2026 comparison
Fontenay-sous-Bois vs Rosny-sous-Bois: 2026 comparison
Fontenay-sous-Bois has more inhabitants than Rosny-sous-Bois: 54,209 versus 47,368, or 14% more. Rosny-sous-Bois covers a larger area (5.9 km² versus 5.6 km²), but Fontenay-sous-Bois is more densely populated: 9,715 inhabitants per km² versus 8,015.
The median apartment price is higher in Fontenay-sous-Bois: €6,000 per m² versus €3,864. The median standard of living is higher in Fontenay-sous-Bois (€29,690 a year versus €24,250).
The two cities are 2.9 km apart as the crow flies, in the same urban unit (Paris).
Fontenay-sous-Bois
City in Val-de-Marne
- Population
- 54,209 inhab.
- 118th in France · 8th in its department
- Area
- 5.6 km²
- Density
- 9,715 per km²
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Rosny-sous-Bois
City in Seine-Saint-Denis
FSeine-Saint-Denis93Île-de-France
- Population
- 47,368 inhab.
- 148th in France · 15th in its department
- Area
- 5.9 km²
- Density
- 8,015 per km²
Population
Population and demographics
Municipal population since 1876
Fontenay-sous-BoisRosny-sous-Bois
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Population inhab.More populous: Fontenay-sous-Bois+14% | 54,209 | 47,368 | More populous: Fontenay-sous-Bois+14% |
| Change over 5 yearsStronger growth: Fontenay-sous-Bois+0.4 pt | +2.9% | +2.5% | Stronger growth: Fontenay-sous-Bois+0.4 pt |
| Change over 10 yearsStronger growth: Rosny-sous-Bois+6.5 pts | +1.2% | +7.7% | Stronger growth: Rosny-sous-Bois+6.5 pts |
| Density per km²Denser: Fontenay-sous-Bois+21% | 9,715 | 8,015 | Denser: Fontenay-sous-Bois+21% |
| Under 15More young people: Rosny-sous-Bois+2.0 pts | 19.1% | 21.1% | More young people: Rosny-sous-Bois+2.0 pts |
| 65 and overMore seniors: Fontenay-sous-Bois+2.9 pts | 15.9% | 13.0% | More seniors: Fontenay-sous-Bois+2.9 pts |
| People per householdLarger households: Rosny-sous-Bois+0.03 | 2.30 | 2.33 | Larger households: Rosny-sous-Bois+0.03 |
Sources: INSEE, official population figures, INSEE, censuses, INSEE, census
Housing
Real estate prices and housing
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Median apartment price €/m²More expensive: Fontenay-sous-Bois+55% | 6,000 | 3,864 | More expensive: Fontenay-sous-Bois+55% |
| Median house price €/m²More expensive: Fontenay-sous-Bois+50% | 7,329 | 4,880 | More expensive: Fontenay-sous-Bois+50% |
| Apartment rent €/m² per month, utilities includedMore expensive: Fontenay-sous-Bois+11% | 22.9 | 20.6 | More expensive: Fontenay-sous-Bois+11% |
| House rent €/m² per month, utilities includedMore expensive: Fontenay-sous-Bois+8% | 19.6 | 18.1 | More expensive: Fontenay-sous-Bois+8% |
| Homeowner householdsMore homeowners: Fontenay-sous-Bois+6.6 pts | 50.2% | 43.6% | More homeowners: Fontenay-sous-Bois+6.6 pts |
| Share of housesMore houses: Fontenay-sous-Bois+7.6 pts | 23.5% | 15.9% | More houses: Fontenay-sous-Bois+7.6 pts |
| Social housing (SRU law) share of primary residencesMore social housing: Fontenay-sous-Bois+5.8 pts | 34.9% | 29.2% | More social housing: Fontenay-sous-Bois+5.8 pts |
| Second homesMore second homes: Rosny-sous-Bois+1.5 pt | 1.1% | 2.5% | More second homes: Rosny-sous-Bois+1.5 pt |
