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Bossieu town hall

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

Thierry Collion has been mayor of Bossieu since March 20, 2026, elected by the 11 members of the municipal council. A single list stood in March 2026, Ensemble, continuons d'avancer pour BOSSIEU, and took all 11 seats. Bossieu is part of the Communauté de communes Bièvre Isère.

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. Bossieu has 326 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.

Mayor
Thierry Collion
since March 20, 2026
Council members
11
including 3 deputy mayors
Turnout, March 2026
54%
first round · France median 57%
Debt per resident
€1,695
end of 2025 · France median €748
In brief

What stands out about Bossieu’s town hall

A single list

Only one list stood in Bossieu on March 15, 2026: Ensemble, continuons d'avancer pour BOSSIEU. 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 ↓

More debt per resident than most

Bossieu owed €558K at the end of 2025, €1,695 per resident: higher than in 92% of compared French communes (France median €748). That equals 239% of a year’s running costs. The commune’s money ↓

A big year for investment

Bossieu invested €1,550 per resident (buildings, roads, equipment), 69% 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 seatsBossieu municipal councilEnsemble, continuons d'avancer pour BOSSIEU: 11 of 11
  • Ensemble, continuons d'avancer pour BOSSIEU11

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 Bossieu

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 Bossieu

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: Thierry Collion · 11 councilors

Intercommunality · communauté de communesCommunauté de communes Bièvre Isère

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 Bossieu
Registering to voteMairie de Bossieu
Nursery and primary schoolsMairie de Bossieu
Building permits (filed at the town hall)Mairie de Bossieu
Household waste (usually)Communauté de communes Bièvre Isère
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 Bossieu

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
    Thierry Collion
  2. 2
    Deputy mayors3 adjoints, elected by the council
    Gérald FassionIlham El BouzidiJacques Nemoz
  3. 3
    Bossieu municipal council11 seats by list
    Ensemble, continuons d'avancer pour BOSSIEU 11

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

The council

The 11 members of the Bossieu municipal council

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

NameOfficeSince
Thierry CollionMaireMarch 20, 2026
Gérald Fassion1er adjoint au MaireMarch 20, 2026
Ilham El Bouzidi2ème adjoint au MaireMarch 20, 2026
Jacques Nemoz3ème adjoint au MaireMarch 20, 2026
Show the full council (11)
NameOfficeSince
Thierry CollionMaireMarch 20, 2026
Gérald Fassion1er adjoint au MaireMarch 20, 2026
Ilham El Bouzidi2ème adjoint au MaireMarch 20, 2026
Jacques Nemoz3ème adjoint au MaireMarch 20, 2026
Jean-Charles AsensioConseiller municipalMarch 15, 2026
Anne ChaboudConseiller municipalMarch 15, 2026
Anthony ChapatConseiller municipalMarch 15, 2026
Catherine CroibierConseiller municipalMarch 15, 2026
François DefrizeConseiller municipalMarch 15, 2026
Gaëlle FrechatConseiller municipalMarch 15, 2026
Sophie Kaminski SubletConseiller 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 Bossieu, above.

2026 elections

How Bossieu voted in March 2026

A single list stood.

Municipal council of Bossieufirst round · March 15, 2026
Ensemble, continuons d'avancer pour BOSSIEU11 seats100.0%

112 votes cast for a list

Turnout · first round
54%

154 of 283 registered voters in Bossieu voted.

17 blank and 25 spoilt ballots, not counted in the shares.

Turnout, first round · March 15, 2026

BossieuMedian in IsèreFrance median
Voted54.4%
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

Bossieu spends €2,261 per resident a year

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

Spending
€2,261
per resident, 2025
€744K in all
Running costs
€711
per resident, 2025
€234K in all
Investment
€1,550
per resident, 2025
€510K in all
Debt
€1,695
per resident, end of 2025
€558K in all

Per resident, 2025 · against compared communes

BossieuMedian in IsèreFrance median
Spending€2,261
Running costs€711
Investment€1,550
Debt€1,695
€0€1,500€3,000

Spending and debt per resident, 2018 to 2025

€0€750€1,500€2,250€3,00020182019202020212022202320242025Spending 2018 : €1,037Spending 2019 : €931Spending 2020 : €908Spending 2021 : €801Spending 2022 : €973Spending 2023 : €1,002Spending 2024 : €1,951Spending 2025 : €2,261Debt 2018 : €495Debt 2019 : €424Debt 2020 : €371Debt 2021 : €318Debt 2022 : €263Debt 2023 : €239Debt 2024 : €1,504Debt 2025 : €1,695DebtSpending

Bossieu owed €558K at the end of 2025, €1,695 per resident, higher than in 92% of compared French communes, equal to 239% of a year’s running costs.

Show year by year
YearSpendingInvestmentDebtDebt in all
2025€2,261€1,550€1,695€558K
2024€1,951€1,179€1,504€484K
2023€1,002€304€239€75K
2022€973€314€263€81K
2021€801€114€318€97K
2020€908€329€371€112K
2019€931€318€424€126K
2018€1,037€354€495€142K

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

Towns its size

The 5th highest debt per resident of 41 communes its size

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

Bossieu €1,695
WattenMers-les-Bains
€0€1,700€3,400

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

Get involved

Have a say in Bossieu

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 Bossieu 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 Bossieu’s town hall

Who is the mayor of Bossieu?

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

How many councilors does Bossieu have?

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

Who won the 2026 municipal elections in Bossieu?

Only one list stood: Ensemble, continuons d'avancer pour BOSSIEU, which took all 11 seats.

What was the turnout in Bossieu?

54.4% 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 Bossieu?

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 Bossieu have?

€558K at the end of 2025, €1,695 per resident; the median of compared French communes was €748.

Which intercommunality is Bossieu part of?

Bossieu is part of the Communauté de communes Bièvre Isère, 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.