Chambly carries more debt per resident than 96% of compared communes
David Lazarus has been mayor of Chambly since March 28, 2026, elected by the 29 members of the municipal council. At the March 2026 municipal elections, CHAMBLY POUR VOUS won 21 of the 29 seats in the second round on March 22, 2026, with 46% of the votes. Chambly is part of the Communauté de communes Thelloise.
March 2032
Councils are elected for six years; the council elects the mayor.
Register to vote ↗Throughout this page, the median in Oise and the France median are the median of compared communes (those with an overall grade), each figure its own median.
What stands out about Chambly’s town hall
Decided in a second round
No list won half the votes in the first round, when 3 lists stood. In the second round on March 22, 2026, CHAMBLY POUR VOUS came first with 46% and took 21 of the 29 seats; the other lists share the remaining 8. Who’s in charge ↓
Turnout below most communes
50.4% of registered voters in Chambly voted on March 15, 2026: lower than in 76% of compared French communes. The median of compared communes in Oise was 54.2%; across France, 57.4%. 2026 elections ↓
More debt per resident than most
Chambly owed €20.9M at the end of 2025, €2,086 per resident: higher than in 96% of compared French communes (France median €748). That equals 154% of a year’s running costs. The commune’s money ↓
Little investment
Chambly invested €175 per resident (buildings, roads, equipment), 11% of its spending: lower than in 89% 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.
- CHAMBLY POUR VOUS218 community seats
- Préservons Chambly52 community seats
- CHAMBLY AU COEUR31 community seat
As elected in the second round, March 22, 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 Chambly 11 seats on the council of the Communauté de communes Thelloise (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: David Lazarus · 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 28, 2026David Lazarus
- 2Deputy mayors8 adjoints, elected by the councilMarie-France SerraPatrice GouinDoriane FrayerMarc VirionLaurence LannoyRafael Da SilvaMaud MathonatGuillaume Nicastro
- 3Chambly municipal council29 seats by listCHAMBLY POUR VOUS 21 · Préservons Chambly 5 · CHAMBLY AU COEUR 3
- 4Communauté de communes ThelloiseChambly holds 11 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 Chambly municipal council
The mayor and 8 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| David Lazarus | Maire | March 28, 2026 |
| Marie-France Serra | 1er adjoint au Maire | March 28, 2026 |
| Patrice Gouin | 2ème adjoint au Maire | March 28, 2026 |
| Doriane Frayer | 3ème adjoint au Maire | March 28, 2026 |
| Marc Virion | 4ème adjoint au Maire | March 28, 2026 |
| Laurence Lannoy | 5ème adjoint au Maire | March 28, 2026 |
| Rafael Da Silva | 6ème adjoint au Maire | March 28, 2026 |
| Maud Mathonat | 7ème adjoint au Maire | March 28, 2026 |
| Guillaume Nicastro | 8ème adjoint au Maire | March 28, 2026 |
Show the full council (29)
| Name | Office | Since |
|---|---|---|
| David Lazarus | Maire | March 28, 2026 |
| Marie-France Serra | 1er adjoint au Maire | March 28, 2026 |
| Patrice Gouin | 2ème adjoint au Maire | March 28, 2026 |
| Doriane Frayer | 3ème adjoint au Maire | March 28, 2026 |
| Marc Virion | 4ème adjoint au Maire | March 28, 2026 |
| Laurence Lannoy | 5ème adjoint au Maire | March 28, 2026 |
| Rafael Da Silva | 6ème adjoint au Maire | March 28, 2026 |
| Maud Mathonat | 7ème adjoint au Maire | March 28, 2026 |
| Guillaume Nicastro | 8ème adjoint au Maire | March 28, 2026 |
| Viviane Akakpovi | Conseiller municipal | March 22, 2026 |
| Emmanuel Beucher | Conseiller municipal | March 22, 2026 |
| Fabienne Bizeray | Conseiller municipal | March 22, 2026 |
| Danièle Blas | Conseiller municipal | March 22, 2026 |
| Jacques Blond | Conseiller municipal | March 22, 2026 |
| Maxime Bretin | Conseiller municipal | March 22, 2026 |
| Florence Chamalot | Conseiller municipal | March 22, 2026 |
| Arthur Desoignies | Conseiller municipal | March 22, 2026 |
| Pascal Gasnot | Conseiller municipal | March 22, 2026 |
| Melany Lecomte-Prezeau | Conseiller municipal | March 22, 2026 |
| Pascal Martin | Conseiller municipal | March 22, 2026 |
| Salima Merleau | Conseiller municipal | March 22, 2026 |
| Philippe Munos | Conseiller municipal | March 22, 2026 |
| Kévin Potet | Conseiller municipal | March 22, 2026 |
| Sylvie Quenette | Conseiller municipal | March 22, 2026 |
| Alexandre Sabatou | Conseiller municipal | March 22, 2026 |
| Nathalie Sabot | Conseiller municipal | March 22, 2026 |
| Corine Somville | Conseiller municipal | March 22, 2026 |
| Salah Zaoui | Conseiller municipal | March 22, 2026 |
| Sebastien Zriem | Conseiller municipal | March 22, 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 Chambly, above.
How Chambly voted in March 2026
3 lists stood in the first round; none won half the votes, so a second round followed.
3,419 votes cast for a list
3,465 of 6,942 registered voters in Chambly voted.
24 blank and 22 spoilt ballots, not counted in the shares.
3,436 votes cast for a list · no seats given out: a second round followed
3,496 of 6,938 registered voters in Chambly voted.
34 blank and 26 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.
Chambly spends €1,531 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
Chambly owed €20.9M at the end of 2025, €2,086 per resident, higher than in 96% of compared French communes, equal to 154% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €1,531 | €175 | €2,086 | €20.9M |
| 2024 | €1,610 | €201 | €2,221 | €22.4M |
| 2023 | €2,544 | €1,344 | €2,327 | €23.9M |
| 2022 | €2,194 | €1,089 | €2,107 | €21.7M |
| 2021 | €2,082 | €1,010 | €1,987 | €20.5M |
| 2020 | €2,307 | €1,285 | €1,596 | €16.5M |
| 2019 | €1,771 | €658 | €1,290 | €13.2M |
| 2018 | €1,665 | €574 | €1,682 | €17.1M |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
The 4th 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: Lorgues, €1. Highest: Saint-Grégoire, €3,678.
Have a say in Chambly
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 Chambly 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 Chambly’s town hall
Who is the mayor of Chambly?
David Lazarus, mayor since March 28, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Chambly have?
The Chambly municipal council has 29 members, the mayor and 8 deputy mayors included.
Who won the 2026 municipal elections in Chambly?
CHAMBLY POUR VOUS, in the second round on March 22, 2026, with 46% of the votes; it holds 21 of the 29 seats.
What was the turnout in Chambly?
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 Chambly?
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 Chambly have?
€20.9M at the end of 2025, €2,086 per resident; the median of compared French communes was €748.
Which intercommunality is Chambly part of?
Chambly is part of the Communauté de communes Thelloise, 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.