| Vacant homesMore vacant homes: Rosny-sous-Bois+4.0 pts | 5.9% | 9.9% | More vacant homes: Rosny-sous-Bois+4.0 pts |
| Property tax (combined rate)Higher rate: Fontenay-sous-Bois+3.0 pts | 40.69% | 37.70% | Higher rate: Fontenay-sous-Bois+3.0 pts |
Sources: DGFiP (DVF), Ministry of Housing (rent map), INSEE, census, Ministry for the Ecological Transition (SRU), DGFiP, local taxation
Income and jobs
Residents’ income and jobs
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Median standard of living €/yearHigher: Fontenay-sous-Bois+22% | 29,690 | 24,250 | Higher: Fontenay-sous-Bois+22% |
| Poverty rateHigher: Rosny-sous-Bois+7.0 pts | 15.5% | 22.5% | Higher: Rosny-sous-Bois+7.0 pts |
| Average taxable income per householdHigher: Fontenay-sous-Bois+30% | €40,756 | €31,359 | Higher: Fontenay-sous-Bois+30% |
| Households paying income taxMore taxpaying households: Fontenay-sous-Bois+8.7 pts | 55% | 46% | More taxpaying households: Fontenay-sous-Bois+8.7 pts |
| Activity rate (ages 15-64)Higher: Fontenay-sous-Bois+1.3 pt | 78.5% | 77.2% | Higher: Fontenay-sous-Bois+1.3 pt |
| Unemployment rate (census)Higher: Rosny-sous-Bois+2.7 pts | 10.8% | 13.5% | Higher: Rosny-sous-Bois+2.7 pts |
Sources: INSEE, Filosofi, DGFiP, income tax, INSEE, census
Local life
Town hall and fiber internet
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Mayor | Jean-Philippe Gautrais | Magalie Thibault | |
| Political label of the mayor’s list (2026 local elections)Same | union of the left | union of the left | Same |
| Premises with fiberBetter covered: Fontenay-sous-Bois+1.1 pt | 96% | 95% | Better covered: Fontenay-sous-Bois+1.1 pt |
Sources: Ministry of the Interior, register of elected officials, Ministry of the Interior, Arcep
Shops and facilities
Shops, leisure and transportation
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Shops per 10,000 inhab.More shops per capita: Rosny-sous-Bois+86% | 34.9189 in total | 65.0308 in total | More shops per capita: Rosny-sous-Bois+86% |
| Food shops per 10,000 inhab.More per capita: Fontenay-sous-Bois+6% | 15.986 in total | 15.071 in total | More per capita: Fontenay-sous-Bois+6% |
| Restaurants per 10,000 inhab.More per capita: Rosny-sous-Bois+14% | 30.1163 in total | 34.4163 in total | More per capita: Rosny-sous-Bois+14% |
| Sports facilities per 10,000 inhab.More per capita: Rosny-sous-Bois+6% | 9.652 in total | 10.148 in total | More per capita: Rosny-sous-Bois+6% |
| Cultural venues per 10,000 inhab.More per capita: Rosny-sous-Bois+53% | 1.16 in total | 1.78 in total | More per capita: Rosny-sous-Bois+53% |
| Hotels per 10,000 inhab.More per capita: Fontenay-sous-Bois+46% | 0.95 in total | 0.63 in total | More per capita: Fontenay-sous-Bois+46% |
| Passenger train stationsTie | 2 | 2 | Tie |
Number of facilities per 10,000 inhabitants (total count in small print). Source: INSEE, facilities database (BPE)
Health
Health care
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Access to general practitioners visits/inhab./year localized potential accessibilityBetter access: Fontenay-sous-Bois+45% | 3.7 | 2.5 | Better access: Fontenay-sous-Bois+45% |
| General practitioners per 10,000 inhab.More per capita: Rosny-sous-Bois+6% | 5.027 in total | 5.325 in total | More per capita: Rosny-sous-Bois+6% |
