Triel-sur-Seine: TRIEL C'EST VOUS ! won the town hall in 2026; Marine Le Pen would lead here in 2027
Triel-sur-Seine (Yvelines, INSEE 78624) has 8,948 registered voters. Its council has 33 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.
- 8,948registered voters
- 61%turnout, 2026 round one
- 28.1%Marine Le Pen, 2027 round one here (France: 34.2%)
The municipal election, March 2026
Round one, 15 March · 5,426 voted, 5,321 valid votes
- TRIEL C'EST VOUS !Miscellaneous 59.7% · 3,179 · 27 seats
- Ensemble pour TrielMiscellaneous 40.3% · 2,142 · 6 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 Triel-sur-Seine from how it voted in 2022.
- Marine Le PenNational Rally 28.1% · France 34.2%
- Édouard PhilippeEnsemble (Macron camp) 21.7% · France 14.3%
- Jean-Luc MélenchonFrance Unbowed 14.0% · France 16.8%
- Raphaël GlucksmannSocialists 12.6% · France 13.4%
- Bruno RetailleauRepublicans 10.7% · France 7.6%
- Éric ZemmourReconquête 4.6% · France 3.8%
- Marine TondelierGreens 4.0% · France 2.9%
- Nicolas Dupont-AignanSovereigntists 2.2% · France 2.1%
- Fabien RousselCommunist Party 1.7% · France 2.0%
In 2022, round one here: Ensemble (Macron camp) 36.4% · France Unbowed 18.2% · National Rally 16.6% · Reconquête 8.1% · Republicans 6.6%. 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
- Voisins-le-Bretonneux8,842 voters · Miscellaneous right
- Andrésy9,343 voters · Miscellaneous right
- Fontenay-le-Fleury8,461 voters · Miscellaneous right
- Villepreux8,034 voters · Miscellaneous centre
- Limay9,996 voters · Miscellaneous left
- Bois-d'Arcy10,078 voters · Miscellaneous right
- Carrières-sur-Seine10,080 voters · Miscellaneous right
- Croissy-sur-Seine7,868 voters · Miscellaneous right