FrançaisGuest, Sign inJoin
Chambourcy Vue d'AchèresPhoto: ℍenry Salomé · CC BY-SA 3.0
Achères town hall

Achères invested less per resident in 2025 than 87% of compared communes

François Dazelle has been mayor of Achères since March 30, 2026, elected by the 33 members of the municipal council. At the March 2026 municipal elections, Unis pour Achères 2026 won 26 of the 35 seats in the second round on March 22, 2026, with 48.5% of the votes. Achères is part of the Communauté urbaine Grand Paris Seine et Oise.

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 Yvelines and the France median are the median of compared communes (those with an overall grade), each figure its own median.

Mayor
François Dazelle
since March 30, 2026
Council members
33
including 10 deputy mayors
Turnout, March 2026
47%
first round · France median 57%
Debt per resident
€974
end of 2025 · France median €748
In brief

What stands out about Achères’s town hall

Decided in a second round

No list won half the votes in the first round, when 3 lists stood. In the second round on March 22, 2026, Unis pour Achères 2026 came first with 48.5% and took 26 of the 35 seats; the other lists share the remaining 9. Who’s in charge ↓

Turnout below most communes

46.9% of registered voters in Achères voted on March 15, 2026: lower than in 85% of compared French communes. The median of compared communes in Yvelines was 56.2%; across France, 57.4%. 2026 elections ↓

More debt per resident than most

Achères owed €21.2M at the end of 2025, €974 per resident: higher than in 67% of compared French communes (France median €748). That equals 73% of a year’s running costs. The commune’s money ↓

Little investment

Achères invested €195 per resident (buildings, roads, equipment), 13% of its spending: lower than in 87% 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 · 35 seatsAchères municipal councilUnis pour Achères 2026: 26 of 35
Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026Unis pour Achères 2026AGIR ENSEMBLE POUR ACHÈRESAGIR ENSEMBLE POUR ACHÈRESAGIR ENSEMBLE POUR ACHÈRESAGIR ENSEMBLE POUR ACHÈRESAGIR ENSEMBLE POUR ACHÈRESAchères Ville de CoeurAchères Ville de CoeurAchères Ville de CoeurAchères Ville de Coeur35seats
  • Unis pour Achères 2026265 community seats
  • AGIR ENSEMBLE POUR ACHÈRES51 community seat
  • Achères Ville de Coeur40 community seats

As elected in the second round, March 22, 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. The same vote gave Achères 6 seats on the council of the Communauté urbaine Grand Paris Seine et Oise (community seats).

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

Who runs Achères

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 Achères

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.

Mayor: François Dazelle · 33 councilors

Intercommunality · communauté urbaineCommunauté urbaine Grand Paris Seine et Oise

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

DépartementConseil départemental · Yvelines

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

RégionConseil régional · Île-de-France

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

Who to ask

Birth, marriage and death certificatesMairie de Achères
Registering to voteMairie de Achères
Nursery and primary schoolsMairie de Achères
Building permits (filed at the town hall)Mairie de Achères
Household waste (usually)Communauté urbaine Grand Paris Seine et Oise
Collèges (ages 11 to 15)Conseil départemental · Yvelines
RSA, care for older people, child protectionConseil départemental · Yvelines
Lycées (ages 15 to 18)Conseil régional · Île-de-France
Regional trains (TER)Conseil régional · Île-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.

Who represents Achères

From the mayor to the intercommunality

The officials as the Interior ministry’s register lists them, and the council by list.

  1. 1
    Mayorsince March 30, 2026
    François Dazelle
  2. 2
    Deputy mayors10 adjoints, elected by the council
    Camille VaurPatrick MetoisKatell LandierThierry HerrmannCéline ChassinBaptiste KhunAnnie Debray-GyrardAbdelyamin Derradji+2 more
  3. 3
    Achères municipal council35 seats by list
    Unis pour Achères 2026 26 · AGIR ENSEMBLE POUR ACHÈRES 5 · Achères Ville de Coeur 4
  4. 4
    Communauté urbaine Grand Paris Seine et OiseAchères holds 6 seats
    Community councilors are drawn from the council lists in the same vote.

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

The council

The 33 members of the Achères municipal council

The mayor and 10 deputy mayors first, then the councilors.

