Chilly-Mazarin elected its council in the first round
Rafika Rezgui has been mayor of Chilly-Mazarin since March 21, 2026, elected by the 35 members of the municipal council. At the March 2026 municipal elections, Réussir ensemble Chilly-Mazarin won 28 of the 35 seats in the first round on March 15, 2026, with 58.7% of the votes. Chilly-Mazarin is part of the Communauté d'agglomération Communauté Paris-Saclay.
March 2032
Councils are elected for six years; the council elects the mayor.
Register to vote ↗Throughout this page, the median in Essonne and the France median are the median of compared communes (those with an overall grade), each figure its own median.
What stands out about Chilly-Mazarin’s town hall
Won in the first round
Réussir ensemble Chilly-Mazarin won 58.7% of the votes on March 15, 2026, more than half, so there was no second round; 2 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 ↓
Turnout below most communes
52.4% of registered voters in Chilly-Mazarin voted on March 15, 2026: lower than in 70% of compared French communes. The median of compared communes in Essonne was 55%; across France, 57.4%. 2026 elections ↓
Little investment
Chilly-Mazarin invested €239 per resident (buildings, roads, equipment), 15% of its spending: lower than in 79% 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.
- Réussir ensemble Chilly-Mazarin287 community seats
- Chilly-Mazarin, pour de vrai73 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 Chilly-Mazarin 10 seats on the council of the Communauté d'agglomération Communauté Paris-Saclay (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: Rafika Rezgui · 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 21, 2026Rafika Rezgui
- 2Deputy mayors10 adjoints, elected by the councilChristian ProponetMarie-Hélène MichonEddy PoliceDany LoyauAlain JanusFlorence TerrienFlorent PaudeleuxMyrna Naoum-Ghazieff+2 more
- 3Chilly-Mazarin municipal council35 seats by listRéussir ensemble Chilly-Mazarin 28 · Chilly-Mazarin, pour de vrai 7
- 4Communauté d'agglomération Communauté Paris-SaclayChilly-Mazarin holds 10 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 Chilly-Mazarin municipal council
The mayor and 10 deputy mayors first, then the councilors.
| Name | Office | Since |
|---|---|---|
| Rafika Rezgui | Maire | March 21, 2026 |
| Christian Proponet | 1er adjoint au Maire | March 21, 2026 |
| Marie-Hélène Michon | 2ème adjoint au Maire | March 21, 2026 |
| Eddy Police | 3ème adjoint au Maire | March 21, 2026 |
| Dany Loyau | 4ème adjoint au Maire | March 21, 2026 |
| Alain Janus | 5ème adjoint au Maire | March 21, 2026 |
| Florence Terrien | 6ème adjoint au Maire | March 21, 2026 |
| Florent Paudeleux | 7ème adjoint au Maire | March 21, 2026 |
| Myrna Naoum-Ghazieff | 8ème adjoint au Maire | March 21, 2026 |
| Aïssa Guigon | 9ème adjoint au Maire | March 21, 2026 |
| Guillaine Yenketramdoo | 10ème adjoint au Maire | March 21, 2026 |
Show the full council (35)
| Name | Office | Since |
|---|---|---|
| Rafika Rezgui | Maire | March 21, 2026 |
| Christian Proponet | 1er adjoint au Maire | March 21, 2026 |
| Marie-Hélène Michon | 2ème adjoint au Maire | March 21, 2026 |
| Eddy Police | 3ème adjoint au Maire | March 21, 2026 |
| Dany Loyau | 4ème adjoint au Maire | March 21, 2026 |
| Alain Janus | 5ème adjoint au Maire | March 21, 2026 |
| Florence Terrien | 6ème adjoint au Maire | March 21, 2026 |
| Florent Paudeleux | 7ème adjoint au Maire | March 21, 2026 |
| Myrna Naoum-Ghazieff | 8ème adjoint au Maire | March 21, 2026 |
| Aïssa Guigon | 9ème adjoint au Maire | March 21, 2026 |
| Guillaine Yenketramdoo | 10ème adjoint au Maire | March 21, 2026 |
| Fayçal Ait Saïd | Conseiller municipal | March 15, 2026 |
