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Osny (95), école d'Immarmont
France›Val-d'Oise›Île-de-France

OsnyVal-d'Oise

A town of 17,954 in Val-d'Oise, Île-de-France.

6 places within 18 miMap →
Photo: P.poschadel · CC BY-SA 3.0
Osny (95), école d'Immarmont

Osny, Val-d'Oise · P.poschadel · CC BY-SA 3.0

Is Osny a good place to live?

Osny grades C overall: better than 26% of compared French towns, and #28 of 73 in Val-d'Oise. Its weakest subject is cost of living (D−): at the median price, a 70 m² home costs 9.4 times the median annual income per consumption unit in the intercommunality. Its strongest is walkability (A): 85% 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.

What makes Osny stand out

The one thing Osny does most differently from other towns.

Picked automatically from the data

How Osny grades

Each subject compares Osny 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.

How grading works

How TownRatings grades French towns →

Domaine de Grouchy, actuellement Hôtel de ville
Domaine de Grouchy, actuellement Hôtel de ville · Inscrit · Photo: P.poschadel · CC BY-SA 3.0
Osny’s story

Osny in pictures

The Culture ministry lists 3 historic monuments in Osny, none of them classé, France’s highest protection.

The oldest protected part dates from the 18th century; the first monument here was protected in 1926.

1.7% of its homes were built before 1919, against 7.4% in the median compared French town.

  • 1926First protected: Église Saint-Pierre-aux-Liens
  • 1990Most recently protected: Domaine de Grouchy, actuellement Hôtel de ville
Explore the history →
Nearby attractions

Château de Grouchy and 46 more in and around Osny

Other places to visit, heritage and museums in and near Osny. Best known first.

All attractions →
Places: © OpenStreetMap contributors · Wikidata

Photos from Wikimedia Commons, each under its own licence (our copy, resized).

Photo credits (5)

The data

Data highlights are ordered by what stands out in Osny.

HousingCost of living D−

The median sale price of homes in Osny is €3,438/m²

Rents are the ministry’s estimates of advertised rents, not rents actually paid.

The estimated advertised rent is €18.09/m² a month, near Val-d'Oise’s towns (€18.09/m²) and higher than compared French towns (€12.41/m²). A house in Osny goes for €3,362/m², an apartment for €3,477/m². Sales in the town from July 2023 to June 2026: 406 houses and apartments.

€3,438/m²median sale price

Median sale price per m² · Jul 2023 to Jun 2026

Osny€3,438/m²
Median of towns€2,430/m²
Val-d'Oise median€3,266/m²
By typeMedian per m²Sales
Houses€3,362/m²283
Apartments€3,477/m²123
€18.09/m²
estimated advertised apartment rent a month, charges included (€15.71 to €20.83/m² a month)
9.4
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€16.39/m²
estimated advertised house rent a month, charges included
€25,700
median annual income per consumption unit, Communauté d'agglomération de Cergy-Pontoise

Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte

Work & commuteJobs & income A−

On foot, Osny works better than 94% of compared French towns

The median disposable income is €29,260 a year per consumption unit. 31.5% of commuters walked, cycled or took the bus or train at the census, lower than Val-d'Oise’s towns (38.0%) yet higher than compared French towns (13.4%). Osny has 9,100 jobs for 7,150 working residents, 1.3 per worker.

32%walk, cycle or take transit

How working residents got to work · census 2023

Driving64%
Public transport28%
On foot3%
Motorbike or scooter1%
Bicycle1%
9,100
jobs based in Osny, 1.3 per working resident
10.8%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€29,260
median annual income per consumption unit, 2023 · median of compared French towns €25,970
4%
worked without traveling (at or from home)
A
Walkability: better than 94% of compared French towns

Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte

Schools

81.8% of candidates passed the brevet at the 18 collèges within 5 km, 4.2 points below the expected rate

Primary schools aren’t graded: France doesn’t publish their results by school.

