Le Chesnay-Rocquencourt: Anne Père-Brillault's list won the town hall in 2026; Édouard Philippe would lead here in 2027
Le Chesnay-Rocquencourt (Yvelines, INSEE 78158) has 22,942 registered voters. Its council has 43 seats; the 2026 municipal election went to a second round on 22 March. The next municipal elections are in 2032; the presidential election is on 18 April 2027.
- 22,942registered voters
- 59%turnout, 2026 round one
- 23.5%Édouard Philippe, 2027 round one here (France: 14.3%)
The municipal election, March 2026
Round two, 22 March · 13,310 voted, 13,058 valid votes
- LE PROJET LCR 2026Led by Anne Père-Brillault · Les Républicains 54.0% · 7,053 · 33 seats
- Une énergie renouvelée pour le Chesnay-RocquencourtLed by Richard Delepierre · Miscellaneous centre 37.0% · 4,825 · 8 seats
- Unis pour le Chesnay-RocquencourtLed by Patrick Espinasse · Miscellaneous right 9.0% · 1,180 · 2 seats
Round one, 15 March · 13,555 voted, 13,313 valid votes
- LE PROJET LCR 2026Les Républicains 49.3% · 6,558
- Une énergie renouvelée pour le Chesnay-RocquencourtMiscellaneous centre 31.4% · 4,181
- Unis pour le Chesnay-RocquencourtMiscellaneous right 11.3% · 1,511
- DÉMOCRATIE COURTOISEMiscellaneous left 8.0% · 1,063
Official results, Ministère de l'Intérieur. Lists are labelled with the ministry's political "nuance"; lists in small communes carry none. The list that comes first takes half the seats as a bonus, and the rest are shared in proportion among lists over 5%.
What if the national vote changes? Every commune
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About Le Chesnay-Rocquencourt
Le Chesnay-Rocquencourt is a commune in Yvelines with 22,942 registered voters, the 7th largest of the département's 259 communes. At the municipal election of March 2026 59.1% of them voted, more than the 54.4% across Yvelines, and the list led by Anne Père-Brillault won 33 of the council's 43 seats after a second round.
In the first round of the 2022 presidential election the commune voted Ensemble (Macron camp) 38.9%, Reconquête 15.8%, Republicans 13.9%. National Rally did 13 points worse here than across France.
Moved to today's national polls, our projection for the 2027 first round here has Édouard Philippe ahead on 23.5%, with Bruno Retailleau on 20.8%.
The 2027 presidential election here, round one
Our national forecast for round one, carried down to Le Chesnay-Rocquencourt from how it voted in 2022.
- Édouard PhilippeEnsemble (Macron camp) 23.5% · France 14.3%
- Bruno RetailleauRepublicans 20.8% · France 7.6%
- Marine Le PenNational Rally 19.3% · France 34.2%
- Raphaël GlucksmannSocialists 11.3% · France 13.4%
- Éric ZemmourReconquête 10.6% · France 3.8%
- Jean-Luc MélenchonFrance Unbowed 8.4% · France 16.8%
- Marine TondelierGreens 3.1% · France 2.9%
- Nicolas Dupont-AignanSovereigntists 1.9% · France 2.1%
- Fabien RousselCommunist Party 0.9% · France 2.0%
In 2022, round one here: Ensemble (Macron camp) 38.9% · Reconquête 15.8% · Republicans 13.9% · France Unbowed 11.0% · National Rally 10.1%. Each political family moves by its national change since 2022 (half uniform, half proportional), scaled so that every commune adds up to our national forecast. The national forecast →
Communes of a similar size in Yvelines
- Montigny-le-Bretonneux22,846 voters · Miscellaneous right
- Houilles23,135 voters · Miscellaneous centre
- Poissy23,795 voters · Miscellaneous right
- Mantes-la-Jolie22,008 voters · Miscellaneous
- Conflans-Sainte-Honorine24,617 voters · Miscellaneous left
- Chatou20,643 voters · Miscellaneous right
- Plaisir20,413 voters · Miscellaneous centre
- Rambouillet19,480 voters · Miscellaneous right