Collège Denis Diderot
Alès, Gard
Schools around Alès B better than 57% of compared French towns
85% of 94 candidates at Collège Denis Diderot passed the brevet in 2025, below the average French school (86.9%).
- That is about what pupils with these backgrounds usually get (−1 pt against the expected rate).
- Its pupils’ family background index (IPS) is 87.4, less advantaged than at 86% of French collèges. Shown for context, never graded.
- Its value added ranks 3rd of the 6 collèges within 5 km.
- It counts in the School Grade of 5 towns, Alès among them (every graded town within 5 km).
Results
DEPP · 2025 sessionEach bar counts France’s 6,196 collèges with published 2025 results; Denis Diderot is marked.
Pass rate 85%
Higher than at 41% of them.
Value added −1 pt
Higher than at 49% 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 Gard’s collèges
2025The 57 collèges in Gard: 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 |
|---|---|---|---|
| Collège les Oliviers | 79.2 | 90% | +13 pts |
| Collège privé Valsainte | 113.9 | 98% | +12 pts |
| Collège privé Institut Emmanuel d'Alzon - site de Beaucaire Notre-Dame | 110.7 | 98% | +10 pts |
| Collège Romain Rolland | 62.1 | 74% | +10 pts |
| Collège Capouchiné | 77.5 | 77% | +8 pts |
| Collège privé Saint-Jean-Baptiste de La Salle | 119.2 | 100% | +6 pts |
| Collège privé Notre-Dame | 112 | 100% | +6 pts |
| Collège privé Saint-Firmin | 116.2 | 100% | +6 pts |
| Collège privé Bellevue | 113.8 | 99% | +5 pts |
| Collège privé Saint-Jean | 114.2 | 95% | +4 pts |
| Collège Léo Larguier | 81.3 | 75% | +4 pts |
| Collège privé Maintenon | 133.2 | 100% | +4 pts |
| Collège Alphonse Daudet | 76.3 | 78% | +3 pts |
| Collège les Fontaines | 109.5 | 93% | +3 pts |
| Collège privé Saint-Stanislas | 129.6 | 99% | +3 pts |
| Collège Paul Valéry | 107.7 | 94% | +2 pts |
| Collège Voltaire | 106.4 | 93% | +1 pt |
| Collège la Vallée Verte | 98.2 | 85% | +1 pt |
| Collège Jules Verne | 71.6 | 68% | ±0 pts |
| Collège Gaston Doumergue | 111.4 | 89% | ±0 pts |
| Collège privé Taisson | 116.2 | 94% | −1 pt |
| Collège Denis Diderot | 87.4 | 85% | −1 pt |
| Collège Eugène Vigne | 83 | 76% | −1 pt |
| Collège Lou Redounet | 108.4 | 93% | −1 pt |
| Collège du Mourion | 124.3 | 94% | −1 pt |
| Collège Florian | 99.4 | 83% | −2 pts |
| Collège Gérard Philipe | 99.9 | 88% | −2 pts |
| Collège Elsa Triolet | 86.5 | 74% | −2 pts |
| Collège Fédérico Garcia Lorca | 100.2 | 84% | −2 pts |
| Collège la Gardonnenque | 103.5 | 87% | −2 pts |
| Collège Ledignan | 103.8 | 89% | −2 pts |
| Collège Jean Racine | 107.4 | 88% | −3 pts |
| Collège Georges Ville | 100.9 | 86% | −3 pts |
| Collège Jean-Louis Trintignant | 109.1 | 90% | −4 pts |
| Collège Henri Pitot | 102.4 | 81% | −5 pts |
| Collège Mont Duplan | 96.2 | 82% | −5 pts |
| Collège Ada Lovelace | 82.5 | 63% | −5 pts |
| Collège Claudie Haignere | 116.7 | 88% | −5 pts |
| Collège Frédéric Desmons | 103.5 | 85% | −5 pts |
| Collège de la Galaberte | 103.1 | 86% | −5 pts |
| Collège André Chamson | 103.4 | 89% | −5 pts |
| Collège Bernard de Ventadour | 105.1 | 87% | −6 pts |
| Collège Via Domitia | 102 | 84% | −6 pts |
| Collège Jean Baptiste Dumas | 102.7 | 83% | −6 pts |
| Collège Le Vignet | 117.3 | 84% | −8 pts |
| Collège Jean Rostand | 99.7 | 80% | −8 pts |
| Collège La Garriguette | 107.1 | 82% | −8 pts |
| Collège Jean Moulin | 74.1 | 66% | −9 pts |
| Collège Théodore Monod | 115.8 | 83% | −9 pts |
| Collège Irène Joliot-Curie | 101.5 | 78% | −10 pts |
| Collège Claude Chappe | 108 | 79% | −10 pts |
| Collège de Coutach | 110.7 | 81% | −11 pts |
| Collège Lou Castellas | 107.5 | 78% | −12 pts |
| Collège Feuchères | 93.5 | 71% | −12 pts |
| Collège Armand Coussens | 96.9 | 70% | −12 pts |
| Collège Révolution | 120.8 | 74% | −16 pts |
| Collège Jean Vilar | 85 | 63% | −18 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 Denis Diderot, 85% of candidates passed the brevet. For pupils with the same family backgrounds and ages, the ministry expected about 86%. 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 Collège Denis Diderot
What homes cost in the commune, and the other schools around it.
Homes in Alès
Cost of living in Alès →Houses €2,069/m² · Apartments €1,444/m²
DVF sales in the commune, July 2023 to June 2026.
Collèges and lycées within 5 km
10 othersCircles: collèges. Squares: lycées. Each links to its page.
Map
Directions ↗Alès, Gard
Questions about Collège Denis Diderot
Is Collège Denis Diderot a good school?
In 2025, 85% of its 94 candidates passed the brevet (the average French school: 86.9%). Against the rate expected from its pupils, that is −1 pt: about what similar pupils usually get.
How do pupils get a place at Collège Denis Diderot?
A state collège takes the children of its catchment area (secteur), set by the département council; families can ask the académie for an exception (dérogation).
What is the IPS of Collège Denis Diderot?
87.4 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.