Largest City in France

2026 comparison

Gagny vs Montfermeil: 2026 comparison

Gagny has more inhabitants than Montfermeil: 42,524 versus 28,825, or 48% more. Gagny is both larger (6.8 km² versus 5.5 km²) and more densely populated (6,226 inhabitants per km² versus 5,289).

The median apartment price is higher in Gagny: €3,468 per m² versus €3,405. The median standard of living is higher in Gagny (€25,630 a year versus €22,800).

The two cities are 2.4 km apart as the crow flies, in the same department and the same urban unit (Paris).

GagnyMontfermeil
GagnyMontfermeil2.4 km as the crow flies

Gagny

City in Seine-Saint-Denis

Seine-Saint-Denis93Île-de-France

Population
42,524 inhab.
185th in France · 19th in its department
Area
6.8 km²
Density
6,226 per km²
Full profile of Gagny

© Chabe01, CC BY-SA 4.0

Montfermeil

City in Seine-Saint-Denis

Seine-Saint-Denis93Île-de-France

Population
28,825 inhab.
310th in France · 27th in its department
Area
5.5 km²
Density
5,289 per km²
Full profile of Montfermeil

Population

Population and demographics

Municipal population since 1876

GagnyMontfermeil

Population: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Population inhab.More populous: Gagny+48%42,52428,825More populous: Gagny+48%
Change over 5 yearsStronger growth: Gagny+1.3 pt+6.8%+5.5%Stronger growth: Gagny+1.3 pt
Change over 10 yearsStronger growth: Montfermeil+2.9 pts+7.7%+10.6%Stronger growth: Montfermeil+2.9 pts
Density per km²Denser: Gagny+18%6,2265,289Denser: Gagny+18%
Under 15More young people: Montfermeil+1.0 pt21.3%22.2%More young people: Montfermeil+1.0 pt
65 and overMore seniors: Montfermeil+0.5 pt13.5%13.9%More seniors: Montfermeil+0.5 pt
People per householdLarger households: Montfermeil+0.312.542.85Larger households: Montfermeil+0.31

Sources: INSEE, official population figures, INSEE, censuses, INSEE, census

Housing

Real estate prices and housing

Housing: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Median apartment price €/m²More expensive: Gagny+2%3,4683,405More expensive: Gagny+2%
Median house price €/m²More expensive: Gagny+8%3,8963,596More expensive: Gagny+8%
Apartment rent €/m² per month, utilities includedMore expensive: Gagny+3%18.618.0More expensive: Gagny+3%
House rent €/m² per month, utilities includedMore expensive: Montfermeil+1%16.116.3More expensive: Montfermeil+1%
Homeowner householdsMore homeowners: Montfermeil+1.9 pt56.6%58.5%More homeowners: Montfermeil+1.9 pt
Share of housesMore houses: Montfermeil+12 pts43.9%56.3%More houses: Montfermeil+12 pts
Social housing (SRU law) share of primary residencesMore social housing: Montfermeil+2.1 pts22.8%24.9%More social housing: Montfermeil+2.1 pts
Second homesMore second homes: Gagny+0.6 pt1.1%0.4%More second homes: Gagny+0.6 pt
Vacant homesMore vacant homes: Gagny+1.1 pt4.7%3.6%More vacant homes: Gagny+1.1 pt
Property tax (combined rate)Higher rate: Montfermeil+0.7 pt37.37%38.10%Higher rate: Montfermeil+0.7 pt

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

Income and jobs: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Median standard of living €/yearHigher: Gagny+12%25,63022,800Higher: Gagny+12%
Poverty rateHigher: Montfermeil+7.5 pts18.8%26.3%Higher: Montfermeil+7.5 pts
Average taxable income per householdHigher: Gagny+18%€31,296€26,551Higher: Gagny+18%
Households paying income taxMore taxpaying households: Gagny+9.4 pts49%40%More taxpaying households: Gagny+9.4 pts
Activity rate (ages 15-64)Higher: Gagny+5.2 pts75.4%70.2%Higher: Gagny+5.2 pts
Unemployment rate (census)Higher: Montfermeil+2.9 pts11.7%14.6%Higher: Montfermeil+2.9 pts

Sources: INSEE, Filosofi, DGFiP, income tax, INSEE, census

Local life

Town hall and fiber internet

Local life: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
MayorRolin CranolyXavier Lemoine
Political label of the mayor’s list (2026 local elections)Samemiscellaneous rightmiscellaneous rightSame
Premises with fiberBetter covered: Montfermeil+0.9 pt97%98%Better covered: Montfermeil+0.9 pt

Sources: Ministry of the Interior, register of elected officials, Ministry of the Interior, Arcep

Shops and facilities

Shops, leisure and transportation

Shops and facilities: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Shops per 10,000 inhab.More shops per capita: Gagny+3%23.5100 in total22.966 in totalMore shops per capita: Gagny+3%
Food shops per 10,000 inhab.More per capita: Gagny+24%12.955 in total10.430 in totalMore per capita: Gagny+24%
Restaurants per 10,000 inhab.More per capita: Gagny+67%17.474 in total10.430 in totalMore per capita: Gagny+67%
Sports facilities per 10,000 inhab.More per capita: Gagny+15%9.239 in total8.023 in totalMore per capita: Gagny+15%
Cultural venues per 10,000 inhab.More per capita: Gagny+69%1.25 in total0.72 in totalMore per capita: Gagny+69%
Hotels per 10,000 inhab.Tie0.00 in total0.00 in totalTie
Passenger train stationsMore stations: Gagny+220More stations: Gagny+2

