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Ondres town hall

In Ondres, turnout beat 95% of compared French communes

Patrick de Casanove has been mayor of Ondres since March 28, 2026, elected by the 29 members of the municipal council. At the March 2026 municipal elections, ESPOIR ET SERENITE POUR LES ONDRAIS won 23 of the 29 seats in the second round on March 22, 2026, with 57.3% of the votes. Ondres is part of the Communauté de communes du Seignanx.

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.

Mayor
Patrick de Casanove
since March 28, 2026
Council members
29
including 8 deputy mayors
Turnout, March 2026
69%
first round · France median 57%
Debt per resident
€1,215
end of 2025 · France median €748
In brief

What stands out about Ondres’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, ESPOIR ET SERENITE POUR LES ONDRAIS came first with 57.3% and took 23 of the 29 seats; the other lists share the remaining 6. Who’s in charge ↓

Turnout above most communes

69.1% of registered voters in Ondres voted on March 15, 2026: higher than in 95% 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

Ondres owed €7.6M at the end of 2025, €1,215 per resident: higher than in 79% of compared French communes (France median €748). That equals 91% of a year’s running costs. The commune’s money ↓

Little investment

Ondres invested €249 per resident (buildings, roads, equipment), 16% of its spending: lower than in 77% 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 · 29 seatsOndres municipal councilESPOIR ET SERENITE POUR LES ONDRAIS: 23 of 29
ESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISESPOIR ET SERENITE POUR LES ONDRAISOndres UnieOndres UnieOndres UnieOndres UnieOndres UnieOndres Unie29seats
  • ESPOIR ET SERENITE POUR LES ONDRAIS236 community seats
  • Ondres Unie61 community seat

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 Ondres 7 seats on the council of the Communauté de communes du Seignanx (community seats).

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

Who runs Ondres

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 Ondres

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: Patrick de Casanove · 29 councilors

Intercommunality · communauté de communesCommunauté de communes du Seignanx

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 Ondres
Registering to voteMairie de Ondres
Nursery and primary schoolsMairie de Ondres
Building permits (filed at the town hall)Mairie de Ondres
Household waste (usually)Communauté de communes du Seignanx
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 Ondres

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 28, 2026
    Patrick de Casanove
  2. 2
    Deputy mayors8 adjoints, elected by the council
    Martine SeguiJean-Guy RenonCyprine LavaudGuillaume de BlignièresAnnabella LesageYannick SaubesSylviane LeclouFranck Sapin
  3. 3
    Ondres municipal council29 seats by list
    ESPOIR ET SERENITE POUR LES ONDRAIS 23 · Ondres Unie 6
  4. 4
    Communauté de communes du SeignanxOndres holds 7 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 29 members of the Ondres municipal council

The mayor and 8 deputy mayors first, then the councilors.

NameOfficeSince
Patrick de CasanoveMaireMarch 28, 2026
Martine Segui1er adjoint au MaireMarch 28, 2026
Jean-Guy Renon2ème adjoint au MaireMarch 28, 2026
Cyprine Lavaud3ème adjoint au MaireMarch 28, 2026
Guillaume de Blignières4ème adjoint au MaireMarch 28, 2026
Annabella Lesage5ème adjoint au MaireMarch 28, 2026
Yannick Saubes6ème adjoint au MaireMarch 28, 2026
Sylviane Leclou7ème adjoint au MaireMarch 28, 2026
Franck Sapin8ème adjoint au MaireMarch 28, 2026
Show the full council (29)
NameOfficeSince
Patrick de CasanoveMaireMarch 28, 2026
Martine Segui1er adjoint au MaireMarch 28, 2026
Jean-Guy Renon2ème adjoint au MaireMarch 28, 2026
Cyprine Lavaud3ème adjoint au MaireMarch 28, 2026
Guillaume de Blignières4ème adjoint au MaireMarch 28, 2026
Annabella Lesage5ème adjoint au MaireMarch 28, 2026
Yannick Saubes6ème adjoint au MaireMarch 28, 2026
Sylviane Leclou7ème adjoint au MaireMarch 28, 2026
Franck Sapin8ème adjoint au MaireMarch 28, 2026
Brigitte BarthasConseiller municipalMarch 22, 2026
André BenichouConseiller municipalMarch 22, 2026
Virginie BertoliConseiller municipalMarch 24, 2026
Anna CaamanoConseiller municipalMarch 22, 2026
Diana CamaioneConseiller municipalMarch 22, 2026
Patrick CazauxConseiller municipalMarch 22, 2026
Patrice CorrihonsConseiller municipalMarch 25, 2026
Alexandre GilloirConseiller municipalMarch 22, 2026
Thomas GreilsamerConseiller municipalMarch 22, 2026
Rémi LaharieConseiller municipalMarch 22, 2026
Jacques LaherreConseiller municipalMarch 22, 2026
Christiane LantenoisConseiller municipalMarch 22, 2026
Isabelle LeboeufConseiller municipalMarch 22, 2026
Dominique LebrunConseiller municipalMarch 22, 2026
Lydie LemoineConseiller municipalMarch 22, 2026
Alexandra Martins Da SilvaConseiller municipalMarch 22, 2026
Élisabeth MelisConseiller municipalJuly 6, 2026
Angélique MichauxConseiller municipalMarch 22, 2026
Muriel O'ByrneConseiller municipalMarch 22, 2026
Alain PeyrelongueConseiller 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 Ondres, above.

