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Fire of the warehouse in Gagny D20120311aPhoto: Tangopaso · Public domain
CSafety Grade
Safety in Gagny · SSMSI, 2023–2025

Gagny stands out for drug dealing: 10.7 times the rate of a typical town its size

The rate the grade counts held about level from 2023 to 2025. It places 76th of the 205 compared French towns nearest in size, the least crime first. Overall, it grades C for safety (#9 of 39 in Seine-Saint-Denis). Typical years here bring 9.4 violent crimes plus 17.7 incidents of burglary, vehicle theft and damage per 1,000 residents.

Violence
9.4
recorded per 1,000 residents a year · in the grade
Burglary, vehicle theft, damage
17.7
burglaries, vehicle thefts, thefts from vehicles, criminal damage · in the grade
Theft and fraud
10.7
theft without violence, fraud, per 1,000 residents a year · Not in the grade
Drug use
6.4
recorded offenses per 1,000 residents a year · Not in the grade

Offenses recorded per 1,000 residents a year, 2023–2025 average (INSEE population of each year). Violence, and burglaries, vehicle thefts, thefts from vehicles and criminal damage, count equally.

What stands out · In brief

What stands out about safety in Gagny

Among towns its size

Among the 205 French towns of 29,600 to 57,100 people with a Safety Grade, Gagny is 76th from the lowest recorded rate per resident. Towns its size ↓

Written from the SSMSI and INSEE data on this page. Figures are offenses police and gendarmerie recorded, not convictions.

Safety Grade

What sits behind Gagny’s C

Violence: physical, sexual, armed robbery (9.4 per 1,000 residents a year, 2023–2025 average)Lower rate than in 30% of compared French towns
Burglary, vehicle theft and damage (17.7 per 1,000 residents a year, 2023–2025 average)Lower rate than in 27% of compared French towns
CC

A firm grade. Built on 3,433 offenses recorded in the graded categories over three years; with a town of 42,313, a few cases more or fewer would not change the grade: C.

Hidden counts: for armed robbery, 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, 0.3% of the index here. What isn’t published ↓

Per resident, against the 4,295 compared French towns with a Safety Grade.

By type

What police and gendarmerie recorded most in 2025

Drug use8
Criminal damage6.8
Theft without violence5.6
Fraud5.4
Family violence5.2
Burglary3.9
Theft from vehicles3.7
Drug dealing2.9
Other physical violence2.9
Sexual violence2.1
Theft of vehicle parts2.1
Vehicle theft2
Robbery without a weapon0.9
ViolenceBurglary, vehicle theft, damageNot in the gradeMedian of towns its size

Well above the median of towns its size: drug dealing (2.9 per 1,000 against 0.3), robbery without a weapon (0.9 per 1,000 against 0.3) and drug use (8 per 1,000 against 4). Not published for 2025: armed robbery.

Theft without violence, robbery without a weapon, theft of vehicle parts, fraud and drug offenses 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.

Per 1,000 residents in 2025; the tick is the median of the graded French towns of 10,000 to 50,000.

For every 1,000 residents

Crime in Gagny per 1,000 residents

ViolenceBurglary, vehicle theft, damageTheft and fraud (not in the grade)
9
recorded violent incidents
18
burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage
11
thefts without violence and frauds
38
of the three together

Each dot is one resident’s share: offenses are counted, not victims, and one person can be the victim of several.

And 18 burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage, and 11 thefts without violence and frauds: a year, 2023–2025 average.

Towns its size

Gagny against towns its size

#TownPeopleViolenceHomes, vehiclesSafety
1Saint-Joseph Réunion39,2079.44.7A
…
61Neuilly-sur-Marne Seine-Saint-Denis39,80010.815.1C
…
73Thonon-les-Bains Haute-Savoie37,9289.517.5C
74Massy Essonne51,7298.918.1C
75Fontenay-sous-Bois Val-de-Marne53,7577.419.6C
76Gagny Seine-Saint-Denis42,3139.417.7C
77Istres Bouches-du-Rhône44,2929.717.5C
78Oullins-Pierre-Bénite Rhône38,1687.220C
79Malakoff Hauts-de-Seine30,557720.4C
…
93Romainville Seine-Saint-Denis37,152821.1C−
…
95Épinay-sur-Seine Seine-Saint-Denis52,83312.117.1C−
…
103Sevran Seine-Saint-Denis52,53511.318.5C−
…
205Lyon 2e Rhône29,9812085.9D−

Per 1,000 residents a year. Context only: the grade compares Gagny with every compared French town, not just towns its size.

Lowest rate in the graded categories first, 2023–2025 average, with the closest to Gagny and up to four from Seine-Saint-Denis.