| Hélène Bascle | Conseiller municipal | March 15, 2026 |
| Lyna Besson | Conseiller municipal | March 15, 2026 |
| Dominique Bordas | Conseiller municipal | March 15, 2026 |
| Olivier Bouché | Conseiller municipal | March 15, 2026 |
| Valérie Bouge | Conseiller municipal | March 15, 2026 |
| Thibaut Busserolles | Conseiller municipal | March 15, 2026 |
| Uriel Demirdjian | Conseiller municipal | March 15, 2026 |
| Lalla Asmaa El Hamdani | Conseiller municipal | March 15, 2026 |
| Thomassine Fulbert | Conseiller municipal | March 15, 2026 |
| Fabienne Gérard | Conseiller municipal | March 15, 2026 |
| Piterson Joseph | Conseiller municipal | March 15, 2026 |
| Dominique Lacambre | Conseiller municipal | March 15, 2026 |
| Chantal Lacarriere Farges | Conseiller municipal | June 29, 2026 |
| Sami Lazreg | Conseiller municipal | March 15, 2026 |
| Nathalie Leanza | Conseiller municipal | March 15, 2026 |
| Serge Martins | Conseiller municipal | March 15, 2026 |
| Franck Mouge | Conseiller municipal | March 15, 2026 |
| Emmanuelle Munoz | Conseiller municipal | March 15, 2026 |
| Pedro Ribeiro Capitao | Conseiller municipal | March 15, 2026 |
| Béatrice Ricciarelli | Conseiller municipal | March 15, 2026 |
| Tracy Serichard | Conseiller municipal | March 15, 2026 |
| Marc Serres | Conseiller municipal | March 15, 2026 |
| Marie Vanhalwyn Clain | 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 Chilly-Mazarin, above.
How Chilly-Mazarin voted in March 2026
2 lists stood; one won more than half the votes in the first round.
5,238 votes cast for a list
5,384 of 10,271 registered voters in Chilly-Mazarin voted.
103 blank and 43 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.
Chilly-Mazarin spends €1,565 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
Chilly-Mazarin owed €17.3M at the end of 2025, €860 per resident, higher than in 59% of compared French communes, equal to 65% of a year’s running costs.
Show year by year
| Year | Spending | Investment | Debt | Debt in all |
|---|---|---|---|---|
| 2025 | €1,565 | €239 | €860 | €17.3M |
| 2024 | €1,796 | €405 | €931 | €18.7M |
| 2023 | €1,613 | €274 | €808 | €16.2M |
| 2022 | €1,539 | €175 | €812 | €16.2M |
| 2021 | €1,435 | €148 | €859 | €17.2M |
| 2020 | €1,447 | €108 | €828 | €16.8M |
| 2019 | €1,544 | €214 | €861 | €17.5M |
| 2018 | €1,496 | €141 | €958 | €19.6M |
Source: OFGL, consolidated commune accounts 2018–2025 (DGFiP); 2025 provisional.
The 21st 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: Bouguenais, €106. Highest: Sceaux, €2,485.
Have a say in Chilly-Mazarin
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 Chilly-Mazarin 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 Chilly-Mazarin’s town hall
Who is the mayor of Chilly-Mazarin?
Rafika Rezgui, mayor since March 21, 2026, according to the Interior ministry’s register of elected officials (August 11, 2026).
How many councilors does Chilly-Mazarin have?
The Chilly-Mazarin municipal council has 35 members, the mayor and 10 deputy mayors included.
Who won the 2026 municipal elections in Chilly-Mazarin?
Réussir ensemble Chilly-Mazarin, in the first round on March 15, 2026, with 58.7% of the votes; it holds 28 of the 35 seats.
What was the turnout in Chilly-Mazarin?
52.4% 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 Chilly-Mazarin?
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 Chilly-Mazarin have?
€17.3M at the end of 2025, €860 per resident; the median of compared French communes was €748.
Which intercommunality is Chilly-Mazarin part of?
Chilly-Mazarin is part of the Communauté d'agglomération Communauté Paris-Saclay, 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.