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Conflans-Sainte-Honorine (78) Quai de la République 389
France›Yvelines›Île-de-France

Conflans-Sainte-HonorineYvelines

A town of 36,958 in Yvelines, Île-de-France.

6 places within 18 miMap →
Photo: GFreihalter · CC BY-SA 4.0
Conflans-Sainte-Honorine (78) Quai de la République 389

Conflans-Sainte-Honorine, Yvelines · GFreihalter · CC BY-SA 4.0

Is Conflans-Sainte-Honorine a good place to live?

Conflans-Sainte-Honorine grades C− overall: better than 15% of compared French towns, and #82 of 91 in Yvelines. Its weakest subject is cost of living (D−): at the median price, a 70 m² home costs 9.9 times the median annual income per consumption unit in the intercommunality. Its strongest is walkability (A+): 97% of residents live within 800 m of a bakery, and 50% 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 Conflans-Sainte-Honorine stand out

The one thing Conflans-Sainte-Honorine does most differently from other towns.

Picked automatically from the data

How Conflans-Sainte-Honorine grades

Each subject compares Conflans-Sainte-Honorine 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 →

Église Saint-Maclou
Église Saint-Maclou · Classé · Photo: Nitot · CC BY-SA 3.0
Conflans-Sainte-Honorine’s story

Conflans-Sainte-Honorine in pictures

The Culture ministry lists 3 historic monuments in Conflans-Sainte-Honorine: 2 classé (France’s highest heritage protection) and 1 inscrit (the second level).

The oldest protected part dates from the 9th century; the first monument here was protected in 1950.

3.7% of its homes were built before 1919, against 7.4% in the median compared French town.

Michel-Ange-André Le Roux Deshauterayes, born in 1724, is the one person born in Conflans-Sainte-Honorine before 1900 that Wikidata records.

  • 1950First protected: Prieuré (ancien)
  • 1997Most recently protected: Tour Montjoie
Explore the history →
Nearby attractions

Musée de la batellerie et des voies navigables de Conflans-Sainte-Honorine and 26 more in and around Conflans-Sainte-Honorine

Other places to visit, heritage and family days out in and near Conflans-Sainte-Honorine. Best known first.

All attractions →
Places: © OpenStreetMap contributors · Wikidata

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

Photo credits (2)

The data

Data highlights are ordered by what stands out in Conflans-Sainte-Honorine.

HousingCost of living D−

The median sale price of homes in Conflans-Sainte-Honorine is €3,780/m²

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

That is the middle of 1,184 sales of houses and apartments in Conflans-Sainte-Honorine from July 2023 to June 2026, against €2,430/m² for the median of compared French towns and €3,717/m² for the median of compared towns in Yvelines.

€3,780/m²median sale price

Median sale price per m² · Jul 2023 to Jun 2026

Conflans-Sainte-Honorine€3,780/m²
Median of towns€2,430/m²
Yvelines median€3,717/m²
By typeMedian per m²Sales
Houses€4,250/m²651
Apartments€3,207/m²533
€18.31/m²
estimated advertised apartment rent a month, charges included (€15.63 to €21.46/m² a month)
9.9
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€16.92/m²
estimated advertised house rent a month, charges included
€26,750
median annual income per consumption unit, Communauté urbaine Grand Paris Seine et Oise

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

Work & commuteJobs & income B+

Conflans-Sainte-Honorine is easier to get around on foot than 96% of compared French towns

50.0% of commuters walked, cycled or took the bus or train at the census, above both Yvelines’ towns (35.4%) and compared French towns (13.4%). The median disposable income is €30,870 a year per consumption unit. Conflans-Sainte-Honorine has 9,100 jobs for 17,000 working residents, 0.5 per worker.

50%walk, cycle or take transit

How working residents got to work · census 2023

Public transport45%
Driving44%
On foot4%
Motorbike or scooter1%
Bicycle1%
9,100
jobs based in Conflans-Sainte-Honorine, 0.5 per working resident
9.6%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€30,870
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 96% of compared French towns

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

Schools

79.2% of candidates passed the brevet at the 15 collèges within 5 km, 6.6 points below the expected rate

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

The bac pass rate near Conflans-Sainte-Honorine is 86.5%, below both Yvelines’ towns (93.9%) and compared French towns (92.9%).

91%passed the bac (general and technological)D−School Grade

Brevet pass rate · collèges within 5 km

Conflans-Sainte-Honorine79.2%
Median of towns87.5%

Bac pass rate · lycées within 5 km

Conflans-Sainte-Honorine86.5%
Median of towns92.9%
SchoolLevelCandidatesPassed, 2025
Collège Les Hautes RayesNearest collègeCollègeCollège12875%−11 pts
Lycée Jules FerryNearest lycéeGeneral lycéeGeneral lycée41094%−2 pts
Collège Le Petit BoisBest against expectations: 10 points above the expected rateCollègeCollège9987%+10 pts

See all 23 schools →

91%
passed the general and technological bac, −3 pts against the expected rate
71%
passed the vocational bac, −8.1 pts against the expected rate
79.2%
passed the brevet at the collèges, −6.6 pts against the expected rate
0.7 mi
to the nearest collège from the town center

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

Who lives here

A younger town: only 16% of residents are 65 or over

12% of residents are 15 to 24 and 16% are 65 or over, against 12% and 17% in the median compared commune of Yvelines. 45% of adults who have left education hold a higher-education diploma (Yvelines 49%, France 30%).

39.1median age
Conflans-Sainte-HonorineYvelines medianFrance median

Ages · share of residents

Highest diploma · residents 15 and older who have left education

No diploma17%
CAP or BEP18%
Baccalauréat16%
Higher education45%

Women and men · all residents

52% women, 48% men

About 93 men for every 100 women. Median share of women: Yvelines 51.6%, France 51.8%.

