Châtillon-sur-Oise: Commune de châtillon-sur-oise won the town hall in 2026; Marine Le Pen would lead here in 2027
Châtillon-sur-Oise (Aisne, INSEE 02170) has 102 registered voters. Its council has 11 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.
- 102registered voters
- 85%turnout, 2026 round one
- 52.4%Marine Le Pen, 2027 round one here (France: 34.2%)
The municipal election, March 2026
Round one, 15 March · 87 voted, 85 valid votes
- Commune de châtillon-sur-oiseNo label (small commune) 51.8% · 44 · 9 seats
- Ensemble pour Châtillon-sur-OiseNo label (small commune) 48.2% · 41 · 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%.
What if the national vote changes? Every commune
Move a party's national vote share and our model reruns all 34,778 communes with your figures: the same arithmetic as our projection, so you see what changes hands and why.
3 more parties
The sliders set each party's national figure; the parties left out keep theirs. The local picture moves with the national change since the last presidential election, as in our projection.
What changes hands
- Nothing yet: move a slider.
About Châtillon-sur-Oise
Châtillon-sur-Oise is a commune in Aisne with 102 registered voters, the 621st largest of the département's 797 communes. At the municipal election of March 2026 85.3% of them voted, more than the 56.3% across Aisne, and Commune de châtillon-sur-oise won 9 of the council's 11 seats in the first round.
In the first round of the 2022 presidential election the commune voted National Rally 39.7%, Ensemble (Macron camp) 23.1%, Reconquête 10.3%. National Rally did 16 points better here than across France.
Moved to today's national polls, our projection for the 2027 first round here has Marine Le Pen ahead on 52.4%, with Bruno Retailleau on 14.1%.
The 2027 presidential election here, round one
Our national forecast for round one, carried down to Châtillon-sur-Oise from how it voted in 2022.
- Marine Le PenNational Rally 52.4% · France 34.2%
- Bruno RetailleauRepublicans 14.1% · France 7.6%
- Édouard PhilippeEnsemble (Macron camp) 11.0% · France 14.3%
- Raphaël GlucksmannSocialists 8.0% · France 13.4%
- Jean-Luc MélenchonFrance Unbowed 6.1% · France 16.8%
- Éric ZemmourReconquête 5.6% · France 3.8%
- Fabien RousselCommunist Party 2.1% · France 2.0%
- Marine TondelierGreens 0.7% · France 2.9%
In 2022, round one here: National Rally 39.7% · Ensemble (Macron camp) 23.1% · Reconquête 10.3% · Republicans 10.3% · France Unbowed 9.0%. 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 Aisne
- Haution102 voters · No label (small commune)
- Lhuys102 voters · No label (small commune)
- Monthurel102 voters · No label (small commune)
- Ronchères102 voters · No label (small commune)
- Saint-Algis102 voters · No label (small commune)
- Grand-Verly102 voters · No label (small commune)
- Aizelles103 voters · No label (small commune)
- Bassoles-Aulers103 voters · No label (small commune)