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Trept town hall

In Trept, turnout beat 91% of compared French communes

Eric Morel has been mayor of Trept since March 20, 2026, elected by the 19 members of the municipal council. At the March 2026 municipal elections, Unis pour Trept,engagés pour demain won 16 of the 19 seats in the first round on March 15, 2026, with 66.9% of the votes. Trept is part of the Communauté de communes Les Balcons du Dauphiné.

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 Isère and the France median are the median of compared communes (those with an overall grade), each figure its own median. Trept has 2,095 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.

Mayor
Eric Morel
since March 20, 2026
Council members
19
including 5 deputy mayors
Turnout, March 2026
67%
first round · France median 57%
Debt per resident
€401
end of 2025 · France median €748
In brief

What stands out about Trept’s town hall

Won in the first round

Unis pour Trept,engagés pour demain won 66.9% of the votes on March 15, 2026, more than half, so there was no second round; 2 lists stood. It took 16 of the 19 seats: half the seats as the list ahead, and its share of the rest. The other lists share the remaining 3. Who’s in charge ↓

Turnout above most communes

67.2% of registered voters in Trept voted on March 15, 2026: higher than in 91% of compared French communes. The median of compared communes in Isère was 54.9%; across France, 57.4%. 2026 elections ↓

Less debt per resident than most

Trept owed €858K at the end of 2025, €401 per resident: lower than in 79% of compared French communes (France median €748). That equals 59% of a year’s running costs. The commune’s money ↓

Little investment

Trept invested €160 per resident (buildings, roads, equipment), 19% of its spending: lower than in 91% 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 · 19 seatsTrept municipal councilUnis pour Trept,engagés pour demain: 16 of 19
Unis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUnis pour Trept,engagés pour demainUn nouvel élan pour TreptUn nouvel élan pour TreptUn nouvel élan pour Trept19seats
  • Unis pour Trept,engagés pour demain161 community seat
  • Un nouvel élan pour Trept30 community seats

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. The same vote gave Trept 1 seat on the council of the Communauté de communes Les Balcons du Dauphiné (community seats).

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

Who runs Trept

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 Trept

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: Eric Morel · 19 councilors

Intercommunality · communauté de communesCommunauté de communes Les Balcons du Dauphiné

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

DépartementConseil départemental · Isère

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

RégionConseil régional · Auvergne-Rhône-Alpes

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

Who to ask

Birth, marriage and death certificatesMairie de Trept
Registering to voteMairie de Trept
Nursery and primary schoolsMairie de Trept
Building permits (filed at the town hall)Mairie de Trept
Household waste (usually)Communauté de communes Les Balcons du Dauphiné
Collèges (ages 11 to 15)Conseil départemental · Isère
RSA, care for older people, child protectionConseil départemental · Isère
Lycées (ages 15 to 18)Conseil régional · Auvergne-Rhône-Alpes
Regional trains (TER)Conseil régional · Auvergne-Rhône-Alpes
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 Trept

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 20, 2026
    Eric Morel
  2. 2
    Deputy mayors5 adjoints, elected by the council
    Christophe PirodonJosiane VendevilleXavier FournetIsabelle JoannesBruno Mugnier
  3. 3
    Trept municipal council19 seats by list
    Unis pour Trept,engagés pour demain 16 · Un nouvel élan pour Trept 3
  4. 4
    Communauté de communes Les Balcons du DauphinéTrept holds 1 seat
    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 19 members of the Trept municipal council

The mayor and 5 deputy mayors first, then the councilors.