Ages and diplomas in Conflans-Sainte-Honorine
Conflans-Sainte-HonorineYvelines medianFrance median
Under 1520%20%17%
15–2412%12%11%
25–4428%25%23%
45–6425%26%26%
65+16%17%22%
No diploma17%13%19%
CAP or BEP18%16%26%
Baccalauréat16%16%18%
Higher education45%49%30%

INSEE, census 2023 · Yvelines median and France median: the median of compared communes

Safety

Conflans-Sainte-Honorine has more crime per resident than 68% of compared French towns

Police and gendarmerie recorded 886 offenses in the graded categories in Conflans-Sainte-Honorine 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, 0.1% of the index here.

9recorded violent incidents per 1,000 residents a yearCSafety Grade

Recorded by type · 2025

Criminal damage253
Family violence154
Theft from vehicles122
Burglary121
Other physical violence94
Vehicle theft87
Sexual violence55
Theft without violence254
Fraud247
Drug use170

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.

9
recorded violent incidents per 1,000 residents a year, 2023–2025 average
16.8
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
886
offenses recorded in the graded categories in 2025
0.1%
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

3 historic monuments, 2 classé

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

The Culture ministry lists 3 historic monuments in Conflans-Sainte-Honorine: 2 classé (France’s highest heritage protection) and 1 inscrit (the second level). 3.7% of its homes were built before 1919, against 7.4% in the median compared French town.

3historic monuments

Monuments by protection · Mérimée

Classé2
Inscrit1

Among them · Classé

9th c.
oldest protected part
1950
first monument protected

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

HealthHealth B−

Allowing for age and care homes, Conflans-Sainte-Honorine sees 87 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, 3,040 residents of Conflans-Sainte-Honorine died, against 2,989 expected from France’s death rates at each age: 2% more. Its four care homes for older people (456 places) count their residents as Conflans-Sainte-Honorine’s; allowing for them, deaths were 13% below expected. The care-home adjustment is a TownRatings modeling step, not an official statistic.

−13%deaths against expected, after care homesB−Health Grade

Deaths per 100 expected · 2016–2025

Raw102
Adjusted87
Median town88
Expected100
21
GPs in Conflans-Sainte-Honorine · 2.4 GP consultations a year per resident within reach (APL)
4.1 mi
to the nearest emergency department, Plyclinique de Maisons Laffitte Ex Hopital des Courses
4.4 mi
to the nearest maternity unit, Hopital Novo site Pontoise
86.8 · 82.3
years of life expectancy at birth, women · men, Yvelines, 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

Keep exploring

Everything we know about Conflans-Sainte-Honorine

15pages on Conflans-Sainte-Honorine

Landmarks

The Culture ministry lists 3 historic monuments in Conflans-Sainte-Honorine: 2 classé (France’s highest heritage protection) and 1 inscrit (the second level).

All monuments →
Photo credits

Tour Montjoie: Photo: Nitot · CC BY-SA 3.0 · Prieuré (ancien): Photo: Nitot · CC BY-SA 3.0

Famous people from Conflans-Sainte-Honorine

16 notable people were born in Conflans-Sainte-Honorine.

See all 16 →
Photo credits

Fodé Ballo-Touré: Werner100359, CC BY-SA 4.0 · Nicolas Roche: Laurie Beylier, CC BY-SA 2.0 · Dominique Gillot: Omar95, Public domain · Éric Pliez: Caroline Léna Becker, CC BY-SA 4.0 · Alex Jaffray: YanRB, CC BY-SA 4.0 · Arnaud Leveau: Anlanbkk, CC BY-SA 3.0

Conflans-Sainte-Honorine’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 Yvelines →
Éragny-sur-OiseMaurecourtHerblay-sur-SeineAndrésyPierrelayeJouy-le-MoutierÉragny-sur-OiseMaurecourtHerblay-sur-SeineAndrésyPierrelayeJouy-le-MoutierConflans-Sainte-Honorine
How the neighbors grade
TownPeopleMilesOverallCostSafetyHealth
Conflans-Sainte-Honorine36,958—C−D−CB−
Éragny-sur-Oise Val-d'Oise18,4361.4C−DCB+
Maurecourt4,4541.7B−D−AA−
Herblay-sur-Seine Val-d'Oise31,7792.4C−DCA−
Andrésy13,8342.4C+DB−A
Pierrelaye Val-d'Oise10,1302.9D−DDC
Jouy-le-Moutier Val-d'Oise17,8542.9C−DB+C+

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

Questions about Conflans-Sainte-Honorine

Is Conflans-Sainte-Honorine safe?

It grades C for safety, #79 of 91 in Yvelines. In 2025 police and gendarmerie recorded 121 burglaries and 253 acts of criminal damage.

Are schools in Conflans-Sainte-Honorine good?

They grade D−, better than 4% of compared French towns and #88 of 94 in Yvelines. 94% of 410 candidates passed the bac at Lycée Jules Ferry 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 Conflans-Sainte-Honorine expensive to live in?

By type: houses €4,250/m² (651 sales), apartments €3,207/m² (533 sales). Estimated advertised apartment rents are €18.31/m² a month, charges included. Incomes are higher than in most compared French towns, so Conflans-Sainte-Honorine grades D− for cost of living.

About Conflans-Sainte-Honorine

Commune in Yvelines, Île-de-France

Conflans-Sainte-Honorine is a commune of 36,958 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

Population
36,958 (INSEE, census 2023)
Intercommunality
Communauté urbaine Grand Paris Seine et Oise
Département
Yvelines (78)
Région
Île-de-France
Area
3.8 sq mi (9.9 km²)
INSEE code
78172

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.