Vocational results within 5 km: 83% passed the bac pro, of 426 candidates at 7 lycées. For exam results, it comes #56 of 76 in Val-d'Oise.

92%passed the bac (general and technological)DSchool Grade

Brevet pass rate · collèges within 5 km

Osny81.8%
Median of towns87.5%

Bac pass rate · lycées within 5 km

Osny90.6%
Median of towns92.9%
SchoolLevelCandidatesPassed, 2025
Collège Saint-Stanislas PrivateNearest collègeCollègeCollège14397%±0 pts
Lycée Paul-Émile VictorNearest lycéeGeneral lycéeGeneral lycée14291%−6 pts
Collège Les TouleusesBest against expectations: 5 points above the expected rateCollègeCollège16594%+5 pts

See all 30 schools →

92%
passed the general and technological bac, −3 pts against the expected rate
83%
passed the vocational bac, +0.2 pts against the expected rate
81.8%
passed the brevet at the collèges, −4.2 pts against the expected rate
0.4 mi
to the nearest collège from the town center

Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte

Safety

Crime per resident in Osny runs higher than in 81% of compared French towns

In 2025, 533 offenses were recorded in Osny. Per 1,000 residents a year, there were 8.6 cases of violence against people and 21.3 graded property crimes (2023–2025 average). Among the graded crimes in the town, the most frequent was criminal damage (2025).

8.6recorded violent incidents per 1,000 residents a yearC−Safety Grade

Recorded by type · 2025

Criminal damage130
Theft from vehicles108
Vehicle theft74
Other physical violence70
Family violence61
Burglary58
Sexual violence32
Theft without violence123
Fraud87
Drug use85

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.

8.6
recorded violent incidents per 1,000 residents a year, 2023–2025 average
21.3
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
533
offenses recorded in the graded categories in 2025
0.3%
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 · For armed robbery, the count isn’t published when it’s small (five or fewer in a year of the last three), so the index uses the département’s average, 0.3% of the index here. The count covers the offense categories the Safety Grade uses.

HealthHealth A−

Allowing for age and care homes, Osny sees fewer deaths than Val-d'Oise’s towns or compared French towns: 77 per 100 expected

Care access and life expectancy are shown for context, not graded.

For a family doctor, residents of Osny can choose among 18 GPs. In Val-d'Oise, life expectancy at birth reaches 85.9 years for women and 81.1 for men (2025), next to 85.9 and 80.3 for France. France’s death rates at each age would predict 1,303 deaths in the town from 2016 to 2025; there were 1,091, 16% fewer.

−23%deaths against expected, after care homesA−Health Grade

Deaths per 100 expected · 2016–2025

Raw84
Adjusted77
Median town88
Expected100
18
GPs in Osny · 2.8 GP consultations a year per resident within reach (APL)
1 mi
to the nearest emergency department, Centre hospitalier Prive Sainte Marie Osny
1.5 mi
to the nearest maternity unit, Hopital Novo site Pontoise
85.9 · 81.1
years of life expectancy at birth, women · men, Val-d'Oise, 2025 (provisional) · France 85.9 · 80.3

Source: INSEE, deaths by commune of residence 2016–2025 and censuses; Eurostat, death rates by age (© European Union); INSEE, BPE 2025; DREES, APL 2024; INSEE, life expectancy by département 2025 · Licence Ouverte · Allowing for care homes is a TownRatings estimate, not a published statistic.

Who lives here

A young town: 13% of people in Osny are 15 to 24, more than in Val-d'Oise’s towns or compared French towns

34% of adults hold a degree, lower than Val-d'Oise’s towns (38%) yet higher than compared French towns (30%). The 65-and-over age group makes up 17% of residents. Under-15s account for 20% of the population.

38.6median age
OsnyVal-d'Oise medianFrance median

Ages · share of residents

Highest diploma · residents 15 and older who have left education

No diploma20%
CAP or BEP20%
Baccalauréat20%
Higher education34%

Women and men · all residents

49% women, 51% men

About 105 men for every 100 women. Median share of women: Val-d'Oise 51.5%, France 51.8%.

