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Montigny-le-Bretonneux: MONTIGNY ENSEMBLE won the town hall in 2026; Édouard Philippe would lead here in 2027

Montigny-le-Bretonneux (Yvelines, INSEE 78423) has 22,846 registered voters. Its council has 39 seats; the 2026 municipal election was settled in the first round on 15 March. The next municipal elections are in 2032; the presidential election is on 18 April 2027.

The municipal election, March 2026

Round one, 15 March · 12,420 voted, 12,185 valid votes

  1. MONTIGNY ENSEMBLEMiscellaneous right 72.5% · 8,838 · 34 seats
  2. AIMES MontignyEcologist 16.2% · 1,978 · 3 seats
  3. MONTIGNY SOLIDARITÉ 2026Miscellaneous left 11.2% · 1,369 · 2 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 Montigny-le-Bretonneux from how it voted in 2022.

  1. Édouard PhilippeEnsemble (Macron camp) 21.2% · France 14.3%
  2. Marine Le PenNational Rally 19.9% · France 34.2%
  3. Jean-Luc MélenchonFrance Unbowed 19.4% · France 16.8%
  4. Raphaël GlucksmannSocialists 14.3% · France 13.4%
  5. Bruno RetailleauRepublicans 12.6% · France 7.6%
  6. Marine TondelierGreens 5.1% · France 2.9%
  7. Éric ZemmourReconquête 3.5% · France 3.8%
  8. Nicolas Dupont-AignanSovereigntists 1.9% · France 2.1%
  9. Fabien RousselCommunist Party 1.7% · France 2.0%

In 2022, round one here: Ensemble (Macron camp) 35.6% · France Unbowed 24.7% · National Rally 10.4% · Republicans 7.9% · Greens 7.1%. 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

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