Collégien’s weakest subject is safety: an average of 4.9 recorded violent incidents and 40.9 recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025. Buying in is costly: at the median price, a 70 m² home costs 8.5 times the median annual income per consumption unit in the intercommunality. Households here earn well (A+): 2.8 jobs per working resident; 8.4% unemployment. Getting around on foot or by bus is easy (A): 100% of residents live within 800 m of a bakery, and 39% of working residents walk, cycle or take public transport to work. The overall grade comes out at D, better than 14% of compared French towns. It ranks #77 of 104 in Seine-et-Marne. Schools are weaker too (D): bac results 2.6 points below the expected rate; brevet results 4.9 points below the expected rate.
Figures: employment and commuting, INSEE census 2023 · amenities, INSEE BPE 2025 · recorded crime, SSMSI (Ministry of the Interior) · prices, DVF · income per consumption unit (an income adjusted for household size), INSEE Filosofi · brevet and bac results, Ministry of Education.
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 Collégien 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 Collégien.
Safety
Recorded crime per resident is higher in Collégien than in 98% of compared French towns
4.9recorded violent incidents per 1,000 residents a yearD−Safety Grade
No compared town in Seine-et-Marne has more graded crime per resident than Collégien: it ranks last of 104. 2025 saw 137 offenses recorded in the town. With 4,350 jobs for 1,550 working residents, Collégien draws people in from neighbouring communes. Also worth knowing: more of the graded crimes here were criminal damage than anything else (2025).
Recorded by type · 2025
Criminal damage39
Theft from vehicles38
Vehicle theft26
Burglary16
Family violence9
Other physical violence9
Theft without violence100
Fraud35
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.
4.9
recorded violent incidents per 1,000 residents a year, 2023–2025 average
40.9
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
137
offenses recorded in the graded categories in 2025
2.9%
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 sexual violence and 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, 2.9% of the index here. The count covers the offense categories the Safety Grade uses. Crimes are counted in the commune where they happen, then divided by its residents, so a town that draws people in from around can look higher.
Work & commuteJobs & income A+
More commuters in Collégien walk, cycle or take the bus or train than in Seine-et-Marne’s towns or compared French towns: 39.3%
39%walk, cycle or take transit
Nearly a tenth of the labour force were unemployed, below both Seine-et-Marne’s towns (9.6%) and compared French towns (10.1%). Households’ median disposable income: €30,580 a year per consumption unit. At the census, 1.8% of working residents in Collégien didn’t travel to work at all.
How working residents got to work · census 2023
Driving57%
Public transport35%
On foot3%
Motorbike or scooter2%
Bicycle1%
4,350
jobs based in Collégien, 2.8 per working resident
8.4%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€30,580
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 94% 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 Collégien than in Seine-et-Marne’s towns or across compared French towns: €19.16/m² a month
€3,676/m²median sale price
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
Houses in Collégien sell for €4,059/m² and apartments for €3,574/m². Half the homes sold went for more than €3,676/m², higher than both Seine-et-Marne’s towns (€3,093/m²) and compared French towns (€2,430/m²). Among the homes sold, 35% were houses.
Median sale price per m² · Jul 2023 to Jun 2026
Collégien€3,676/m²
Median of towns€2,430/m²
Seine-et-Marne median€3,093/m²
By type
Median per m²
Sales
Houses
€4,059/m²
44
Apartments
€3,574/m²
80
€19.16/m²
estimated advertised apartment rent a month, charges included (€15.92 to €23.07/m² a month)
8.5
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€15.29/m²
estimated advertised house rent a month, charges included
€30,120
median annual income per consumption unit, Communauté d'agglomération Marne et Gondoire
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Who lives here
Collégien has fewer older residents than Seine-et-Marne’s towns or compared French towns: 14% are 65 or over
39.6median age
21% are under 15, higher than both Seine-et-Marne’s towns (20%) and compared French towns (17%). Aged 15 to 24: just over one in ten residents. Graduates make up 40% of adults.
CollégienSeine-et-Marne 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%
Baccalauréat18%
Higher education40%
Women and men · all residents
50% women, 50% men
WomenFrance medianMen
About an even split. Median share of women: Seine-et-Marne 51.4%, France 51.8%.
INSEE, census 2023 · Seine-et-Marne median and France median: the median of compared communes
Schools
Schools around Collégien do less well than those of 85% of compared French towns
94%passed the bac (general and technological)DSchool Grade
Primary schools aren’t graded: France doesn’t publish their results by school.
For exam results, it comes #68 of 114 in Seine-et-Marne. Collège pupils travel 0.6 mi to the nearest one. 92.7% of candidates passed the bac at the lycées within 5 km of Collégien, higher than Seine-et-Marne’s towns (90.8%) and near compared French towns (92.9%).
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
History
1 historic monument in Collégien, none of them classé
1historic monument
France has no History Grade yet: this card describes, it doesn’t grade.
2.6% of its homes were built before 1919, below Seine-et-Marne’s towns (5.4%) and compared French towns (7.4%) alike. Its oldest listed monument dates from the 15th century.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
HealthHealth C+
Collégien’s death rate, adjusted for age and care homes, is higher than in 56% of compared French towns
−10%deaths against expected, after care homesC+Health Grade
Care access and life expectancy are shown for context, not graded.
France’s death rates at each age would predict 142 deaths in Collégien from 2016 to 2025; there were 128, 10% fewer. In Seine-et-Marne, women can expect to live 85.4 years and men 81 (2025), against 85.9 and 80.3 across France. Adjusted mortality in the town: 90 deaths for every 100 expected.
Deaths per 100 expected · 2016–2025
Raw90
Adjusted90
Median town88
Expected100
0
GPs in Collégien · 3.8 GP consultations a year per resident within reach (APL)
3.9 mi
to the nearest emergency department, Hopital Prive de Marne Chantereine
4.5 mi
to the nearest maternity unit, Grand Hosp Est Francilien Marne la Vallee site Jossigny
85.4 · 81
years of life expectancy at birth, women · men, Seine-et-Marne, 2025 (provisional) · France 85.9 · 80.3
Collégien is a commune of 3,354 people in the Communauté d'agglomération Marne et Gondoire. 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
3,354 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération Marne et Gondoire
Département
Seine-et-Marne (77)
Région
Île-de-France
Area
1.3 sq mi (3.4 km²)
INSEE code
77121
Collégien’s neighbors
The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →
People: INSEE, census 2023. Miles: center to center.
Questions about Collégien
Is Collégien safe?
It grades D− for safety. In 2025 police and gendarmerie recorded 16 burglaries and 39 acts of criminal damage.
Are schools in Collégien good?
They grade D, better than 15% of compared French towns and #68 of 114 in Seine-et-Marne. 88% of 148 candidates passed the bac at Lycée Jean Moulin in 2025, 4 points below the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Collégien expensive to live in?
Incomes are higher than in most compared French towns, so Collégien grades D for cost of living.
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.