Year by year

Year by year, the graded rate held steady from 2023 to 2025

Violence · per 1,000 residents

20238.7
20249.1
202510.3

Burglary, vehicle theft, damage · per 1,000 residents

202318.8
202418.1
202516.4
KindIn the grade202320242025
Family violenceViolence172196220
Other physical violenceViolence138134121
Sexual violenceViolence565490
Armed robberyViolencen.p.n.p.n.p.
BurglaryBurglary, vehicle theft, damage184150167
Vehicle theftBurglary, vehicle theft, damage11010583
Theft from vehiclesBurglary, vehicle theft, damage171189157
Criminal damageBurglary, vehicle theft, damage329320287
Theft without violenceNot in the grade221208239
Robbery without a weaponNot in the grade514236
Theft of vehicle partsNot in the grade779189
FraudNot in the grade228230229
Drug useNot in the grade232239338
Drug dealingNot in the grade85106122

Counts mix units, as SSMSI publishes them: victims for violence, offenses for burglary and damage, vehicles for vehicle theft. That’s why the page never adds them into one “total crimes”.

Offenses recorded each year. n.p.: not published (small: five or fewer in at least one of the last three years).

What isn’t published

1 kind of crime isn’t published for Gagny

Share of the index resting on Seine-Saint-Denis averages0.3% · limit 25%

Over 25%, no Safety Grade; over 10%, the grade says it is less certain.

SSMSI doesn’t publish a commune’s count when it’s small (five or fewer in at least one of the last three years), and publishes instead the average among the Seine-Saint-Denis communes whose count is hidden. That average stands in for Gagny’s hidden cells, never a zero; here it is 0.3% of the index, so the grade rests on Gagny’s own figures.

Hidden for GagnyYearsSeine-Saint-Denis average
Armed robbery2023–20253.2 · 3.1 · 2.8

The counts SSMSI keeps back for Gagny, and what the grade uses in their place.

Neighbors

Gagny and the towns around it

ABCDNot graded
TownPeopleViolenceHomes, vehiclesSafety
Gagny42,3139.417.7C
Neuilly-sur-Marne39,80010.815.1C
Montfermeil28,7039.816.4C
Le Raincy14,73510.125.4D
Clichy-sous-Bois29,35411.216.8C
Villemomble29,79510.223.1D
Gournay-sur-Marne7,3206.219.1C

3 of its 6 graded neighbors have a lower recorded rate in the graded categories than Gagny.

The nearest towns of 2,500 or more, per 1,000 residents a year, 2023–2025 average.

How to read these numbers

What this data can and can’t tell you

  • Where offenses happen, not where victims live. SSMSI counts each offense in the commune where police or gendarmerie recorded it happening. Towns with shops, stations, a hospital or nightlife record more per resident, and visitors are part of that count but not of the population it is divided by.
  • An index, not a total. The kinds are counted in different units (victims, offenses, vehicles), so the grade adds their rates per 1,000 residents into an index and never shows a “total crimes” or a chance of being a victim.
  • Hidden counts. SSMSI doesn’t publish a commune’s count when it’s small (five or fewer in at least one of the last three years). In its place it gives the average among the département’s communes whose count is hidden; the grade uses that average, never zero, and a town gets no Safety Grade when over a quarter of its index would come from such averages.
  • Recorded, not all crime. Only offenses reported to or found by police and gendarmerie are counted. Reporting rates differ by kind: most vehicle thefts are reported, much family and sexual violence isn’t.

How the Safety Grade works in France →

Questions about safety in Gagny

Is Gagny safe?

It has more crime per resident than 73% of compared French towns: an average of 9.4 recorded violent incidents and 17.7 recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025. It grades C for safety, #9 of 39 in Seine-Saint-Denis. Among the 205 French towns of 29,600 to 57,100 people, it is 76th from the lowest rate.

Is crime going up in Gagny?

The recorded rate in the graded categories held steady from 2023 to 2025: 27.5 per 1,000 residents in 2023, 26.7 in 2025. The grade uses the three-year average, so one unusual year moves it less.

What is the most common recorded offense in Gagny?

Drug use: 338 in 2025, shown for information, not in the grade. Then criminal damage (287), theft without violence (239) and fraud (229).

Sources: SSMSI (Interior Ministry), recorded crime by commune, 2023–2025 (base communale de la délinquance enregistrée, 2026 edition) · INSEE, legal populations for each year · INSEE, census 2023 (jobs and working residents) · IGN Admin Express (boundaries) · TownRatings grades: our own summary of the data, ranking French towns against each other only, updated November 9, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).

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.