Rosny-sur-Seine grades C− overall: better than 18% of compared French towns, and #78 of 91 in Yvelines. Its weakest subject is schools (D−): bac results 2.6 points below the expected rate; brevet results 7.1 points below the expected rate. At the median price of €2,574/m², a 70 m² home costs 6.7 times the median annual income per consumption unit (an income adjusted for household size) in the Communauté urbaine Grand Paris Seine et Oise. Its strongest is walkability (A): 90% of residents live within 800 m of a bakery, and 32% of working residents walk, cycle or take public transport to work.
Hazard risk isn’t graded in France yet: national flood maps cover only some areas. The overall grade uses the other six subjects.
Each subject compares Rosny-sur-Seine with other French towns of 2,500 or more, ordered by how far its rank is from the middle. American and UK towns are graded separately.
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
Work & commuteJobs & income D
More people in Rosny-sur-Seine are out of work than in Yvelines’ towns or across compared French towns: 14.8%
In the comparison, Rosny-sur-Seine comes above both Yvelines’ towns (8.7%) and compared French towns (10.1%). Rosny-sur-Seine has 1,650 jobs for 2,950 working residents, 0.6 per worker. The median disposable income is €24,990 a year per consumption unit.
32%walk, cycle or take transit
How working residents got to work · census 2023
Driving66%
Public transport29%
On foot3%
Bicycle1%
Motorbike or scooter0%
1,650
jobs based in Rosny-sur-Seine, 0.6 per working resident
14.8%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€24,990
median annual income per consumption unit, 2023 · median of compared French towns €25,970
2%
worked without traveling (at or from home)
A
Walkability: better than 90% of compared French towns
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
HealthHealth B
Rosny-sur-Seine records 84 deaths for every 100 its ages predict, against 76 in Yvelines’ towns and 88 in compared French towns
Care access and life expectancy are shown for context, not graded.
From 2016 to 2025, 389 residents of Rosny-sur-Seine died, against 465 expected from France’s death rates at each age: 16% fewer. Life expectancy at birth in Yvelines is 86.8 years for women and 82.3 for men (2025), against 85.9 and 80.3 across France. The care-home adjustment is a TownRatings modeling step, not an official statistic.
−16%deaths against expected, after care homesBHealth Grade
Deaths per 100 expected · 2016–2025
Raw84
Adjusted84
Median town88
Expected100
2
GPs in Rosny-sur-Seine · 1.2 GP consultations a year per resident within reach (APL)
2 mi
to the nearest emergency department, Centre hospitalier Francois Quesnay
2 mi
to the nearest maternity unit, Centre hospitalier Francois Quesnay
86.8 · 82.3
years of life expectancy at birth, women · men, Yvelines, 2025 (provisional) · France 85.9 · 80.3
France has no History Grade yet: this card describes, it doesn’t grade.
The Culture ministry lists 2 historic monuments in Rosny-sur-Seine: 2 classé (France’s highest heritage protection) and 0 inscrit (the second level). 4.9% of its homes were built before 1919, against 7.4% in the median compared French town.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Safety
Rosny-sur-Seine has less crime per resident than 55% of compared French towns
Police and gendarmerie recorded 139 offenses in the graded categories in Rosny-sur-Seine in 2025. For armed robbery, this figure isn’t published when it’s small (five or fewer in at least one of the last three years); the index uses the département’s average instead, 1.8% of the index here.
5.9recorded violent incidents per 1,000 residents a yearBSafety Grade
Recorded by type · 2025
Criminal damage44
Burglary30
Family violence25
Other physical violence13
Theft from vehicles13
Vehicle theft8
Sexual violence6
Drug use53
Theft without violence34
Fraud27
Not in the gradeTheft without violence, drug use and fraud are shown for information but left out of the Safety Grade, which counts violence plus burglaries, vehicle thefts, thefts from vehicles and criminal damage per resident.
5.9
recorded violent incidents per 1,000 residents a year, 2023–2025 average
14.5
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
139
offenses recorded in the graded categories in 2025
1.8%
of the index rests on the département’s average, used where small counts aren’t published
People: INSEE, census 2023. Miles: center to center.
Questions about Rosny-sur-Seine
Is Rosny-sur-Seine safe?
It grades B for safety, #48 of 91 in Yvelines. In 2025 police and gendarmerie recorded 30 burglaries and 44 acts of criminal damage.
Are schools in Rosny-sur-Seine good?
They grade D−, better than 2% of compared French towns and #92 of 94 in Yvelines. The lycée stands out: 95% of 453 candidates passed the bac at Lycée Saint-Exupéry in 2025, 2 points above the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Rosny-sur-Seine expensive to live in?
Incomes are lower than in most compared French towns, so Rosny-sur-Seine grades C− for cost of living.
About Rosny-sur-Seine
Commune in Yvelines, Île-de-France
Rosny-sur-Seine is a commune of 7,328 people in the Communauté urbaine Grand Paris Seine et Oise. TownRatings compares communes, France’s local unit: each has its own mayor and its own statistics. Its area takes in the town and the countryside around it.
Built from INSEE’s 2026 official geography (COG) and IGN Admin Express boundaries
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.
