2026 comparison
Le Plessis-Robinson vs Massy (91): 2026 comparison
Massy has more inhabitants than Le Plessis-Robinson: 52,023 versus 29,016, or 79% more. Massy covers a larger area (9.4 km² versus 3.4 km²), but Le Plessis-Robinson is more densely populated: 8,459 inhabitants per km² versus 5,517.
The median apartment price is higher in Le Plessis-Robinson: €5,972 per m² versus €4,375. The median standard of living is higher in Le Plessis-Robinson (€35,370 a year versus €27,350).
The two cities are 6.2 km apart as the crow flies, in the same urban unit (Paris).
Le Plessis-Robinson
City in Hauts-de-Seine
FHauts-de-Seine92Île-de-France
- Population
- 29,016 inhab.
- 307th in France · 25th in its department
- Area
- 3.4 km²
- Density
- 8,459 per km²
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Massy
City in Essonne
- Population
- 52,023 inhab.
- 128th in France · 3rd in its department
- Area
- 9.4 km²
- Density
- 5,517 per km²
Population
Population and demographics
Municipal population since 1876
Le Plessis-RobinsonMassy
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Population inhab.More populous: Massy+79% | 29,016 | 52,023 | More populous: Massy+79% |
| Change over 5 yearsStronger growth: Massy+4.9 pts | −2.8% | +2.2% | Stronger growth: Massy+4.9 pts |
| Change over 10 yearsStronger growth: Massy+11 pts | +1.2% | +12.7% | Stronger growth: Massy+11 pts |
| Density per km²Denser: Le Plessis-Robinson+53% | 8,459 | 5,517 | Denser: Le Plessis-Robinson+53% |
| Under 15More young people: Massy+0.9 pt | 18.1% | 19.0% | More young people: Massy+0.9 pt |
| 65 and overMore seniors: Le Plessis-Robinson+3.3 pts | 16.5% | 13.2% | More seniors: Le Plessis-Robinson+3.3 pts |
| People per householdLarger households: Massy+0.01 | 2.15 | 2.16 | Larger households: Massy+0.01 |
Sources: INSEE, official population figures, INSEE, censuses, INSEE, census
Housing
Real estate prices and housing
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Median apartment price €/m²More expensive: Le Plessis-Robinson+37% | 5,972 | 4,375 | More expensive: Le Plessis-Robinson+37% |
| Median house price €/m²More expensive: Le Plessis-Robinson+47% | 7,038 | 4,788 | More expensive: Le Plessis-Robinson+47% |
| Apartment rent €/m² per month, utilities includedMore expensive: Le Plessis-Robinson+18% | 23.8 | 20.1 | More expensive: Le Plessis-Robinson+18% |
| House rent €/m² per month, utilities includedMore expensive: Le Plessis-Robinson+30% | 21.6 | 16.6 | More expensive: Le Plessis-Robinson+30% |
| Homeowner householdsMore homeowners: Le Plessis-Robinson+10 pts | 49.4% | 39.2% | More homeowners: Le Plessis-Robinson+10 pts |
| Share of housesMore houses: Le Plessis-Robinson+0.5 pt | 10.1% | 9.6% | More houses: Le Plessis-Robinson+0.5 pt |
| Social housing (SRU law) share of primary residencesMore social housing: Massy+0.3 pt | 35.4% | 35.7% | More social housing: Massy+0.3 pt |
| Second homesMore second homes: Massy+1.4 pt | 1.5% | 2.9% | More second homes: Massy+1.4 pt |
| Vacant homesMore vacant homes: Le Plessis-Robinson+1.2 pt | 5.3% | 4.1% | More vacant homes: Le Plessis-Robinson+1.2 pt |
| Property tax (combined rate)Higher rate: Le Plessis-Robinson+5.5 pts | 37.77% | 32.32% | Higher rate: Le Plessis-Robinson+5.5 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 | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Median standard of living €/yearHigher: Le Plessis-Robinson+29% | 35,370 | 27,350 | Higher: Le Plessis-Robinson+29% |
| Poverty rateHigher: Massy+11 pts | 6.8% | 18.0% | Higher: Massy+11 pts |
| Average taxable income per householdHigher: Le Plessis-Robinson+48% | €49,454 | €33,483 | Higher: Le Plessis-Robinson+48% |
| Households paying income taxMore taxpaying households: Le Plessis-Robinson+16 pts | 71% | 55% | More taxpaying households: Le Plessis-Robinson+16 pts |
