Bailly grades A overall: better than 87% of compared French towns, and #5 of 91 in Yvelines. Its weakest subject is cost of living (D): at the median price, a 70 m² home costs 8.2 times the median annual income per consumption unit in the intercommunality. Its strongest is health (A+): after allowing for care homes, deaths from 2016 to 2025 were 41% below expected, against 12% below for the median of compared French towns.
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 Bailly 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.
Data highlights are ordered by what stands out in Bailly.
HealthHealth A+
Fewer deaths than Bailly’s ages would predict, 59 per 100 expected, under Yvelines’ towns and compared French towns
Care access and life expectancy are shown for context, not graded.
That puts Bailly below both Yvelines’ towns (76) and compared French towns (88). From 2016 to 2025, 227 residents of Bailly died, against 382 expected from France’s death rates at each age: 41% fewer. The care-home adjustment is a TownRatings modeling step, not an official statistic.
−41%deaths against expected, after care homesA+Health Grade
Deaths per 100 expected · 2016–2025
Raw59
Adjusted59
Median town88
Expected100
3
GPs in Bailly · 3 GP consultations a year per resident within reach (APL)
1.9 mi
to the nearest emergency department, Hopital Prive de Parly Ii
1.9 mi
to the nearest maternity unit, Hopital Prive de Parly Ii
86.8 · 82.3
years of life expectancy at birth, women · men, Yvelines, 2025 (provisional) · France 85.9 · 80.3
Incomes in Bailly run higher than in Yvelines’ towns or compared French towns: a median €43,480 a year per consumption unit
On this, Bailly is above both Yvelines’ towns (€32,600) and compared French towns (€25,970). 5.3% of the labour force are out of work. Bailly has 1,150 jobs for 1,650 working residents, 0.7 per worker.
27%walk, cycle or take transit
How working residents got to work · census 2023
Driving65%
Public transport20%
On foot5%
Motorbike or scooter4%
Bicycle3%
1,150
jobs based in Bailly, 0.7 per working resident
5.3%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€43,480
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 97% of compared French towns
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
HousingCost of living D
Estimated advertised rents run higher in Bailly than in Yvelines’ towns or across compared French towns: €20.03/m² a month
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
In the comparison, Bailly comes above both Yvelines’ towns (€18.40/m²) and compared French towns (€12.41/m²). The median price, €4,216/m², comes from 126 sales of houses and apartments in Bailly from July 2023 to June 2026. Houses in Bailly sell for €5,470/m² and apartments for €3,784/m².
€4,216/m²median sale price
Median sale price per m² · Jul 2023 to Jun 2026
Bailly€4,216/m²
Median of towns€2,430/m²
Yvelines median€3,717/m²
By type
Median per m²
Sales
Houses
€5,470/m²
47
Apartments
€3,784/m²
79
€20.03/m²
estimated advertised apartment rent a month, charges included (€16.48 to €24.33/m² a month)
8.2
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€23.73/m²
estimated advertised house rent a month, charges included
€35,910
median annual income per consumption unit, Communauté d'agglomération Versailles Grand Parc (CAVGP)
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Safety
Bailly has less crime per resident than 65% of compared French towns
Police and gendarmerie recorded 41 offenses in the graded categories in Bailly in 2025. For family violence, other physical violence, sexual violence, armed robbery and theft from vehicles, 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, 11.8% of the index here. Because that share is over 10%, this Safety Grade is less sure than most.
2.9recorded violent incidents per 1,000 residents a yearB+Safety Grade
Recorded by type · 2025
Burglary23
Criminal damage13
Vehicle theft5
Fraud21
Theft without violence9
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.
2.9
recorded violent incidents per 1,000 residents a year, 2023–2025 average
15.6
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
41
offenses recorded in the graded categories in 2025
11.8%
of the index rests on the département’s average, used where small counts aren’t published
Tour du télégraphe Chappe, située au "Trou d'Enfer": Photo: MRE78 · CC BY-SA 3.0 · Terrain domanial dit Abords du carré de Réunion: Photo: Varmin · CC BY-SA 3.0
Famous people from Bailly
Wikidata places 2 people here, but for none of them do the articles confirm Bailly as the birthplace, so nobody is listed.
People: INSEE, census 2023. Miles: center to center.
Questions about Bailly
Is Bailly safe?
It grades B+ for safety, #33 of 91 in Yvelines. In 2025 police and gendarmerie recorded 23 burglaries and 13 acts of criminal damage.
Are schools in Bailly good?
They grade B−, better than 51% of compared French towns and #21 of 94 in Yvelines. 99% of 300 candidates passed the bac at Lycée Louis de Broglie in 2025, at the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Bailly expensive to live in?
Homes cost more than in most compared French towns: the median sale price from July 2023 to June 2026 was €4,216/m², against €2,430/m² for the median of compared French towns. Incomes are higher than in most compared French towns, so Bailly grades D for cost of living.
About Bailly
Commune in Yvelines, Île-de-France
Bailly is a commune of 3,731 people in the Communauté d'agglomération Versailles Grand Parc (CAVGP). 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
3,731 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération Versailles Grand Parc (CAVGP)
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.
