Mézières-sur-Seine grades C+ overall: better than 44% of compared French towns, and #56 of 91 in Yvelines. Its weakest subject is schools (D): bac results 0.5 points below the expected rate; brevet results 11.5 points below the expected rate. At the median price of €3,144/m², a 70 m² home costs 8.2 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−): 68% of residents live within 800 m of a bakery, and 22% 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 Mézières-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.
The Culture ministry lists 1 historic monument in Mézières-sur-Seine: 1 classé (France’s highest heritage protection) and 0 inscrit (the second level).
The oldest protected part dates from the 12th century; the first monument here was protected in 1931.
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Who lives here
A town of families: 21% of people in Mézières-sur-Seine are under 15, more than in Yvelines’ towns or compared French towns
In the comparison, Mézières-sur-Seine comes above both Yvelines’ towns (20%) and compared French towns (17%). People 65 and over make up 14% of the town.
38.8median age
Mézières-sur-SeineYvelines medianFrance median
Ages · share of residents
12%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma15%
CAP or BEP22%
Baccalauréat19%
Higher education39%
Women and men · all residents
51% women, 49% men
WomenFrance medianMen
About 96 men for every 100 women. Median share of women: Yvelines 51.6%, France 51.8%.
INSEE, census 2023 · Yvelines median and France median: the median of compared communes
Work & commuteJobs & income B+
In Mézières-sur-Seine, 21.9% of commuters go on foot, by bike or by public transport, against 35.4% in Yvelines’ towns and 13.4% in compared French towns
Half of residents lived on more than €30,220 a year per consumption unit, below Yvelines’ towns (€32,600) but above compared French towns (€25,970). 6.6% of the labour force are out of work. Mézières-sur-Seine has 550 jobs for 1,950 working residents, 0.3 per worker.
22%walk, cycle or take transit
How working residents got to work · census 2023
Driving74%
Public transport18%
On foot3%
Motorbike or scooter1%
Bicycle1%
550
jobs based in Mézières-sur-Seine, 0.3 per working resident
6.6%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€30,220
median annual income per consumption unit, 2023 · median of compared French towns €25,970
3%
worked without traveling (at or from home)
A−
Walkability: better than 84% of compared French towns
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Safety
Crime per resident in Mézières-sur-Seine runs lower than in 76% of compared French towns
Police and gendarmerie recorded 60 offenses in the graded categories in Mézières-sur-Seine in 2025. Violence against people ran at 5.2 per 1,000 residents a year and the graded property crimes at 11 (2023–2025 average). For other physical violence and sexual violence, 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, 7.6% of the index here.
5.2recorded violent incidents per 1,000 residents a yearA−Safety Grade
Recorded by type · 2025
Criminal damage21
Family violence12
Vehicle theft12
Theft from vehicles9
Burglary6
Armed robbery0
Fraud21
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.
5.2
recorded violent incidents per 1,000 residents a year, 2023–2025 average
11
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
60
offenses recorded in the graded categories in 2025
7.6%
of the index rests on the département’s average, used where small counts aren’t published
Source: SSMSI (Interior Ministry), recorded crime by commune, 2023–2025 · Licence Ouverte
History
1 historic monument, 1 classé
France has no History Grade yet: this card describes, it doesn’t grade.
The Culture ministry lists 1 historic monument in Mézières-sur-Seine: 1 classé (France’s highest heritage protection) and 0 inscrit (the second level).
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
HealthHealth B
Allowing for age and care homes, Mézières-sur-Seine sees 85 deaths per 100 expected, 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, 195 residents of Mézières-sur-Seine died, against 229 expected from France’s death rates at each age: 15% fewer. The care-home adjustment is a TownRatings modeling step, not an official statistic. A less sure grade: it could be anywhere from C to A−.
−15%deaths against expected, after care homesBHealth Grade
Deaths per 100 expected · 2016–2025
Raw85
Adjusted85
Median town88
Expected100
3
GPs in Mézières-sur-Seine · 3.6 GP consultations a year per resident within reach (APL)
2.2 mi
to the nearest emergency department, Centre hospitalier Prive du Montgarde
6.1 mi
to the nearest maternity unit, Centre hospitalier Intercommunal de Meulan les Mureaux
86.8 · 82.3
years of life expectancy at birth, women · men, Yvelines, 2025 (provisional) · France 85.9 · 80.3
People: INSEE, census 2023. Miles: center to center.
Questions about Mézières-sur-Seine
Is Mézières-sur-Seine safe?
It grades A− for safety, #15 of 91 in Yvelines. In 2025 police and gendarmerie recorded 6 burglaries and 21 acts of criminal damage.
Are schools in Mézières-sur-Seine good?
They grade D, better than 7% of compared French towns and #77 of 94 in Yvelines. 93% of 375 candidates passed the bac at Lycée Vincent Van Gogh in 2025, 2 points below the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Mézières-sur-Seine expensive to live in?
Incomes are higher than in most compared French towns, so Mézières-sur-Seine grades D for cost of living.
About Mézières-sur-Seine
Commune in Yvelines, Île-de-France
Mézières-sur-Seine is a commune of 3,923 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.