NameOfficeSince
François DazelleMaireMarch 30, 2026
Camille Vaur1er adjoint au MaireMarch 30, 2026
Patrick Metois2ème adjoint au MaireMarch 30, 2026
Katell Landier3ème adjoint au MaireMarch 30, 2026
Thierry Herrmann4ème adjoint au MaireMarch 30, 2026
Céline Chassin5ème adjoint au MaireMarch 30, 2026
Baptiste Khun6ème adjoint au MaireMarch 30, 2026
Annie Debray-Gyrard7ème adjoint au MaireMarch 30, 2026
Abdelyamin Derradji8ème adjoint au MaireMarch 30, 2026
Sarah Sabourin9ème adjoint au MaireMarch 30, 2026
Jean-François Demarez10ème adjoint au MaireMarch 30, 2026
Show the full council (33)
NameOfficeSince
François DazelleMaireMarch 30, 2026
Camille Vaur1er adjoint au MaireMarch 30, 2026
Patrick Metois2ème adjoint au MaireMarch 30, 2026
Katell Landier3ème adjoint au MaireMarch 30, 2026
Thierry Herrmann4ème adjoint au MaireMarch 30, 2026
Céline Chassin5ème adjoint au MaireMarch 30, 2026
Baptiste Khun6ème adjoint au MaireMarch 30, 2026
Annie Debray-Gyrard7ème adjoint au MaireMarch 30, 2026
Abdelyamin Derradji8ème adjoint au MaireMarch 30, 2026
Sarah Sabourin9ème adjoint au MaireMarch 30, 2026
Jean-François Demarez10ème adjoint au MaireMarch 30, 2026
Theanmolee ArunakiridasConseiller municipalMarch 22, 2026
Evelyne BeaudichonConseiller municipalMarch 22, 2026
Gisèle BlancConseiller municipalMarch 22, 2026
Clarisse BonaroConseiller municipalMarch 22, 2026
Marie-Ange BonineConseiller municipalMarch 22, 2026
Kamel BouchakourConseiller municipalMarch 22, 2026
Maeva CruzConseiller municipalMarch 22, 2026
Martin DessaignesConseiller municipalMarch 22, 2026
Laetitia Farhat-BernardConseiller municipalMarch 22, 2026
Yves FuzetConseiller municipalMarch 22, 2026
Suzanne JaunetConseiller municipalMarch 22, 2026
Romain LasserreConseiller municipalMarch 22, 2026
Carlos LopesConseiller municipalMarch 22, 2026
Stéphane PichardConseiller municipalMarch 22, 2026
Ingrid RousselConseiller municipalMarch 22, 2026
Grégory SanchezConseiller municipalMarch 22, 2026
Catherine ScagniConseiller municipalMarch 22, 2026
Jacques TanguyConseiller municipalMarch 22, 2026
Roger TennerelConseiller municipalMarch 22, 2026
Louis-Armand VireyConseiller municipalMarch 22, 2026
Fatiha YahiaouiConseiller municipalMarch 22, 2026
Abdelkader ZyanConseiller municipalMarch 22, 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.

The council: same source as Who represents Achères, above.

2026 elections

How Achères voted in March 2026

3 lists stood in the first round; none won half the votes, so a second round followed.

Municipal council of Achèressecond round · March 22, 2026
Unis pour Achères 2026led by François Dazelle · ministry label: Miscellaneous center · 26 seats48.5%
AGIR ENSEMBLE POUR ACHÈRESled by Louis-Armand Virey · ministry label: Miscellaneous left · 5 seats28.7%
Achères Ville de Coeurled by Carlos Lopes · ministry label: Miscellaneous · 4 seats22.8%

6,127 votes cast for a list

Turnout · second round
46%

6,293 of 13,627 registered voters in Achères voted.

83 blank and 83 spoilt ballots, not counted in the shares.

Municipal council of Achèresfirst round · March 15, 2026
Unis pour Achères 2026ministry label: Miscellaneous center45.9%
Achères Ville de Coeurministry label: Miscellaneous27.1%
AGIR ENSEMBLE POUR ACHÈRESministry label: Miscellaneous left27.0%

6,176 votes cast for a list · no seats given out: a second round followed

Turnout · first round
47%

6,382 of 13,618 registered voters in Achères voted.

123 blank and 83 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

AchèresMedian in YvelinesFrance median
Voted46.9%
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

Achères spends €1,534 per resident a year

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

Spending
€1,534
per resident, 2025
€33.4M in all
Running costs
€1,338
per resident, 2025
€29.2M in all
Investment
€195
per resident, 2025
€4.3M in all
Debt
€974
per resident, end of 2025
€21.2M in all

Per resident, 2025 · against compared communes

AchèresMedian in YvelinesFrance median
Spending€1,534
Running costs€1,338
Investment€195
Debt€974
€0€1,000€2,000

Spending and debt per resident, 2018 to 2025

€0€500€1,000€1,500€2,00020182019202020212022202320242025Spending 2018 : €1,473Spending 2019 : €1,440Spending 2020 : €1,379Spending 2021 : €1,362Spending 2022 : €1,692Spending 2023 : €1,798Spending 2024 : €1,672Spending 2025 : €1,534Debt 2018 : €1,139Debt 2019 : €1,073Debt 2020 : €1,076Debt 2021 : €1,039Debt 2022 : €1,148Debt 2023 : €1,163Debt 2024 : €1,011Debt 2025 : €974DebtSpending

Achères owed €21.2M at the end of 2025, €974 per resident, higher than in 67% of compared French communes, equal to 73% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€1,534€195€974€21.2M
2024€1,672€317€1,011€21.7M
2023€1,798€450€1,163€25.4M
2022€1,692€418€1,148€24.9M
2021€1,362€132€1,039€22.1M
2020€1,379€167€1,076€22.8M
2019€1,440€151€1,073€22.5M
2018€1,473€205€1,139€24.2M

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

Towns its size

The 17th highest debt per resident of 41 communes its size

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

Achères €974
SèvresDax
€0€1,050€2,100

Lowest: Sèvres, €121. Highest: Dax, €1,974.

Get involved

Have a say in Achères

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 Achères 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 Achères’s town hall

Who is the mayor of Achères?

François Dazelle, mayor since March 30, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).

How many councilors does Achères have?

The Achères municipal council has 33 members, the mayor and 10 deputy mayors included.

Who won the 2026 municipal elections in Achères?

Unis pour Achères 2026, in the second round on March 22, 2026, with 48.5% of the votes; it holds 26 of the 35 seats.

What was the turnout in Achères?

46.9% 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 Achères?

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 Achères have?

€21.2M at the end of 2025, €974 per resident; the median of compared French communes was €748.

Which intercommunality is Achères part of?

Achères is part of the Communauté urbaine Grand Paris Seine et Oise, 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.