Rosny-sur-Seine
A food shop, a school and somewhere to eat or drink.
Partly served 50.2/100 · confidence: medium· Better served than 41 % of the {n|commune|communes} of a similar size.
Identity
Rosny-sur-Seine (INSEE 78531) is in Yvelines (78), part of CU Grand Paris Seine et Oise. Population 7,328 (2023). [1]
INSEE density class: Ceintures urbaines (level 4). [2]
Data vintages: INSEE BPE 2025 · INSEE SIRENE 2026-09 · INSEE census (RP) 2023 · INSEE COG 2026 · INSEE density grid 2026 · Commune website 2026-10-24.
Permanent link: https://vivantrural.com/en/fr/78531-rosny-sur-seine
Vitality score
Vitality score 50.2/100 — Partly served (model fr-v0.2).
Confidence: medium (sources disagree on Restaurant).
Better served than 41 % of the 3,304 communes of a similar size.
Compare this with communes of a similar size. The score measures how well a place is served relative to its own size band, and larger communes score higher as a rule — so it reads meaningfully against another village, and misleadingly against a town.
Measured but not scored in this model: Market. See the methodology for why.
| Component | Value (0–1) | Weight | Contribution |
|---|---|---|---|
| Daily food | 0.35 | 25 | 8.79 |
| Social | 0.54 | 20 | 10.86 |
| Education | 0.39 | 10 | 3.93 |
| Health | 0.31 | 10 | 3.07 |
| Public & culture | 0.22 | 5 | 1.11 |
| Population trend | 1 | 10 | 10 |
| Housing mix | 0.98 | 5 | 4.89 |
Services
What is here, at a glance
A food shop, a school and somewhere to eat or drink. [3,4]
3 × Bakery (boulangerie) (LA FOURNEE DES ETOILES · MAISON GORDIEN · L'EPHEMERE). [3,4]
3 × Grocery (épicerie / supérette) (OUNADJELA NASR · ESSO ROSNY SUR SEINE · SUPERETTE DE ROSNY). [3,4]
1 × Supermarket (ROSNYDIS). [3,4]
8 × Restaurant (MISS TAPAS · LE BANQUET · WELCOME PIZZA · PALE). [3,4]
1 × Café / bar (LE SULLY). [4]
2 × Nursery school (maternelle) (ECOLE MATERNELLE ARC EN CIEL · ECOLE MATERNELLE LES BARONNES). [3]
2 × Primary school (élémentaire) (ECOLE ELEMENTAIRE LA JUSTICE · ECOLE MATERNELLE LES BARONNES). [3]
1 × Collège (COLLEGE SULLY). [3]
2 × GP (médecin généraliste) (NAZARENO CIFOLA, MÉDECIN · PHILIPPE CLEMENT, MÉDECIN). [3]
1 × Pharmacy. [3,4]
1 × Post office / agence postale (LA POSTE). [3]
1 × Library (MÉDIATHÈQUE OH ! 41 RUE NATIONALE). [3]
2 × Gym / sports hall (GYMNASE RENAUX ET TENNIS · GYMNASE CESAR MASSERA). [3]
8 × Hairdresser (L ATELIER DE COIFFURE · CA COIFFURE). [3,4]
2 × Fuel station (STATION SERVICE). [3,4]
Not counted, because the business register records them as closed: 2 × Bakery (boulangerie), 1 × Butcher (boucherie), 6 × Restaurant, 1 × Pharmacy, 1 × Hairdresser.