| Medical specialists per 10,000 inhab.More per capita: Rosny-sous-Bois2.1 times as high | 9.451 in total | 19.693 in total | More per capita: Rosny-sous-Bois2.1 times as high |
| Dentists per 10,000 inhab.More per capita: Fontenay-sous-Bois+4% | 6.837 in total | 6.531 in total | More per capita: Fontenay-sous-Bois+4% |
| Pharmacies per 10,000 inhab.More per capita: Fontenay-sous-Bois+3% | 2.413 in total | 2.311 in total | More per capita: Fontenay-sous-Bois+3% |
| HospitalsMore facilities: Fontenay-sous-Bois+1 | 3 | 2 | More facilities: Fontenay-sous-Bois+1 |
Practitioners and facilities per 10,000 inhabitants (total count in small print); access to doctors includes those in neighboring communes. Sources: Ministry of Health (DREES), APL, INSEE, facilities database (BPE), Ministry of Health (Finess)
Education
Schools and colleges
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Primary schoolsMore schools: Fontenay-sous-Bois+3 | 25 | 22 | More schools: Fontenay-sous-Bois+3 |
| Middle schoolsMore middle schools: Rosny-sous-Bois+1 | 4 | 5 | More middle schools: Rosny-sous-Bois+1 |
| High schoolsTie | 2 | 2 | Tie |
| Higher education institutions and programsTie | 2 | 2 | Tie |
Sources: Ministry of Education, INSEE, facilities database (BPE)
Recorded crime
Offenses recorded by the police
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Home burglaries per 1,000 homesHigher rate: Fontenay-sous-Bois+72% | 8.8 | 5.1 | Higher rate: Fontenay-sous-Bois+72% |
| Non-violent thefts per 1,000 inhab.Higher rate: Rosny-sous-Bois+92% | 10.9 | 20.9 | Higher rate: Rosny-sous-Bois+92% |
| Physical violence outside the family per 1,000 inhab.Higher rate: Rosny-sous-Bois+57% | 2.9 | 4.5 | Higher rate: Rosny-sous-Bois+57% |
| Vehicle thefts per 1,000 inhab.Higher rate: Rosny-sous-Bois+22% | 2.6 | 3.2 | Higher rate: Rosny-sous-Bois+22% |
| Vandalism and property damage per 1,000 inhab.Higher rate: Rosny-sous-Bois+42% | 7.8 | 11.1 | Higher rate: Rosny-sous-Bois+42% |
Offenses recorded in the commune by the police and gendarmerie, per 1,000 inhabitants (per 1,000 homes for burglaries); this is not the actual crime level. Rates for the latest published year. Source: Ministry of the Interior (SSMSI)
Climate
Temperature, sunshine and rain
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Average temperatureWarmer: Fontenay-sous-Bois+0.6 °C | 12.9°C | 12.3°C | Warmer: Fontenay-sous-Bois+0.6 °C |
| Sunshine h/yearSunnier: Fontenay-sous-Bois+5% | 1,717 | 1,634 | Sunnier: Fontenay-sous-Bois+5% |
| Rainfall mm/yearWetter: Rosny-sous-Bois+10% | 654 | 721 | Wetter: Rosny-sous-Bois+10% |
| Rainy days days/year at least 1 mmTie | 118 | 118 | Tie |
| Frost days days/yearMore frost days: Rosny-sous-Bois+10 days/year | 31 | 41 | More frost days: Rosny-sous-Bois+10 days/year |
| Very hot days days/year 30 °C or moreMore hot days: Fontenay-sous-Bois+4 days/year | 21 | 17 | More hot days: Fontenay-sous-Bois+4 days/year |
Climate normals from the reference Météo-France station of each commune. Source: Météo-France, climate normals
Natural hazards
Natural disasters and prevention
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Natural disasters declared since 1982More declarations: Rosny-sous-Bois+6 | 14 | 20 | More declarations: Rosny-sous-Bois+6 |
