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Cassen town hall

In Cassen, turnout beat 94% of compared French communes

Didier Gaugeacq has been mayor of Cassen since March 21, 2026, elected by the 15 members of the municipal council. A single list stood in March 2026, ENSEMBLE POUR CASSEN, and took all 15 seats. Cassen is part of the Communauté de communes Terres de Chalosse.

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 Landes and the France median are the median of compared communes (those with an overall grade), each figure its own median. Cassen has 624 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.

Mayor
Didier Gaugeacq
since March 21, 2026
Council members
15
including 3 deputy mayors
Turnout, March 2026
69%
first round · France median 57%
Debt per resident
€1,330
end of 2025 · France median €748
In brief

What stands out about Cassen’s town hall

A single list

Only one list stood in Cassen on March 15, 2026: ENSEMBLE POUR CASSEN. It took all 15 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

68.8% of registered voters in Cassen voted on March 15, 2026: higher than in 94% of compared French communes. The median of compared communes in Landes was 64.3%; across France, 57.4%. 2026 elections ↓

More debt per resident than most

Cassen owed €818K at the end of 2025, €1,330 per resident: higher than in 83% of compared French communes (France median €748). That equals 171% of a year’s running costs. The commune’s money ↓

A big year for investment

Cassen invested €689 per resident (buildings, roads, equipment), 47% of its spending: higher than in 82% 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 · 15 seatsCassen municipal councilENSEMBLE POUR CASSEN: 15 of 15
  • ENSEMBLE POUR CASSEN15

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 Cassen

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 Cassen

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: Didier Gaugeacq · 15 councilors

Intercommunality · communauté de communesCommunauté de communes Terres de Chalosse

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

DépartementConseil départemental · Landes

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

RégionConseil régional · Nouvelle-Aquitaine

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

Who to ask

Birth, marriage and death certificatesMairie de Cassen
Registering to voteMairie de Cassen
Nursery and primary schoolsMairie de Cassen
Building permits (filed at the town hall)Mairie de Cassen
Household waste (usually)Communauté de communes Terres de Chalosse
Collèges (ages 11 to 15)Conseil départemental · Landes
RSA, care for older people, child protectionConseil départemental · Landes
Lycées (ages 15 to 18)Conseil régional · Nouvelle-Aquitaine
Regional trains (TER)Conseil régional · Nouvelle-Aquitaine
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 Cassen

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 21, 2026
    Didier Gaugeacq
  2. 2
    Deputy mayors3 adjoints, elected by the council
    Daniel BrivadySylvia LagardeAndré Morlaës
  3. 3
    Cassen municipal council15 seats by list
    ENSEMBLE POUR CASSEN 15

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

The council

The 15 members of the Cassen municipal council

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

NameOfficeSince
Didier GaugeacqMaireMarch 21, 2026
Daniel Brivady1er adjoint au MaireMarch 21, 2026
Sylvia Lagarde2ème adjoint au MaireMarch 21, 2026
André Morlaës3ème adjoint au MaireMarch 21, 2026
Show the full council (15)
NameOfficeSince
Didier GaugeacqMaireMarch 21, 2026
Daniel Brivady1er adjoint au MaireMarch 21, 2026
Sylvia Lagarde2ème adjoint au MaireMarch 21, 2026
André Morlaës3ème adjoint au MaireMarch 21, 2026
Charlène AuthierConseiller municipalMarch 15, 2026
Aurelie BellamyConseiller municipalMarch 15, 2026
François BroussyConseiller municipalMarch 15, 2026
Cyrielle CharlatConseiller municipalMarch 15, 2026
Frédéric DanthonnyConseiller municipalMarch 15, 2026
Catherine DaveratConseiller municipalMarch 15, 2026
Vitalie GavrilutaConseiller municipalMarch 15, 2026
Patrick LagardeConseiller municipalMarch 15, 2026
Amandine PussacqConseiller municipalMarch 15, 2026
Claude SamsonConseiller municipalMarch 15, 2026
Marlène SuzanConseiller 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.

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

2026 elections

How Cassen voted in March 2026

A single list stood.

Municipal council of Cassenfirst round · March 15, 2026
ENSEMBLE POUR CASSEN15 seats100.0%

266 votes cast for a list

Turnout · first round
69%

304 of 442 registered voters in Cassen voted.

10 blank and 28 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

CassenMedian in LandesFrance median
Voted68.8%
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

Cassen spends €1,466 per resident a year

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

Spending
€1,466
per resident, 2025
€901K in all
Running costs
€777
per resident, 2025
€478K in all
Investment
€689
per resident, 2025
€424K in all
Debt
€1,330
per resident, end of 2025
€818K in all

Per resident, 2025 · against compared communes

CassenMedian in LandesFrance median
Spending€1,466
Running costs€777
Investment€689
Debt€1,330
€0€1,500€3,000

Spending and debt per resident, 2018 to 2025

€0€500€1,000€1,500€2,00020182019202020212022202320242025Spending 2018 : €668Spending 2019 : €615Spending 2020 : €761Spending 2021 : €1,109Spending 2022 : €1,310Spending 2023 : €1,485Spending 2024 : €1,600Spending 2025 : €1,466Debt 2018 : €473Debt 2019 : €549Debt 2020 : €465Debt 2021 : €718Debt 2022 : €1,067Debt 2023 : €1,605Debt 2024 : €1,708Debt 2025 : €1,330DebtSpending

Cassen owed €818K at the end of 2025, €1,330 per resident, higher than in 83% of compared French communes, equal to 171% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€1,466€689€1,330€818K
2024€1,600€720€1,708€1M
2023€1,485€453€1,605€966K
2022€1,310€291€1,067€643K
2021€1,109€447€718€427K
2020€761€163€465€276K
2019€615€31€549€327K
2018€668€57€473€283K

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

Towns its size

The 7th highest debt per resident of 41 communes its size

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

Cassen €1,330
WattenMers-les-Bains
€0€1,700€3,400

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

Get involved

Have a say in Cassen

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 Cassen 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 Cassen’s town hall

Who is the mayor of Cassen?

Didier Gaugeacq, mayor since March 21, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).

How many councilors does Cassen have?

The Cassen municipal council has 15 members, the mayor and 3 deputy mayors included.

Who won the 2026 municipal elections in Cassen?

Only one list stood: ENSEMBLE POUR CASSEN, which took all 15 seats.

What was the turnout in Cassen?

68.8% 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 Cassen?

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 Cassen have?

€818K at the end of 2025, €1,330 per resident; the median of compared French communes was €748.

Which intercommunality is Cassen part of?

Cassen is part of the Communauté de communes Terres de Chalosse, 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.