Not found in the commune: Butcher (boucherie). [3]
All 25 service types, with per-source counts
| Type | Count | Names | Sources |
|---|---|---|---|
| Bakery (boulangerie) | 3 | LA FOURNEE DES ETOILES · MAISON GORDIEN · L'EPHEMERE | INSEE BPE 3 / INSEE SIRENE 4 [3,4] |
| Butcher (boucherie) | 0 | INSEE BPE 0 / INSEE SIRENE 0 [3] | |
| Grocery (épicerie / supérette) | 3 | OUNADJELA NASR · ESSO ROSNY SUR SEINE · SUPERETTE DE ROSNY | INSEE BPE 3 / INSEE SIRENE 4 [3,4] |
| Supermarket | 1 | ROSNYDIS | INSEE BPE 1 / INSEE SIRENE 1 [3,4] |
| Cheese shop (fromagerie) | 0 | INSEE SIRENE 0 [4] | |
| Fishmonger | 0 | INSEE BPE 0 / INSEE SIRENE 0 [3,4] | |
| Restaurant | 8 | MISS TAPAS · LE BANQUET · WELCOME PIZZA · PALE | INSEE BPE 8 / INSEE SIRENE 18 [3,4] |
| Café / bar | 1 | LE SULLY | INSEE SIRENE 1 [4] |
| Nursery school (maternelle) | 2 | ECOLE MATERNELLE ARC EN CIEL · ECOLE MATERNELLE LES BARONNES | INSEE BPE 2 [3] |
| Primary school (élémentaire) | 2 | ECOLE ELEMENTAIRE LA JUSTICE · ECOLE MATERNELLE LES BARONNES | INSEE BPE 2 [3] |
| Collège | 1 | COLLEGE SULLY | INSEE BPE 1 [3] |
| GP (médecin généraliste) | 2 | NAZARENO CIFOLA, MÉDECIN · PHILIPPE CLEMENT, MÉDECIN | INSEE BPE 2 [3] |
| Pharmacy | 1 | INSEE SIRENE 1 / INSEE BPE 0 [3,4] | |
| Nurse | 0 | INSEE BPE 0 [3] | |
| Dentist | 0 | INSEE BPE 0 [3] | |
| Post office / agence postale | 1 | LA POSTE | INSEE BPE 1 [3] |
| Library | 1 | MÉDIATHÈQUE OH ! 41 RUE NATIONALE | INSEE BPE 1 [3] |
| Cinema | 0 | INSEE BPE 0 [3] | |
| Gym / sports hall | 2 | GYMNASE RENAUX ET TENNIS · GYMNASE CESAR MASSERA | INSEE BPE 2 [3] |
| Swimming pool | 0 | INSEE BPE 0 [3] | |
| Bank | 0 | INSEE BPE 0 [3] | |
| Hairdresser | 8 | L ATELIER DE COIFFURE · CA COIFFURE | INSEE BPE 8 / INSEE SIRENE 12 [3,4] |
| Fuel station | 2 | STATION SERVICE | INSEE BPE 2 / INSEE SIRENE 2 [3,4] |
| Hotel | 0 | INSEE BPE 0 / INSEE SIRENE 0 [3,4] | |
| Campsite | 0 | INSEE BPE 0 / INSEE SIRENE 0 [3,4] |
Market and village life
Weekly market (reported, unverified): Thursday dès 8h parking de la Mairie. [5]
Trajectory
Population 5,689 (2012) → 7,328 (2023): 28.8 % over 10 years. [6,1]
Population 4,606 (1990) → 7,328 (2023): 59.1 % over 30 years. [7,1]
Dwellings (2023): 2,931, of which 1.1 % second homes and 5.7 % vacant. [8]
Access and surroundings
Which way the everyday services lie
Bakery (Rosny-sur-Seine): 0.2 km to the east (straight line). [9]
Food shop (Rosny-sur-Seine): 0.1 km to the south-west (straight line). [9]
GP (Rosny-sur-Seine): 0.3 km to the south-east (straight line). [9]
Pharmacy (Mantes-la-Jolie): 3.3 km to the east (straight line). [10]
Primary school (Rosny-sur-Seine): 0.6 km to the south-east (straight line). [9]
Climate
Where this sits nationally
An average of 15 days a year at or above 30 °C and 32 days at or below 0 °C, over 29 complete years in 1995–2024. [11]
Measured at the MAGNANVILLE weather station, 5.2 km away at 123 m; the village itself is at 25 m. [11]
The village sits 98 m below the station, so each day's reading was shifted by 5.71 °C per km of altitude before the days were counted. Expect the result to be within about 0.68 °C. [11]
Muggy days — a dew point at or above 18 °C — average 1 day a summer. [11]
Humidity measured at MAGNANVILLE, 5.2 km away at 123 m, over 30 summers. [11]
That station sits 98 m above the village, so each day's humidity was shifted by 4.22 °C per km before the muggy days were counted. [11]
An average of 678 mm of rain a year, spread over 113 days — about 6 mm on a day it rains. [11]
Rainfall measured at MERICOURT, 3.4 km away at 20 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. [11]
Uncertainties
sources disagree on Restaurant
The market day comes from the commune's own website and has not been confirmed by a second source. [5]
References
- INSEE census (RP) 2023 — 78531/2023
- INSEE density grid 2026
- INSEE BPE 2025
- INSEE SIRENE 2026-09
- Commune website 2026-10— https://www.ville-rosny78.fr/index.php/March%C3%A9-hebdomadaire?idpage=228&afficheMenuContextuel=true— “tous les jeudis matins dès 8h jusqu'à 13h”(unverified)
- INSEE census (RP) 2023 — 78531/2012
- INSEE census (RP) 2023 — 78531/1990
- INSEE census (RP) 2023 — 78531/logement/2023
- INSEE BPE 2025 — 78531
- INSEE BPE 2025 — 78361
- Météo-France daily climatology 1995-2024
Villages like this one
Matched on size, density, second homes and which everyday shops and services are present — not on the score, so a village of the same kind that is doing better or worse shows up rather than being hidden.