Ages and diplomas in Osny
OsnyVal-d'Oise medianFrance median
Under 1520%21%17%
15–2413%12%11%
25–4426%26%23%
45–6425%25%26%
65+17%15%22%
No diploma20%17%19%
CAP or BEP20%20%26%
Baccalauréat20%19%18%
Higher education34%38%30%

INSEE, census 2023 · Val-d'Oise median and France median: the median of compared communes

History

Osny: 3 historic monuments, none of them classé

France has no History Grade yet: this card describes, it doesn’t grade.

Homes built before 1919 account for 1.7% of the housing. Its heritage reaches back to the 18th century.

3historic monuments

Monuments by protection · Mérimée

Classé0
Inscrit3
18th c.
oldest protected part
1926
first monument protected

Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period

Keep exploring

Everything we know about Osny

15pages on Osny

Landmarks

The Culture ministry lists 3 historic monuments in Osny, none of them classé, France’s highest protection.

All monuments →
Photo credits

Colonne de Réal: Photo: Clicsouris · CC BY-SA 3.0 · Église Saint-Pierre-aux-Liens: Photo: P.poschadel · CC BY-SA 3.0

Famous people from Osny

One notable person was born in Osny.

Their page →

Osny’s neighbors

The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →

All towns in Val-d'Oise →
PontoiseCergySaint-Ouen-l'AumôneCourdimancheVauréalÉragny-sur-OisePontoiseCergySaint-Ouen-l'AumôneCourdimancheVauréalÉragny-sur-OiseOsny
How the neighbors grade
TownPeopleMilesOverallCostSafetyHealth
Osny17,954—CD−C−A−
Pontoise31,9701.5DDCC+
Cergy70,9061.6DDCB−
Saint-Ouen-l'Aumône25,5782.8D−DCC−
Courdimanche7,3113C−D−BB
Vauréal16,0793.1C−D−BB
Éragny-sur-Oise18,4363.4C−DCB+

People: INSEE, census 2023. Miles: center to center.

Questions about Osny

Is Osny safe?

It grades C− for safety, #57 of 73 in Val-d'Oise. In 2025 police and gendarmerie recorded 58 burglaries and 130 acts of criminal damage.

Are schools in Osny good?

They grade D, better than 10% of compared French towns and #56 of 76 in Val-d'Oise. 91% of 142 candidates passed the bac at Lycée Paul-Émile Victor in 2025, 6 points below the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.

Is Osny expensive to live in?

Incomes are higher than in most compared French towns, so Osny grades D− for cost of living.

About Osny

Commune in Val-d'Oise, Île-de-France

Osny is a commune of 17,954 people in the Communauté d'agglomération de Cergy-Pontoise. 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

Population
17,954 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération de Cergy-Pontoise
Département
Val-d'Oise (95)
Région
Île-de-France
Area
4.8 sq mi (12.3 km²)
INSEE code
95476

Sources: INSEE, census 2023 (population, employment, commuting) · INSEE, Filosofi 2023 (income per consumption unit, poverty) · DGFiP, DVF property sales, July 2023 to June 2026 · Housing Ministry, Carte des loyers 2025 · SSMSI, recorded crime by commune, 2023–2025 · Ministry of Education (DEPP), brevet and bac results and value-added indicators, 2025 · INSEE, deaths by commune of residence 2016–2025 and censuses 2012–2023; Eurostat, death rates by age (© European Union); INSEE, BPE 2025 (care homes, emergency and maternity units, GPs, pharmacies); DREES, APL 2024; INSEE, life expectancy by département 2025 (provisional) · INSEE, BPE 2025 and Filosofi 200 m grid (walking distances) · IGN Admin Express (boundaries) · TownRatings grades: our own summary of the data, ranking French towns against each other only, updated October 30, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).

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.