How is Cohiniac run?
Nathalie Mariette has been mayor of Cohiniac since June 12, 2026, elected by the 11 members of the municipal council. Cohiniac is part of the Communauté de communes Leff Armor Communauté.
March 2032
Councils are elected for six years; the council elects the mayor.
Register to vote ↗Throughout this page, the median in Côtes-d'Armor and the France median are the median of compared communes (those with an overall grade), each figure its own median. Cohiniac has 402 residents; every compared commune has 2,507 or more, so read its place among them with that in mind.
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: Nathalie Mariette · 11 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.
The 11 members of the Cohiniac municipal council
The mayor and 3 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| Nathalie Mariette | Maire | June 12, 2026 |
| Jean-Paul Allain | 1er adjoint au Maire | June 12, 2026 |
| Nathalie Lecoq | 2ème adjoint au Maire | June 12, 2026 |
| Claude Peridy | 3ème adjoint au Maire | June 12, 2026 |
Show the full council (11)
| Name | Office | Since |
|---|---|---|
| Nathalie Mariette | Maire | June 12, 2026 |
| Jean-Paul Allain | 1er adjoint au Maire | June 12, 2026 |
| Nathalie Lecoq | 2ème adjoint au Maire | June 12, 2026 |
| Claude Peridy | 3ème adjoint au Maire | June 12, 2026 |
| Ronan Hellec | Conseiller municipal | June 7, 2026 |
| Augustin Herissard | Conseiller municipal | June 7, 2026 |
| Jean-Paul Héder | Conseiller municipal | June 7, 2026 |
| Marie-Christine Labiche | Conseiller municipal | June 7, 2026 |
| Aurélie Le Lepvrier | Conseiller municipal | June 7, 2026 |
| Adeline Le Mehaute | Conseiller municipal | June 7, 2026 |
| Fanny Matner | Conseiller municipal | June 7, 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.
Source: Interior ministry, national register of elected officials (RNE), August 11, 2026.
Cohiniac spends €878 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
Cohiniac owed €239K at the end of 2025, €596 per resident, lower than in 63% of compared French communes, equal to 101% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €878 | €289 | €596 | €239K |
| 2024 | €1,053 | €512 | €684 | €263K |
| 2023 | €617 | €135 | €816 | €300K |
| 2022 | €832 | €172 | €955 | €336K |
| 2021 | €873 | €246 | €1,029 | €371K |
| 2020 | €803 | €226 | €1,121 | €408K |
| 2019 | €742 | €110 | €1,187 | €443K |
| 2018 | €2,162 | €1,523 | €1,231 | €476K |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
The 20th highest 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 Cohiniac
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 Cohiniac 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 Cohiniac’s town hall
Who is the mayor of Cohiniac?
Nathalie Mariette, mayor since June 12, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Cohiniac have?
The Cohiniac municipal council has 11 members, the mayor and 3 deputy mayors included.
When are the next municipal elections in Cohiniac?
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 Cohiniac have?
€239K at the end of 2025, €596 per resident; the median of compared French communes was €748.
Which intercommunality is Cohiniac part of?
Cohiniac is part of the Communauté de communes Leff Armor Communauté, 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.