| Activity rate (ages 15-64)Higher: Le Plessis-Robinson+1.1 pt | 81.1% | 80.0% | Higher: Le Plessis-Robinson+1.1 pt |
| Unemployment rate (census)Higher: Massy+3.5 pts | 6.8% | 10.4% | Higher: Massy+3.5 pts |
Sources: INSEE, Filosofi, DGFiP, income tax, INSEE, census
Local life
Town hall and fiber internet
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Mayor | Philippe Pemezec | Nicolas Samsoen | |
| Political label of the mayor’s list (2026 local elections) | Les Républicains | union of the centre | |
| Premises with fiberBetter covered: Massy+2.4 pts | 95% | 97% | Better covered: Massy+2.4 pts |
Sources: Ministry of the Interior, register of elected officials, Ministry of the Interior, Arcep
Shops and facilities
Shops, leisure and transportation
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Shops per 10,000 inhab.More shops per capita: Massy+24% | 27.279 in total | 33.6175 in total | More shops per capita: Massy+24% |
| Food shops per 10,000 inhab.More per capita: Massy+72% | 7.622 in total | 13.168 in total | More per capita: Massy+72% |
| Restaurants per 10,000 inhab.More per capita: Massy2.5 times as high | 10.731 in total | 26.5138 in total | More per capita: Massy2.5 times as high |
| Sports facilities per 10,000 inhab.More per capita: Massy+22% | 9.327 in total | 11.359 in total | More per capita: Massy+22% |
| Cultural venues per 10,000 inhab.More per capita: Le Plessis-Robinson+2% | 1.44 in total | 1.37 in total | More per capita: Le Plessis-Robinson+2% |
| Hotels per 10,000 inhab.More per capita: Massy+67% | 0.72 in total | 1.26 in total | More per capita: Massy+67% |
| Passenger train stationsMore stations: Massy+3 | 0 | 3 | More stations: Massy+3 |
Number of facilities per 10,000 inhabitants (total count in small print). Source: INSEE, facilities database (BPE)
Health
Health care
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Access to general practitioners visits/inhab./year localized potential accessibilityBetter access: Massy+35% | 2.5 | 3.3 | Better access: Massy+35% |
| General practitioners per 10,000 inhab.More per capita: Le Plessis-Robinson+8% | 8.324 in total | 7.740 in total | More per capita: Le Plessis-Robinson+8% |
| Medical specialists per 10,000 inhab.More per capita: Massy6.5 times as high | 5.917 in total | 38.1198 in total | More per capita: Massy6.5 times as high |
| Dentists per 10,000 inhab.More per capita: Massy2.1 times as high | 3.410 in total | 7.338 in total | More per capita: Massy2.1 times as high |
| Pharmacies per 10,000 inhab.More per capita: Le Plessis-Robinson+14% | 2.47 in total | 2.111 in total | More per capita: Le Plessis-Robinson+14% |
| HospitalsMore facilities: Massy+1 | 1 | 2 | More facilities: Massy+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 | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Primary schoolsMore schools: Massy+16 | 13 | 29 | More schools: Massy+16 |
| Middle schoolsMore middle schools: Massy+4 | 3 | 7 | More middle schools: Massy+4 |
| High schoolsMore high schools: Massy+2 | 2 | 4 | More high schools: Massy+2 |
| Higher education institutions and programsTie | 0 | 0 | Tie |
Sources: Ministry of Education, INSEE, facilities database (BPE)
Recorded crime
Offenses recorded by the police
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Home burglaries per 1,000 homesHigher rate: Massy+29% | 3.3 | 4.3 | Higher rate: Massy+29% |
| Non-violent thefts per 1,000 inhab.Higher rate: Massy3.1 times as high | 5.3 | 16.3 | Higher rate: Massy3.1 times as high |
| Physical violence outside the family per 1,000 inhab.Higher rate: Massy2.4 times as high | 1.4 | 3.3 | Higher rate: Massy2.4 times as high |
| Vehicle thefts per 1,000 inhab.Higher rate: Massy+100% | 1.2 | 2.5 | Higher rate: Massy+100% |
| Vandalism and property damage per 1,000 inhab.Higher rate: Massy+11% | 8.6 | 9.5 | Higher rate: Massy+11% |
