Photo: Jpcuvelier · CC BY-SA 4.0How is Roost-Warendin run?
Lionel Courdavault has been mayor of Roost-Warendin since March 23, 2026, elected by the 29 members of the municipal council. At the March 2026 municipal elections, Roost-Warendin, c'est bien won 23 of the 29 seats in the first round on March 15, 2026, with 54.9% of the votes. Roost-Warendin is part of the Communauté d'agglomération Douaisis Agglo.
March 2032
Councils are elected for six years; the council elects the mayor.
Register to vote ↗Throughout this page, the median in Nord and the France median are the median of compared communes (those with an overall grade), each figure its own median.
The council the voters chose
Seats as the March 2026 results gave them, one dot a seat.
- Roost-Warendin, c'est bien232 community seats
- Demain Roost-Warendin60 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 Roost-Warendin 2 seats on the council of the Communauté d'agglomération Douaisis Agglo (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: Lionel Courdavault · 29 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 23, 2026Lionel Courdavault
- 2Deputy mayors8 adjoints, elected by the councilLaurent IlskiFrancette DuezBernard RichardSylvie PantignyChristophe BoidinMarylène BoeykensGuillaume HonoréDanny d'Amore
- 3Roost-Warendin municipal council29 seats by listRoost-Warendin, c'est bien 23 · Demain Roost-Warendin 6
- 4Communauté d'agglomération Douaisis AggloRoost-Warendin holds 2 seatsCommunity councilors are drawn from the council lists in the same vote.
Source: Interior ministry, national register of elected officials (RNE), August 11, 2026.
The 29 members of the Roost-Warendin municipal council
The mayor and 8 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| Lionel Courdavault | Maire | March 23, 2026 |
| Laurent Ilski | 1er adjoint au Maire | March 23, 2026 |
| Francette Duez | 2ème adjoint au Maire | March 23, 2026 |
| Bernard Richard | 3ème adjoint au Maire | March 23, 2026 |
| Sylvie Pantigny | 4ème adjoint au Maire | March 23, 2026 |
| Christophe Boidin | 5ème adjoint au Maire | March 23, 2026 |
| Marylène Boeykens | 6ème adjoint au Maire | March 23, 2026 |
| Guillaume Honoré | 7ème adjoint au Maire | March 23, 2026 |
| Danny d'Amore | 8ème adjoint au Maire | March 23, 2026 |
Show the full council (29)
| Name | Office | Since |
|---|---|---|
| Lionel Courdavault | Maire | March 23, 2026 |
| Laurent Ilski | 1er adjoint au Maire | March 23, 2026 |
| Francette Duez | 2ème adjoint au Maire | March 23, 2026 |
| Bernard Richard | 3ème adjoint au Maire | March 23, 2026 |
| Sylvie Pantigny | 4ème adjoint au Maire | March 23, 2026 |
| Christophe Boidin | 5ème adjoint au Maire | March 23, 2026 |
| Marylène Boeykens | 6ème adjoint au Maire | March 23, 2026 |
| Guillaume Honoré | 7ème adjoint au Maire | March 23, 2026 |
| Danny d'Amore | 8ème adjoint au Maire | March 23, 2026 |
| Frédéric Alexandre | Conseiller municipal | March 15, 2026 |
| Johan Art | Conseiller municipal | March 15, 2026 |
| Ayoub Bouzi | Conseiller municipal | March 15, 2026 |
| Roxane Cernecca | Conseiller municipal | March 15, 2026 |
| Karine Dejoncker | Conseiller municipal | April 27, 2026 |
| Carine Delavalle | Conseiller municipal | March 15, 2026 |
| Rémi Delcourt | Conseiller municipal | March 15, 2026 |
| Éric Deregnaucourt | Conseiller municipal | March 15, 2026 |
| Annick Dumont | Conseiller municipal | March 15, 2026 |
| Andrée Hellebuyck | Conseiller municipal | March 15, 2026 |
| Sylvie Joos | Conseiller municipal | March 15, 2026 |
| Cécile Leclaire | Conseiller municipal | March 15, 2026 |
| Johan Lefebvre | Conseiller municipal | March 15, 2026 |
| Frédérique Mosio | Conseiller municipal | March 15, 2026 |
| Jean-Luc Obert | Conseiller municipal | March 15, 2026 |
| Marie-Adeline Olivier | Conseiller municipal | March 15, 2026 |
| Claudine Pawlak | Conseiller municipal | March 15, 2026 |
| Daniel Skrobala | Conseiller municipal | March 15, 2026 |
| René Vancaeneghem | Conseiller municipal | March 15, 2026 |
| Laetitia Vandenbrouck | 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 Roost-Warendin, above.
How Roost-Warendin voted in March 2026
2 lists stood; one won more than half the votes in the first round.
2,631 votes cast for a list
2,711 of 4,753 registered voters in Roost-Warendin voted.
43 blank and 37 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.
Roost-Warendin spends €1,223 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
Roost-Warendin owed €5.5M at the end of 2025, €917 per resident, higher than in 63% of compared French communes, equal to 124% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €1,223 | €486 | €917 | €5.5M |
| 2024 | €1,144 | €391 | €995 | €6M |
| 2023 | €1,282 | €566 | €1,085 | €6.5M |
| 2022 | €1,090 | €429 | €641 | €3.9M |
| 2021 | €1,000 | €413 | €715 | €4.4M |
| 2020 | €845 | €251 | €533 | €3.3M |
| 2019 | €946 | €309 | €594 | €3.7M |
| 2018 | €825 | €210 | €675 | €4.2M |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
The 16th 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: La Verrière, €81. Highest: Vias, €2,534.
Have a say in Roost-Warendin
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 Roost-Warendin 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 Roost-Warendin’s town hall
Who is the mayor of Roost-Warendin?
Lionel Courdavault, mayor since March 23, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Roost-Warendin have?
The Roost-Warendin municipal council has 29 members, the mayor and 8 deputy mayors included.
Who won the 2026 municipal elections in Roost-Warendin?
Roost-Warendin, c'est bien, in the first round on March 15, 2026, with 54.9% of the votes; it holds 23 of the 29 seats.
What was the turnout in Roost-Warendin?
57% 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 Roost-Warendin?
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 Roost-Warendin have?
€5.5M at the end of 2025, €917 per resident; the median of compared French communes was €748.
Which intercommunality is Roost-Warendin part of?
Roost-Warendin is part of the Communauté d'agglomération Douaisis Agglo, 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.