| Commune | Dept | Distance | Population | Score | Band | Climate vs here |
|---|---|---|---|---|---|---|
| Le Pian-Médoc | 33 | 483 km S | 7,292 | 59.2 | Partly served | Warmer summers and colder winters.Summers feel more humid.summer 69 % · winter 84 % · humidity 64 % |
| Montoir-de-Bretagne | 44 | 337 km SW | 7,282 | 51.8 | Partly served | Much the same temperatures.Summers feel about as humid.summer 87 % · winter 92 % · humidity 93 % |
| Caudan | 56 | 390 km W | 7,206 | 56.5 | Partly served | Cooler summers, similar winters.Summers feel about as humid.summer 77 % · winter 96 % · humidity 100 % |
| Manduel | 30 | 616 km S | 7,044 | 49 | Partly served | Warmer summers and milder winters.Summers feel more humid.summer 3 % · winter 81 % · humidity 57 % |
| Lésigny | 77 | 77 km E | 6,923 | 50 | Partly served | Similar summers, colder winters.Summers feel more humid.summer 92 % · winter 73 % · humidity 79 % |
| Montreuil-Juigné | 49 | 233 km SW | 7,808 | 52.1 | Partly served | Much the same temperatures.Summers feel about as humid.summer 100 % · winter 99 % · humidity 93 % |
Order by distance instead
| Commune | Dept | Distance | Population | Score | Band | Climate vs here |
|---|---|---|---|---|---|---|
| Lésigny | 77 | 77 km E | 6,923 | 50 | Partly served | Similar summers, colder winters.Summers feel more humid.summer 92 % · winter 73 % · humidity 79 % |
| Montreuil-Juigné | 49 | 233 km SW | 7,808 | 52.1 | Partly served | Much the same temperatures.Summers feel about as humid.summer 100 % · winter 99 % · humidity 93 % |
| Montoir-de-Bretagne | 44 | 337 km SW | 7,282 | 51.8 | Partly served | Much the same temperatures.Summers feel about as humid.summer 87 % · winter 92 % · humidity 93 % |
| Caudan | 56 | 390 km W | 7,206 | 56.5 | Partly served | Cooler summers, similar winters.Summers feel about as humid.summer 77 % · winter 96 % · humidity 100 % |
| Le Pian-Médoc | 33 | 483 km S | 7,292 | 59.2 | Partly served | Warmer summers and colder winters.Summers feel more humid.summer 69 % · winter 84 % · humidity 64 % |
| Manduel | 30 | 616 km S | 7,044 | 49 | Partly served | Warmer summers and milder winters.Summers feel more humid.summer 3 % · winter 81 % · humidity 57 % |
Sort and compare these on the full list →
…and in much the same climate
The same match on size and services, narrowed to communes whose summers, winters and summer humidity are all close to Rosny-sur-Seine's. All three are required, so this section is absent for the 11.8 % of communes with no humidity station near enough to measure: two temperature axes alone cannot tell a muggy coast from a dry one.
| Commune | Dept | Distance | Population | Score | Band | Climate vs here |
|---|---|---|---|---|---|---|
| Montoir-de-Bretagne | 44 | 337 km SW | 7,282 | 51.8 | Partly served | Much the same temperatures.Summers feel about as humid.summer 87 % · winter 92 % · humidity 93 % |
| Montreuil-Juigné | 49 | 233 km SW | 7,808 | 52.1 | Partly served | Much the same temperatures.Summers feel about as humid.summer 100 % · winter 99 % · humidity 93 % |
| Changé | 72 | 150 km SW | 6,911 | 47.1 | Partly served | Much the same temperatures.Summers feel about as humid.summer 95 % · winter 92 % · humidity 100 % |
| Trignac | 44 | 340 km SW | 8,397 | 65.3 | Served | Much the same temperatures.Summers feel about as humid.summer 87 % · winter 92 % · humidity 93 % |
| Jouars-Pontchartrain | 78 | 30 km SE | 6,039 | 47 | Partly served | Much the same temperatures.Summers feel about as humid.summer 90 % · winter 99 % · humidity 100 % |
| Beaucouzé | 49 | 239 km SW | 5,732 | 62.6 | Served | Much the same temperatures.Summers feel about as humid.summer 100 % · winter 99 % · humidity 93 % |
Elsewhere
Commune website · Wikipedia (en) ·Wikipedia (fr) · INSEE dossier complet · OpenStreetMap · Web search · Map
Permanent link: https://vivantrural.com/en/fr/78531-rosny-sur-seine