Photo: Baidax · CC BY-SA 4.0Dieppe carries more debt per resident than 93% of compared communes
Nicolas Langlois has been mayor of Dieppe since March 22, 2026, elected by the 35 members of the municipal council. At the March 2026 municipal elections, Avec Nicolas Langlois votre Maire Tous Ensemble Pour Dieppe Protéger et Rassembler won 28 of the 35 seats in the first round on March 15, 2026, with 55.7% of the votes. Dieppe is part of the Communauté d'agglomération de la Région Dieppoise.
March 2032
Councils are elected for six years; the council elects the mayor.
Register to vote ↗Throughout this page, the median in Seine-Maritime and the France median are the median of compared communes (those with an overall grade), each figure its own median.
What stands out about Dieppe’s town hall
Won in the first round
Avec Nicolas Langlois votre Maire Tous Ensemble Pour Dieppe Protéger et Rassembler won 55.7% of the votes on March 15, 2026, more than half, so there was no second round; 4 lists stood. It took 28 of the 35 seats: half the seats as the list ahead, and its share of the rest. The other lists share the remaining 7. Who’s in charge ↓
More debt per resident than most
Dieppe owed €51.5M at the end of 2025, €1,772 per resident: higher than in 93% of compared French communes (France median €748). That equals 93% of a year’s running costs. 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.
- Avec Nicolas Langlois votre Maire Tous Ensemble Pour Dieppe Protéger et Rassembler2819 community seats
- Dieppe qu'on aime42 community seats
- Dieppe Conquérante !32 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 Dieppe 23 seats on the council of the Communauté d'agglomération de la Région Dieppoise (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: Nicolas Langlois · 35 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 22, 2026Nicolas Langlois
- 2Deputy mayors12 adjoints, elected by the councilFrançois LefebvreSarah KhedimallahLuc DesmarestLaetitia LegrandJean-Marie YhuelMarie HerbelinAurélien CanuAnne Carret+4 more
- 3Dieppe municipal council35 seats by listAvec Nicolas Langlois votre Maire Tous Ensemble Pour Dieppe Protéger et Rassembler 28 · Dieppe qu'on aime 4 · Dieppe Conquérante ! 3
- 4Communauté d'agglomération de la Région DieppoiseDieppe holds 23 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 35 members of the Dieppe municipal council
The mayor and 12 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| Nicolas Langlois | Maire | March 22, 2026 |
| François Lefebvre | 1er adjoint au Maire | March 22, 2026 |
| Sarah Khedimallah | 2ème adjoint au Maire | March 22, 2026 |
| Luc Desmarest | 3ème adjoint au Maire | March 22, 2026 |
| Laetitia Legrand | 4ème adjoint au Maire | March 22, 2026 |
| Jean-Marie Yhuel | 5ème adjoint au Maire | March 22, 2026 |
| Marie Herbelin | 6ème adjoint au Maire | March 22, 2026 |
| Aurélien Canu | 7ème adjoint au Maire | March 22, 2026 |
| Anne Carret | 8ème adjoint au Maire | March 22, 2026 |
| Marc Savary | 9ème adjoint au Maire | March 22, 2026 |
| Lysiane Claire | 10ème adjoint au Maire | March 22, 2026 |
| Florent Bussy | 11ème adjoint au Maire | March 22, 2026 |
| Christelle Leger | 12ème adjoint au Maire | March 22, 2026 |
Show the full council (35)
| Name | Office | Since |
|---|---|---|
| Nicolas Langlois | Maire | March 22, 2026 |
| François Lefebvre | 1er adjoint au Maire | March 22, 2026 |
| Sarah Khedimallah | 2ème adjoint au Maire | March 22, 2026 |
| Luc Desmarest | 3ème adjoint au Maire | March 22, 2026 |
| Laetitia Legrand | 4ème adjoint au Maire | March 22, 2026 |
| Jean-Marie Yhuel | 5ème adjoint au Maire | March 22, 2026 |
| Marie Herbelin | 6ème adjoint au Maire | March 22, 2026 |