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 | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Average temperatureWarmer: Le Plessis-Robinson+1.3 °C | 12.8°C | 11.5°C | Warmer: Le Plessis-Robinson+1.3 °C |
| Sunshine h/yearSunnier: Massy+7% | 1,717 | 1,831 | Sunnier: Massy+7% |
| Rainfall mm/yearWetter: Massy+9% | 634 | 694 | Wetter: Massy+9% |
| Rainy days days/year at least 1 mmMore rainy days: Massy+8 days/year | 109 | 117 | More rainy days: Massy+8 days/year |
| Frost days days/yearMore frost days: Massy+34 days/year | 21 | 55 | More frost days: Massy+34 days/year |
| Very hot days days/year 30 °C or moreTie | 14 | 14 | Tie |
Climate normals from the reference Météo-France station of each commune. Source: Météo-France, climate normals
Natural hazards
Natural disasters and prevention
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Natural disasters declared since 1982More declarations: Massy+3 | 8 | 11 | More declarations: Massy+3 |
| Natural hazard prevention plansMore plans: Massy+1 | 0 | 1 | More plans: Massy+1 |
| Radon potentialSame | Low | Low | Same |
Sources: Géorisques (GASPAR), IRSN
Land
Area, terrain and administrative areas
| Criterion | Le Plessis-Robinson | Massy | Difference |
|---|---|---|---|
| Area km²Larger: Massy2.7 times as high | 3.43 | 9.43 | Larger: Massy2.7 times as high |
| Town hall elevationHigher: Le Plessis-Robinson+74 m | 141 m | 67 m | Higher: Le Plessis-Robinson+74 m |
| Coastal communeSame | No | No | Same |
| Density grid (INSEE)Same | Large urban centre | Large urban centre | Same |
| Department | Hauts-de-Seine (92) | Essonne (91) | |
| Intercommunality | Métropole du Grand Paris | Communauté d'agglomération Communauté Paris-Saclay | |
| 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
Le Plessis-Robinson vs Massy (91) at a glance
| Criterion | Le Plessis-Robinson | Massy |
|---|---|---|
| Population inhab. | 29,016 | 52,023 |
| Change over 10 years | +1.2% | +12.7% |
| Density per km² | 8,459 | 5,517 |
| Median apartment price €/m² | 5,972 | 4,375 |
| Median house price €/m² | 7,038 | 4,788 |
| Apartment rent €/m² | 23.8 | 20.1 |
| Property tax (combined rate) | 37.77% | 32.32% |
| Median standard of living €/year | 35,370 | 27,350 |
| Unemployment rate (census) | 6.8% | 10.4% |
| Premises with fiber | 95% | 97% |
| Access to general practitioners visits/inhab./year | 2.5 | 3.3 |
| Home burglaries per 1,000 homes | 3.3 | 4.3 |
| Average temperature | 12.8°C | 11.5°C |
| Sunshine h/year | 1,717 | 1,831 |
| Area km² | 3.43 | 9.43 |
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FAQ
Le Plessis-Robinson vs Massy (91): your questions
Which is the larger city, Le Plessis-Robinson or Massy?
By population, Massy: 52,023 inhabitants versus 29,016 for Le Plessis-Robinson (official population figures in force on January 1, 2026). Massy is the 128th largest city in France, Le Plessis-Robinson the 307th. By area, Massy is also the larger (9.4 km²).
How far is Le Plessis-Robinson from Massy?
Le Plessis-Robinson and Massy are 6.2 km apart as the crow flies, between the centers of the two communes.
Where is real estate more expensive, in Le Plessis-Robinson or Massy?
To buy an apartment, Le Plessis-Robinson is more expensive: €5,972 per m² (median price), versus €4,375 in Massy (+37%). Median prices of sales over the last five years (DGFiP, DVF).
Where is the standard of living higher, in Le Plessis-Robinson or Massy?
In Le Plessis-Robinson, half of the residents have a standard of living above €35,370 a year, versus €27,350 in Massy (disposable income per consumption unit, INSEE).
Which city is sunnier, Le Plessis-Robinson or Massy?
Massy: 1,831 hours of sunshine a year on average, versus 1,717 in Le Plessis-Robinson (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