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Mantes-la-Jolie: Adama Gaye's list won the town hall in 2026; Jean-Luc Mélenchon would lead here in 2027

Mantes-la-Jolie (Yvelines, INSEE 78361) has 22,008 registered voters. Its council has 42 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.

The municipal election, March 2026

Round two, 22 March · 11,683 voted, 11,443 valid votes

  1. DEBOUT POUR MANTESLed by Adama Gaye · Miscellaneous 54.2% · 6,197 · 32 seats
  2. MANTES AVANT TOUTLed by Raphaël Cognet · Miscellaneous right 45.8% · 5,246 · 10 seats

Round one, 15 March · 10,377 voted, 10,160 valid votes

  1. MANTES AVANT TOUTMiscellaneous right 40.6% · 4,129
  2. DEBOUT POUR MANTESMiscellaneous 24.7% · 2,511
  3. Passionné'MantesMiscellaneous right 19.4% · 1,976
  4. MANTES-LA-JOLIE EN COMMUNUnion of the left 12.9% · 1,309
  5. Lutte Ouvrière - Le camp des TravailleursFar left 1.3% · 137
  6. L'argent, pour les services publics, pas pour la guerreFar left 1.0% · 98

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%.

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About Mantes-la-Jolie

Mantes-la-Jolie is a commune in Yvelines with 22,008 registered voters, the 9th largest of the département's 259 communes. At the municipal election of March 2026 47.2% of them voted, fewer than the 54.4% across Yvelines, and the list led by Adama Gaye won 32 of the council's 42 seats after a second round.

In the first round of the 2022 presidential election the commune voted France Unbowed 54.4%, Ensemble (Macron camp) 18.4%, National Rally 10.8%. France Unbowed did 32 points better here than across France.

Moved to today's national polls, our projection for the 2027 first round here has Jean-Luc Mélenchon ahead on 44.8%, with Marine Le Pen on 20%.

The 2027 presidential election here, round one

Our national forecast for round one, carried down to Mantes-la-Jolie from how it voted in 2022.

  1. Jean-Luc MélenchonFrance Unbowed 44.8% · France 16.8%
  2. Marine Le PenNational Rally 20.0% · France 34.2%
  3. Raphaël GlucksmannSocialists 11.6% · France 13.4%
  4. Édouard PhilippeEnsemble (Macron camp) 9.7% · France 14.3%
  5. Bruno RetailleauRepublicans 7.1% · France 7.6%
  6. Éric ZemmourReconquête 2.1% · France 3.8%
  7. Marine TondelierGreens 1.8% · France 2.9%
  8. Nicolas Dupont-AignanSovereigntists 1.5% · France 2.1%
  9. Fabien RousselCommunist Party 1.1% · France 2.0%

In 2022, round one here: France Unbowed 54.4% · Ensemble (Macron camp) 18.4% · National Rally 10.8% · Republicans 4.1% · Reconquête 3.9%. 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

Every commune in Yvelines → · All of France →