Number of facilities per 10,000 inhabitants (total count in small print). Source: INSEE, facilities database (BPE)

Health

Health care

Health: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Access to general practitioners visits/inhab./year localized potential accessibilityBetter access: Gagny+7%3.23.0Better access: Gagny+7%
General practitioners per 10,000 inhab.More per capita: Montfermeil+48%4.017 in total5.917 in totalMore per capita: Montfermeil+48%
Medical specialists per 10,000 inhab.More per capita: Montfermeil6.8 times as high1.98 in total12.837 in totalMore per capita: Montfermeil6.8 times as high
Dentists per 10,000 inhab.More per capita: Montfermeil+7%2.611 in total2.88 in totalMore per capita: Montfermeil+7%
Pharmacies per 10,000 inhab.More per capita: Gagny+13%2.410 in total2.16 in totalMore per capita: Gagny+13%
HospitalsMore facilities: Montfermeil+404More facilities: Montfermeil+4

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

Education: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Primary schoolsMore schools: Gagny+42016More schools: Gagny+4
Middle schoolsMore middle schools: Gagny+253More middle schools: Gagny+2
High schoolsMore high schools: Gagny+330More high schools: Gagny+3
Higher education institutions and programsTie00Tie

Sources: Ministry of Education, INSEE, facilities database (BPE)

Recorded crime

Offenses recorded by the police

Recorded crime: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Home burglaries per 1,000 homesHigher rate: Gagny+10%9.99.0Higher rate: Gagny+10%
Non-violent thefts per 1,000 inhab.Higher rate: Montfermeil+2%5.65.8Higher rate: Montfermeil+2%
Physical violence outside the family per 1,000 inhab.Higher rate: Montfermeil+47%2.94.2Higher rate: Montfermeil+47%
Vehicle thefts per 1,000 inhab.Higher rate: Montfermeil+30%2.02.5Higher rate: Montfermeil+30%
Vandalism and property damage per 1,000 inhab.Higher rate: Montfermeil+3%6.87.0Higher rate: Montfermeil+3%

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)

Natural hazards

Natural disasters and prevention

Natural hazards: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Natural disasters declared since 1982More declarations: Gagny+52015More declarations: Gagny+5
Natural hazard prevention plansMore plans: Gagny+121More plans: Gagny+1
Radon potentialSameLowLowSame

Sources: Géorisques (GASPAR), IRSN

Land

Area, terrain and administrative areas

Land: Gagny and Montfermeil compared
CriterionGagnyMontfermeilDifference
Area km²Larger: Gagny+25%6.835.45Larger: Gagny+25%
Town hall elevationHigher: Montfermeil+48 m65 m114 mHigher: Montfermeil+48 m
Coastal communeSameNoNoSame
Density grid (INSEE)SameLarge urban centreLarge urban centreSame
DepartmentSameSeine-Saint-Denis (93)Seine-Saint-Denis (93)Same
IntercommunalitySameMétropole du Grand ParisMétropole du Grand ParisSame
Urban unitSameParisParisSame
Functional areaSameParisParisSame

Sources: IGN, IGN, elevation, Ministry for the Ecological Transition, Loi Littoral, INSEE, density grid, INSEE, COG, INSEE, geographic classifications

Summary

Gagny vs Montfermeil at a glance

Summary table: Gagny and Montfermeil
CriterionGagnyMontfermeil
Population inhab.42,52428,825
Change over 10 years+7.7%+10.6%
Density per km²6,2265,289
Median apartment price €/m²3,4683,405
Median house price €/m²3,8963,596
Apartment rent €/m²18.618.0
Property tax (combined rate)37.37%38.10%
Median standard of living €/year25,63022,800
Unemployment rate (census)11.7%14.6%
Premises with fiber97%98%
Access to general practitioners visits/inhab./year3.23.0
Home burglaries per 1,000 homes9.99.0
Average temperature12.3°C12.3°C
Sunshine h/year1,6341,634
Area km²6.835.45

More comparisons

Compare with other towns

Compare two other towns

FAQ

Gagny vs Montfermeil: your questions

Which is the larger city, Gagny or Montfermeil?

By population, Gagny: 42,524 inhabitants versus 28,825 for Montfermeil (official population figures in force on January 1, 2026). Gagny is the 185th largest city in France, Montfermeil the 310th. By area, Gagny is also the larger (6.8 km²).

How far is Gagny from Montfermeil?

Gagny and Montfermeil are 2.4 km apart as the crow flies, between the centers of the two communes, in the same department (Seine-Saint-Denis).

Where is real estate more expensive, in Gagny or Montfermeil?

To buy an apartment, Gagny is more expensive: €3,468 per m² (median price), versus €3,405 in Montfermeil (+2%). Median prices of sales over the last five years (DGFiP, DVF).

Where is the standard of living higher, in Gagny or Montfermeil?

In Gagny, half of the residents have a standard of living above €25,630 a year, versus €22,800 in Montfermeil (disposable income per consumption unit, INSEE).

Are Gagny and Montfermeil in the same department?

Yes: both towns are in Seine-Saint-Denis (93), in the Île-de-France region.

Official population figures in force on January 1, 2026. Source: INSEE, official population figures

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