NameOfficeSince
Eric MorelMaireMarch 20, 2026
Christophe Pirodon1er adjoint au MaireMarch 20, 2026
Josiane Vendeville2ème adjoint au MaireMarch 20, 2026
Xavier Fournet3ème adjoint au MaireMarch 20, 2026
Isabelle Joannes4ème adjoint au MaireMarch 20, 2026
Bruno Mugnier5ème adjoint au MaireMarch 20, 2026
Show the full council (19)
NameOfficeSince
Eric MorelMaireMarch 20, 2026
Christophe Pirodon1er adjoint au MaireMarch 20, 2026
Josiane Vendeville2ème adjoint au MaireMarch 20, 2026
Xavier Fournet3ème adjoint au MaireMarch 20, 2026
Isabelle Joannes4ème adjoint au MaireMarch 20, 2026
Bruno Mugnier5ème adjoint au MaireMarch 20, 2026
Delphine AuclairConseiller municipalApril 15, 2026
Melissa DombesConseiller municipalMarch 15, 2026
Laura FarfouillonConseiller municipalMarch 15, 2026
Mélissa FasquelConseiller municipalMarch 15, 2026
Alexandre FaureConseiller municipalMarch 15, 2026
Chantal GrosConseiller municipalMarch 15, 2026
Patrice GrosConseiller municipalMarch 15, 2026
Maxence GuillermazConseiller municipalMarch 15, 2026
Celine MarrouConseiller municipalApril 15, 2026
Quentin MonteroConseiller municipalMarch 15, 2026
Nathalie PraConseiller municipalMarch 15, 2026
Nathalie RiouConseiller municipalMarch 15, 2026
Serge RoybinConseiller 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 Trept, above.

2026 elections

How Trept voted in March 2026

2 lists stood; one won more than half the votes in the first round.

Municipal council of Treptfirst round · March 15, 2026
Unis pour Trept,engagés pour demain16 seats66.9%
Un nouvel élan pour Trept3 seats33.1%

1,038 votes cast for a list

Turnout · first round
67%

1,061 of 1,579 registered voters in Trept voted.

15 blank and 8 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

TreptMedian in IsèreFrance median
Voted67.2%
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

Trept spends €837 per resident a year

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

Spending
€837
per resident, 2025
€1.8M in all
Running costs
€677
per resident, 2025
€1.4M in all
Investment
€160
per resident, 2025
€343K in all
Debt
€401
per resident, end of 2025
€858K in all

Per resident, 2025 · against compared communes

TreptMedian in IsèreFrance median
Spending€837
Running costs€677
Investment€160
Debt€401
€0€1,000€2,000

Spending and debt per resident, 2018 to 2025

€0€500€1,000€1,500€2,00020182019202020212022202320242025Spending 2018 : €1,152Spending 2019 : €852Spending 2020 : €696Spending 2021 : €920Spending 2022 : €925Spending 2023 : €958Spending 2024 : €1,173Spending 2025 : €837Debt 2018 : €744Debt 2019 : €632Debt 2020 : €533Debt 2021 : €450Debt 2022 : €378Debt 2023 : €468Debt 2024 : €397Debt 2025 : €401DebtSpending

Trept owed €858K at the end of 2025, €401 per resident, lower than in 79% of compared French communes, equal to 59% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€837€160€401€858K
2024€1,173€536€397€865K
2023€958€363€468€1M
2022€925€378€378€857K
2021€920€364€450€1M
2020€696€170€533€1.2M
2019€852€340€632€1.4M
2018€1,152€639€744€1.5M

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

Towns its size

The 12th lowest debt per resident of 41 communes its size

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

Trept €401
WattenMers-les-Bains
€0€1,700€3,400

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

Get involved

Have a say in Trept

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 Trept 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 Trept’s town hall

Who is the mayor of Trept?

Eric Morel, mayor since March 20, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).

How many councilors does Trept have?

The Trept municipal council has 19 members, the mayor and 5 deputy mayors included.

Who won the 2026 municipal elections in Trept?

Unis pour Trept,engagés pour demain, in the first round on March 15, 2026, with 66.9% of the votes; it holds 16 of the 19 seats.

What was the turnout in Trept?

67.2% 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 Trept?

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 Trept have?

€858K at the end of 2025, €401 per resident; the median of compared French communes was €748.

Which intercommunality is Trept part of?

Trept is part of the Communauté de communes Les Balcons du Dauphiné, 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.