| Natural hazard prevention plansTie | 1 | 1 | Tie |
| Radon potentialSame | Low | Low | Same |
Sources: Géorisques (GASPAR), IRSN
Land
Area, terrain and administrative areas
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois | Difference |
|---|---|---|---|
| Area km²Larger: Rosny-sous-Bois+6% | 5.58 | 5.91 | Larger: Rosny-sous-Bois+6% |
| Town hall elevationHigher: Fontenay-sous-Bois+22 m | 101 m | 79 m | Higher: Fontenay-sous-Bois+22 m |
| Coastal communeSame | No | No | Same |
| Density grid (INSEE)Same | Large urban centre | Large urban centre | Same |
| Department | Val-de-Marne (94) | Seine-Saint-Denis (93) | |
| IntercommunalitySame | Métropole du Grand Paris | Métropole du Grand Paris | Same |
| Urban unitSame | Paris | Paris | Same |
| Functional areaSame | Paris | Paris | Same |
Sources: IGN, IGN, elevation, Ministry for the Ecological Transition, Loi Littoral, INSEE, density grid, INSEE, COG, INSEE, geographic classifications
Summary
Fontenay-sous-Bois vs Rosny-sous-Bois at a glance
| Criterion | Fontenay-sous-Bois | Rosny-sous-Bois |
|---|---|---|
| Population inhab. | 54,209 | 47,368 |
| Change over 10 years | +1.2% | +7.7% |
| Density per km² | 9,715 | 8,015 |
| Median apartment price €/m² | 6,000 | 3,864 |
| Median house price €/m² | 7,329 | 4,880 |
| Apartment rent €/m² | 22.9 | 20.6 |
| Property tax (combined rate) | 40.69% | 37.70% |
| Median standard of living €/year | 29,690 | 24,250 |
| Unemployment rate (census) | 10.8% | 13.5% |
| Premises with fiber | 96% | 95% |
| Access to general practitioners visits/inhab./year | 3.7 | 2.5 |
| Home burglaries per 1,000 homes | 8.8 | 5.1 |
| Average temperature | 12.9°C | 12.3°C |
| Sunshine h/year | 1,717 | 1,634 |
| Area km² | 5.58 | 5.91 |
More comparisons
Compare with other towns
FAQ
Fontenay-sous-Bois vs Rosny-sous-Bois: your questions
Which is the larger city, Fontenay-sous-Bois or Rosny-sous-Bois?
By population, Fontenay-sous-Bois: 54,209 inhabitants versus 47,368 for Rosny-sous-Bois (official population figures in force on January 1, 2026). Fontenay-sous-Bois is the 118th largest city in France, Rosny-sous-Bois the 148th. By area, Rosny-sous-Bois is the larger (5.9 km²).
How far is Fontenay-sous-Bois from Rosny-sous-Bois?
Fontenay-sous-Bois and Rosny-sous-Bois are 2.9 km apart as the crow flies, between the centers of the two communes.
Where is real estate more expensive, in Fontenay-sous-Bois or Rosny-sous-Bois?
To buy an apartment, Fontenay-sous-Bois is more expensive: €6,000 per m² (median price), versus €3,864 in Rosny-sous-Bois (+55%). Median prices of sales over the last five years (DGFiP, DVF).
Where is the standard of living higher, in Fontenay-sous-Bois or Rosny-sous-Bois?
In Fontenay-sous-Bois, half of the residents have a standard of living above €29,690 a year, versus €24,250 in Rosny-sous-Bois (disposable income per consumption unit, INSEE).
Which city is sunnier, Fontenay-sous-Bois or Rosny-sous-Bois?
Fontenay-sous-Bois: 1,717 hours of sunshine a year on average, versus 1,634 in Rosny-sous-Bois (climate normals from the reference Météo-France station of each town).
Official population figures in force on January 1, 2026. Source: INSEE, official population figures