Lycée Gay-Lussac
Chauny, Aisne
Schools around Chauny C+ better than 37% of compared French towns
95% of 382 candidates at Lycée Gay-Lussac passed the general & technological bac in 2025, below the average French school (96.0%).
- That is about what pupils with these backgrounds usually get (−1 pt against the expected rate).
- Its pupils’ family background index (IPS) is 104.1, less advantaged than at 82% of French lycées with the general & technological bac. Shown for context, never graded.
- Its value added ranks 2nd of the 3 lycées within 5 km.
- It counts in the School Grade of 4 towns, Chauny among them (every graded town within 5 km).
Results
DEPP · 2025 sessionEach bar counts France’s 2,202 lycées with the general & technological bac with published 2025 results; Gay-Lussac is marked.
Pass rate 95%
Higher than at 34% of them.
Value added −1 pt
Higher than at 38% of them: the shaded bars.
One year of results: the ministry’s file has the 2025 session only. With under 30 candidates, one pupil moves the rate several points.
Side by side with Aisne’s lycées
2025The 15 lycées with the general & technological bac in Aisne: further right, more advantaged pupils; higher, more passed. Backgrounds explain much of the spread, which is why value added, the colour, is the fairer comparison.
Show as a table
| School | IPS | Pass rate | Value added |
|---|---|---|---|
| Lycée polyvalent Léonard de Vinci | 101.1 | 98% | +3 pts |
| Lycée polyvalent Jean de La Fontaine | 104 | 98% | +2 pts |
| Lycée Saint-Joseph | 112.2 | 100% | +2 pts |
| Lycée Gérard de Nerval | 101.1 | 96% | +2 pts |
| Lycée Saint-Rémy | 122.5 | 99% | +1 pt |
| Lycée Saint-Jean et La Croix | 125.7 | 98% | ±0 pts |
| Lycée Gay-Lussac | 104.1 | 95% | −1 pt |
| Lycée polyvalent Pierre Méchain | 108.8 | 97% | −1 pt |
| Lycée européen | 109.2 | 97% | −1 pt |
| Lycée polyvalent Jules Verne | 108.7 | 94% | −3 pts |
| Lycée Paul Claudel | 103.6 | 93% | −3 pts |
| Lycée Frédéric et Irène Joliot Curie | 97.5 | 91% | −4 pts |
| Lycée Henri Martin | 100 | 91% | −4 pts |
| Lycée Pierre de la Ramée | 104.7 | 92% | −4 pts |
| Lycée Condorcet | 94.5 | 90% | −4 pts |
Who goes here
DEPP · 2024–25The social position index (IPS) sums up pupils’ family backgrounds from their parents’ occupations. Around 100 is typical; higher means more advantaged homes (from about 50 to 160). Shown, never graded.
Value added, in plain words
Why a high pass rate isn’t the whole story.
At Gay-Lussac, 95% of candidates passed the general & technological bac. For pupils with the same family backgrounds, ages, sex and brevet marks, the ministry expected about 96%. The difference, −1 pt, is its value added: its pupils do about as well as similar pupils elsewhere.
A school with advantaged pupils passes nearly everyone, whatever it does; one with disadvantaged pupils can teach very well and still pass fewer. Value added takes the pupils out of the comparison. Near 100% the measure has little room: a school expected to pass 99% can’t show much above it.
French schools get no letter of their own: the ministry’s value added is the fairer measure, shown as it is. A town’s School Grade blends the pass rates and value added of every collège and lycée within 5 km of it.
Living near Lycée Gay-Lussac
What homes cost in the commune, and the other schools around it.
Homes in Chauny
Cost of living in Chauny →Houses €1,165/m² · Apartments €1,111/m²
DVF sales in the commune, July 2023 to June 2026.
Collèges and lycées within 5 km
6 othersCircles: collèges. Squares: lycées. Each links to its page.
Map
Directions ↗Chauny, Aisne
Questions about Lycée Gay-Lussac
Is Lycée Gay-Lussac a good school?
In 2025, 95% of its 382 candidates passed the general & technological bac (the average French school: 96.0%). Against the rate expected from its pupils, that is −1 pt: about what similar pupils usually get.
How do pupils get a place at Lycée Gay-Lussac?
State lycée places go through the académie’s Affelnet assignment, which weighs where the family lives, the pupil’s marks and the courses chosen.
What is the IPS of Lycée Gay-Lussac?
104.1 in 2024–25. The social position index sums up pupils’ family backgrounds; around 100 is typical. TownRatings shows it for context and never grades it.
Sources: Ministry of Education (DEPP), value added of collèges (IVAC) and lycées (IVAL), 2025 session · DEPP, social position index (IPS), 2024–25 · Ministry of Education, school directory (annuaire de l’éducation) · DVF property sales. All under the Licence Ouverte 2.0 (Etalab). Updated November 4, 2026.
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.