Biol invested less per resident in 2025 than 98% of compared communes
Patrick Belmont has been mayor of Biol since March 15, 2026, elected by the 19 members of the municipal council. A single list stood in March 2026, Construisons Ensemble Biol pour Demain, and took all 19 seats. Biol is part of the Communauté de communes Les Vals du Dauphiné.
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. Biol has 1,594 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.
What stands out about Biol’s town hall
A single list
Only one list stood in Biol on March 15, 2026: Construisons Ensemble Biol pour Demain. It took all 19 seats; with no rival list, voters could only vote for it, cast a blank ballot or stay at home. 2026 elections ↓
Turnout below most communes
50.4% of registered voters in Biol voted on March 15, 2026: lower than in 76% 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
Biol owed €411K at the end of 2025, €260 per resident: lower than in 89% of compared French communes (France median €748). That equals 47% of a year’s running costs. The commune’s money ↓
Little investment
Biol invested €91 per resident (buildings, roads, equipment), 14% of its spending: lower 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.
The council the voters chose
Seats as the March 2026 results gave them, one dot a seat.
- Construisons Ensemble Biol pour Demain191 community seat
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 Biol 1 seat on the council of the Communauté de communes Les Vals du Dauphiné (community seats).
Source: Interior ministry, 2026 municipal election results (March 15 and 22), subject to corrections and appeals.
4 authorities share the work
The commune is the tier closest to residents; the intercommunality, the département and the région do the rest.
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 Belmont · 19 councilors
The services its communes share: usually waste collection, economic development and planning documents; often water and local buses.
Social aid (RSA, care for older and disabled people, child protection), collèges, the département’s roads, and funding for fire and rescue.
Lycées, regional trains (TER) and coaches, economic development and job training.
Who to ask
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.
From the mayor to the intercommunality
The officials as the Interior ministry’s register lists them, and the council by list.
- 1Mayorsince March 15, 2026Patrick Belmont
- 2Deputy mayors4 adjoints, elected by the councilGuy PrudhommeChantal GiroudDenis BoitonSéverine Depierre
- 3Biol municipal council19 seats by listConstruisons Ensemble Biol pour Demain 19
- 4Communauté de communes Les Vals du DauphinéBiol holds 1 seatCommunity councilors are drawn from the council lists in the same vote.
Source: Interior ministry, national register of elected officials (RNE), August 11, 2026.
The 19 members of the Biol municipal council
The mayor and 4 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| Patrick Belmont | Maire | March 15, 2026 |
| Guy Prudhomme | 1er adjoint au Maire | March 21, 2026 |
| Chantal Giroud | 2ème adjoint au Maire | March 21, 2026 |
| Denis Boiton | 3ème adjoint au Maire | March 21, 2026 |
| Séverine Depierre | 4ème adjoint au Maire | March 21, 2026 |
Show the full council (19)
| Name | Office | Since |
|---|---|---|
| Patrick Belmont | Maire | March 15, 2026 |
| Guy Prudhomme | 1er adjoint au Maire | March 21, 2026 |
| Chantal Giroud | 2ème adjoint au Maire | March 21, 2026 |
| Denis Boiton | 3ème adjoint au Maire | March 21, 2026 |
| Séverine Depierre | 4ème adjoint au Maire | March 21, 2026 |
| David Badin | Conseiller municipal | March 15, 2026 |
| Alexandra Balaye | Conseiller municipal | March 15, 2026 |
| Jordan Barrot | Conseiller municipal | March 15, 2026 |
| Sabrina Bentaha | Conseiller municipal | March 15, 2026 |
| Yannick Calloud | Conseiller municipal | March 15, 2026 |
| Eric Chavrot | Conseiller municipal | March 15, 2026 |
| Morgane Clavel | Conseiller municipal | March 15, 2026 |
| Baptiste Debiez | Conseiller municipal | March 15, 2026 |
| Perrine Gonnet | Conseiller municipal | March 15, 2026 |
| Jean-Luc Gros | Conseiller municipal | March 15, 2026 |
| Antoine Guillot | Conseiller municipal | March 15, 2026 |
| Ophélie Micoud | Conseiller municipal | March 15, 2026 |
| Marie-Anne Nebinger | Conseiller municipal | March 15, 2026 |
| Sandra Realinho | Conseiller municipal | March 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 Biol, above.
How Biol voted in March 2026
A single list stood.
546 votes cast for a list
606 of 1,203 registered voters in Biol voted.
32 blank and 28 spoilt ballots, not counted in the shares.
Turnout, first round · March 15, 2026
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.
Biol spends €649 per resident a year
The commune’s consolidated accounts: main and annexed budgets, transfers between them removed.
Per resident, 2025 · against compared communes
Spending and debt per resident, 2018 to 2025
Biol owed €411K at the end of 2025, €260 per resident, lower than in 89% of compared French communes, equal to 47% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €649 | €91 | €260 | €411K |
| 2024 | €834 | €296 | €370 | €579K |
| 2023 | €603 | €83 | €485 | €742K |
| 2022 | €711 | €195 | €605 | €905K |
| 2021 | €674 | €215 | €721 | €1.1M |
| 2020 | €603 | €135 | €858 | €1.3M |
| 2019 | €754 | €268 | €992 | €1.5M |
| 2018 | €1,127 | €609 | €907 | €1.3M |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
The 10th lowest debt per resident of 41 communes its size
The 40 compared communes nearest in population, debt per resident at the end of 2025.
Lowest: Watten, €1. Highest: Mers-les-Bains, €3,228.
Have a say in Biol
French citizens register online or at the town hall; citizens of other EU countries can vote in municipal elections too.
service-public.fr ↗See where you’re registered and which polling station is yours.
service-public.fr ↗Council meetings are public; the agenda and minutes are posted at the town hall and usually on its website.
service-public.fr ↗Opening hours, address and phone number of the mairie of Biol in the public services directory.
lannuaire.service-public.fr ↗Who can stand, how lists are formed and the deadlines, from the Interior ministry.
interieur.gouv.fr ↗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 Biol’s town hall
Who is the mayor of Biol?
Patrick Belmont, mayor since March 15, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Biol have?
The Biol municipal council has 19 members, the mayor and 4 deputy mayors included.
Who won the 2026 municipal elections in Biol?
Only one list stood: Construisons Ensemble Biol pour Demain, which took all 19 seats.
What was the turnout in Biol?
50.4% 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 Biol?
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 Biol have?
€411K at the end of 2025, €260 per resident; the median of compared French communes was €748.
Which intercommunality is Biol part of?
Biol is part of the Communauté de communes Les Vals 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.