2026 elections

How Ondres voted in March 2026

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

Municipal council of Ondressecond round · March 22, 2026
ESPOIR ET SERENITE POUR LES ONDRAISled by Patrick de Casanove · ministry label: Miscellaneous center · 23 seats57.3%
Ondres Unieled by Murielle O'Byrne · ministry label: Miscellaneous left · 6 seats42.8%

3,317 votes cast for a list

Turnout · second round
67%

3,443 of 5,105 registered voters in Ondres voted.

92 blank and 34 spoilt ballots, not counted in the shares.

Municipal council of Ondresfirst round · March 15, 2026
ESPOIR ET SERENITE POUR LES ONDRAISministry label: Miscellaneous center45.3%
Ondres Unieministry label: Miscellaneous left33.8%
ONDRES AVEC VOUSministry label: Miscellaneous left20.9%

3,470 votes cast for a list · no seats given out: a second round followed

Turnout · first round
69%

3,530 of 5,108 registered voters in Ondres voted.

44 blank and 16 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

OndresMedian in LandesFrance median
Voted69.1%
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

Ondres spends €1,584 per resident a year

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

Spending
€1,584
per resident, 2025
€10M in all
Running costs
€1,336
per resident, 2025
€8.4M in all
Investment
€249
per resident, 2025
€1.6M in all
Debt
€1,215
per resident, end of 2025
€7.6M in all

Per resident, 2025 · against compared communes

OndresMedian in LandesFrance median
Spending€1,584
Running costs€1,336
Investment€249
Debt€1,215
€0€1,500€3,000

Spending and debt per resident, 2018 to 2025

€0€750€1,500€2,250€3,00020182019202020212022202320242025Spending 2018 : €1,709Spending 2019 : €1,246Spending 2020 : €1,207Spending 2021 : €1,242Spending 2022 : €1,692Spending 2023 : €2,265Spending 2024 : €2,553Spending 2025 : €1,584Debt 2018 : €1,396Debt 2019 : €1,223Debt 2020 : €848Debt 2021 : €769Debt 2022 : €750Debt 2023 : €1,146Debt 2024 : €1,381Debt 2025 : €1,215DebtSpending

Ondres owed €7.6M at the end of 2025, €1,215 per resident, higher than in 79% of compared French communes, equal to 91% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€1,584€249€1,215€7.6M
2024€2,553€1,218€1,381€8.2M
2023€2,265€1,035€1,146€6.5M
2022€1,692€549€750€4.2M
2021€1,242€150€769€4.2M
2020€1,207€157€848€4.6M
2019€1,246€162€1,223€6.5M
2018€1,709€612€1,396€7.2M

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

Towns its size

The 10th highest debt per resident of 41 communes its size

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

Ondres €1,215
GémenosThoiry
€0€1,650€3,300

Lowest: Gémenos, €4. Highest: Thoiry, €3,087.

Get involved

Have a say in Ondres

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 Ondres 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 Ondres’s town hall

Who is the mayor of Ondres?

Patrick de Casanove, mayor since March 28, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).

How many councilors does Ondres have?

The Ondres municipal council has 29 members, the mayor and 8 deputy mayors included.

Who won the 2026 municipal elections in Ondres?

ESPOIR ET SERENITE POUR LES ONDRAIS, in the second round on March 22, 2026, with 57.3% of the votes; it holds 23 of the 29 seats.

What was the turnout in Ondres?

69.1% 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 Ondres?

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 Ondres have?

€7.6M at the end of 2025, €1,215 per resident; the median of compared French communes was €748.

Which intercommunality is Ondres part of?

Ondres is part of the Communauté de communes du Seignanx, 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.