| Aurélien Canu | 7ème adjoint au Maire | March 22, 2026 |
| Anne Carret | 8ème adjoint au Maire | March 22, 2026 |
| Marc Savary | 9ème adjoint au Maire | March 22, 2026 |
| Lysiane Claire | 10ème adjoint au Maire | March 22, 2026 |
| Florent Bussy | 11ème adjoint au Maire | March 22, 2026 |
| Christelle Leger | 12ème adjoint au Maire | March 22, 2026 |
| Flore Berlingen | Conseiller municipal | March 15, 2026 |
| Marie-Luce Buiche | Conseiller municipal | March 15, 2026 |
| Lilian Dumont | Conseiller municipal | March 15, 2026 |
| André Gautier | Conseiller municipal | March 15, 2026 |
| Hervé Gouel | Conseiller municipal | March 15, 2026 |
| Jacky Guerain | Conseiller municipal | March 15, 2026 |
| Sébastien Jumel | Conseiller municipal | March 15, 2026 |
| Antoine Labé | Conseiller municipal | March 15, 2026 |
| Eliane Lambert | Conseiller municipal | March 15, 2026 |
| Frédéric Le Berre | Conseiller municipal | March 15, 2026 |
| Pauline Legris | Conseiller municipal | March 15, 2026 |
| Jean-Christophe Lemaire | Conseiller municipal | March 15, 2026 |
| Justine Macrez | Conseiller municipal | March 15, 2026 |
| Annie Ouvry-Ledévé | Conseiller municipal | March 15, 2026 |
| Mickael Pajot | Conseiller municipal | March 15, 2026 |
| Dominique Ponjon | Conseiller municipal | March 15, 2026 |
| Marie-Odile Pousset | Conseiller municipal | March 15, 2026 |
| Patricia Ridel | Conseiller municipal | March 15, 2026 |
| Stéphanie Roby | Conseiller municipal | March 15, 2026 |
| Eric Schando | Conseiller municipal | March 15, 2026 |
| Elodie Voisin | Conseiller municipal | March 15, 2026 |
| Frédéric Weisz | 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 Dieppe, above.
How Dieppe voted in March 2026
4 lists stood; one won more than half the votes in the first round.
12,294 votes cast for a list
12,569 of 21,280 registered voters in Dieppe voted.
159 blank and 116 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.
Dieppe spends €2,188 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
Dieppe owed €51.5M at the end of 2025, €1,772 per resident, higher than in 93% of compared French communes, equal to 93% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €2,188 | €290 | €1,772 | €51.5M |
| 2024 | €2,343 | €375 | €1,822 | €52.5M |
| 2023 | €2,334 | €444 | €1,816 | €51.8M |
| 2022 | €2,078 | €338 | €1,847 | €53M |
| 2021 | €2,024 | €317 | €1,908 | €55.4M |
| 2020 | €1,894 | €365 | €1,923 | €57M |
| 2019 | €2,075 | €516 | €1,857 | €56.8M |
| 2018 | €1,881 | €327 | €1,719 | €53.2M |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
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.
Lowest: Illkirch-Graffenstaden, €82. Highest: Maubeuge, €3,481.
Have a say in Dieppe
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 Dieppe 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 Dieppe’s town hall
Who is the mayor of Dieppe?
Nicolas Langlois, mayor since March 22, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Dieppe have?
The Dieppe municipal council has 35 members, the mayor and 12 deputy mayors included.
Who won the 2026 municipal elections in Dieppe?
Avec Nicolas Langlois votre Maire Tous Ensemble Pour Dieppe Protéger et Rassembler, in the first round on March 15, 2026, with 55.7% of the votes; it holds 28 of the 35 seats.
What was the turnout in Dieppe?
59.1% 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 Dieppe?
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 Dieppe have?
€51.5M at the end of 2025, €1,772 per resident; the median of compared French communes was €748.
Which intercommunality is Dieppe part of?
Dieppe is part of the Communauté d'agglomération de la Région Dieppoise, 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.