Le Mesnil-Saint-Denis: UNIS POUR LE MESNIL won the town hall in 2026; Marine Le Pen would lead here in 2027

The municipal election, March 2026

Round one, 15 March · 3,693 voted, 3,573 valid votes

1. UNIS POUR LE MESNILMiscellaneous right 71.8% · 2,564 · 25 seats
2. NATURELLEMENT MESNILUnion of the centre 28.2% · 1,009 · 4 seats

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%.

The 2027 presidential election here, round one

Our national forecast for round one, carried down to Le Mesnil-Saint-Denis from how it voted in 2022.

1. Marine Le PenNational Rally 22.6% · France 34.2%
2. Édouard PhilippeEnsemble (Macron camp) 21.8% · France 14.3%
3. Bruno RetailleauRepublicans 17.0% · France 7.6%
4. Raphaël GlucksmannSocialists 13.4% · France 13.4%
5. Jean-Luc MélenchonFrance Unbowed 12.2% · France 16.8%
6. Marine TondelierGreens 4.9% · France 2.9%
7. Éric ZemmourReconquête 4.3% · France 3.8%
8. Nicolas Dupont-AignanSovereigntists 2.1% · France 2.1%
9. Fabien RousselCommunist Party 1.5% · France 2.0%

In 2022, round one here: Ensemble (Macron camp) 37.1% · France Unbowed 16.2% · National Rally 12.8% · Republicans 11.3% · Reconquête 7.7%. 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

• Beynes5,778 voters · Miscellaneous right
• Orgeval5,401 voters · Miscellaneous
• Gargenville5,354 voters · Miscellaneous right
• Le Perray-en-Yvelines5,351 voters · Miscellaneous right
• Louveciennes5,293 voters · Miscellaneous centre
• Chanteloup-les-Vignes5,980 voters · Miscellaneous right
• Saint-Rémy-lès-Chevreuse6,071 voters · Miscellaneous right
• Les Essarts-le-Roi5,112 voters · Miscellaneous centre

Every commune in Yvelines → · All of France →