21, 2026
Show the full council (11)
NameOfficeSince
Daniel Cartayrade1er adjoint au MaireMarch 21, 2026
Corinne Tuyttens2ème adjoint au MaireMarch 21, 2026
Hervé Vallet3ème adjoint au MaireMarch 21, 2026
Nathalie AllaireConseiller municipalMarch 15, 2026
Jean-Claude AzriaConseiller municipalMarch 15, 2026
Nancy BonhommeConseiller municipalMarch 15, 2026
Patricia CarluConseiller municipalMarch 15, 2026
Denis DuroyaumeConseiller municipalMarch 15, 2026
Mireille LutzConseiller municipalMarch 15, 2026
David MichelConseiller municipalMarch 15, 2026
Eric RosierConseiller municipalMarch 15, 2026

Names and offices as the Interior ministry’s national register of elected officials (RNE) published them on August 11, 2026, written as it writes them. Public role only. Later resignations and replacements aren’t shown.

Source: Interior ministry, national register of elected officials (RNE), August 11, 2026.

2026 elections

How Chavençon voted in March 2026

A single list stood.

Municipal council of Chavençonfirst round · March 15, 2026
BIEN VIVRE A CHAVENCON11 seats100.0%

76 votes cast for a list

Turnout · first round
61%

87 of 142 registered voters in Chavençon voted.

5 blank and 6 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

ChavençonMedian in OiseFrance median
Voted61.3%
0%50%100%

Shares are of the votes cast for a list, leaving out blank and spoilt ballots. Lists in vote order; the colors only tell the lists apart.

2026 elections: same source as Who’s in charge, above.

The commune’s money

Chavençon spends €2,003 per resident a year

The commune’s consolidated accounts: main and annexed budgets, transfers between them removed.

Spending
€2,003
per resident, 2025
€335K in all
Running costs
€461
per resident, 2025
€77K in all
Investment
€1,542
per resident, 2025
€257K in all
Debt
€1,183
per resident, end of 2025
€197K in all

Per resident, 2025 · against compared communes

ChavençonMedian in OiseFrance median
Spending€2,003
Running costs€461
Investment€1,542
Debt€1,183
€0€1,500€3,000

Spending and debt per resident, 2018 to 2025

€0€750€1,500€2,250€3,00020182019202020212022202320242025Spending 2018 : €927Spending 2019 : €503Spending 2020 : €467Spending 2021 : €442Spending 2022 : €487Spending 2023 : €1,401Spending 2024 : €490Spending 2025 : €2,003Debt 2018 : €507Debt 2019 : €467Debt 2020 : €435Debt 2021 : €397Debt 2022 : €1,193Debt 2023 : €1,187Debt 2024 : €1,182Debt 2025 : €1,183DebtSpending

Chavençon owed €197K at the end of 2025, €1,183 per resident, higher than in 78% of compared French communes, equal to 256% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€2,003€1,542€1,183€197K
2024€490€0€1,182€203K
2023€1,401€933€1,187€209K
2022€487€119€1,193€215K
2021€442€78€397€71K
2020€467€84€435€76K
2019€503€82€467€82K
2018€927€546€507€87K

Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.

Towns its size

The 8th highest debt per resident of 41 communes its size

The 40 compared communes nearest in population, debt per resident at the end of 2025.

Chavençon €1,183
WattenMers-les-Bains
€0€1,700€3,400

Lowest: Watten, €1. Highest: Mers-les-Bains, €3,228.

Get involved

Have a say in Chavençon

Register to vote

French citizens register online or at the town hall; citizens of other EU countries can vote in municipal elections too.

service-public.fr ↗
Check your registration

See where you’re registered and which polling station is yours.

service-public.fr ↗
Go to a council meeting

Council meetings are public; the agenda and minutes are posted at the town hall and usually on its website.

service-public.fr ↗
Contact the town hall

Opening hours, address and phone number of the mairie of Chavençon in the public services directory.

lannuaire.service-public.fr ↗
Stand for the council

Who can stand, how lists are formed and the deadlines, from the Interior ministry.

interieur.gouv.fr ↗
How to read these numbers

What this data can and can’t tell you

  • Mayors and councilors. From the Interior ministry’s national register of elected officials (RNE) as published on August 11, 2026: name, office and start dates, nothing else. The register counts a mayor as a councilor too; the page counts each person once. It isn’t a live roll: resignations and replacements after that date aren’t shown, and no party is inferred for any official.
  • How the council is elected. Since March 2026 every commune elects its council from lists (a 2025 law extended list voting to communes under 1,000). A list with more than half the votes in the first round wins; otherwise lists with 10% or more can go on to a second round, where the list ahead wins. It gets half the seats, and the rest are shared in proportion among lists with 5% or more. The council then elects the mayor and the deputy mayors.
  • The label beside a list. The political nuance the prefecture gave the list for the ministry’s results (Divers droite, Union de la gauche…), shown as published. It isn’t the list’s own description; many lists, most in small communes, have none.
  • The commune’s money. OFGL’s consolidated accounts from the DGFiP, 2018 to 2025; 2025 is provisional. Spending and investment leave out loan repayments; running costs are part of spending. Debt is what was owed at the end of the year.
  • Per resident. Divided by the DGFiP’s population for that year (population totale, which counts some people, such as boarding students, in two communes), so it can differ from the census figure elsewhere on the site.
  • The medians. Beside the town’s figure, the median of compared communes in its département and in France (those with an overall grade). A commune’s spending follows its size and its role: one that runs a pool or a theater for the villages around it spends more per resident.

Questions about Chavençon’s town hall

How many councilors does Chavençon have?

The Chavençon municipal council has 11 members, the mayor and 3 deputy mayors included.

Who won the 2026 municipal elections in Chavençon?

Only one list stood: BIEN VIVRE A CHAVENCON, which took all 11 seats.

What was the turnout in Chavençon?

61.3% of registered voters voted in the first round on March 15, 2026; the median of compared French communes was 57.4%.

When are the next municipal elections in Chavençon?

Councils are elected for six years, so the next general municipal elections are due in March 2032. A council can be re-elected sooner if it loses too many members.

How much debt does Chavençon have?

€197K at the end of 2025, €1,183 per resident; the median of compared French communes was €748.

Which intercommunality is Chavençon part of?

Chavençon is part of the Communauté de communes des Sablons, which runs the services its communes share.

Sources: Interior ministry RNE, August 11, 2026 · Interior ministry, municipal results 2026 · OFGL consolidated commune accounts 2018–2025 · INSEE COG 2026 and BANATIC (January 2025) for the intercommunality. Under the Licence Ouverte / Open Licence 2.0 (Etalab).

Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.