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Seine et Oise, St Nom la Bretèche, Cerisiers sauvages, champ de blé et, dans le fond, le villagePhoto: Passet Stéphane · CC0
B+Safety Grade
Safety in Saint-Nom-la-Bretèche · SSMSI, 2023–2025

Saint-Nom-la-Bretèche records vehicle theft at 2.8 times the rate of a typical town its size

Across all the graded crimes, Saint-Nom-la-Bretèche lands on B+ (#21 of 91 in Yvelines): less crime per resident than 72% of compared French towns, on offenses police and gendarmerie recorded from 2023 to 2025. Per resident, the graded crimes were up 7% from 2023 to 2025. Of all the kinds of crime, vehicle theft is where Saint-Nom-la-Bretèche departs most from towns its size: 2 per 1,000 against 0.7.

Violence
2.4
recorded per 1,000 residents a year · in the grade
Burglary, vehicle theft, damage
14.6
burglaries, vehicle thefts, thefts from vehicles, criminal damage · in the grade
Theft and fraud
9.7
theft without violence, fraud, per 1,000 residents a year · Not in the grade
Drug use
1.8
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 Saint-Nom-la-Bretèche

Ranks better on violence than on burglary, vehicle theft and damage

Saint-Nom-la-Bretèche recorded an average of 2.4 violent incidents per 1,000 residents a year, 2023–2025, fewer than in 96% of compared French towns, and 14.6 burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage, fewer than in 46%. Safety Grade ↓

Among towns its size

Among the 1,522 French towns of 3,500 to 6,700 people with a Safety Grade, Saint-Nom-la-Bretèche is 630th 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

Saint-Nom-la-Bretèche: B+ for safety, and why

Violence: physical, sexual, armed robbery (2.4 per 1,000 residents a year, 2023–2025 average)Lower rate than in 96% of compared French towns
Burglary, vehicle theft and damage (14.6 per 1,000 residents a year, 2023–2025 average)Lower rate than in 46% of compared French towns
BA

A fairly firm grade. Built on 231 offenses recorded in the graded categories over three years; with a town of 4,965, a few cases more or fewer would move it between B and A.

Hidden counts: for family violence, other physical violence, sexual violence, armed robbery and theft from vehicles, 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, 8.8% 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

Fraud6.8
Criminal damage6.6
Burglary5.6
Theft without violence2.8
Family violence2.2
Vehicle theft2
Theft from vehicles1.8
Theft of vehicle parts1.8
Drug use1.8
ViolenceBurglary, vehicle theft, damageNot in the gradeMedian of towns its size

Well above the median of towns its size: vehicle theft (2 per 1,000 against 0.7) and burglary (5.6 per 1,000 against 2.8). None recorded in 2025: drug dealing. Not published for 2025: other physical violence, sexual violence, armed robbery and robbery without a weapon.

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 2,500 to 10,000.

What isn’t published

5 kinds of crime aren’t published for Saint-Nom-la-Bretèche

Share of the index resting on Yvelines averages8.8% · 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 Yvelines communes whose count is hidden. That average stands in for Saint-Nom-la-Bretèche’s hidden cells, never a zero; here it is 8.8% of the index, so the grade rests on Saint-Nom-la-Bretèche’s own figures.

Hidden for Saint-Nom-la-BretècheYearsYvelines average
Family violence20232.4
Other physical violence2023–20251.9 · 1.6 · 2.1
Sexual violence2023–20252.4 · 2.3 · 1.9
Armed robbery2023–20251 · 1.3 · 1.1
Theft from vehicles2023, 20242.2 · 2.2

The counts SSMSI keeps back for Saint-Nom-la-Bretèche, and what the grade uses in their place.

Year by year

Saint-Nom-la-Bretèche, year by year

Violence · per 1,000 residents

20231.5
20242.5
20253.2

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

202316.6
202411.1
202516.1
KindIn the grade202320242025
Family violenceViolencen.p.711
Other physical violenceViolencen.p.n.p.n.p.
Sexual violenceViolencen.p.n.p.n.p.
Armed robberyViolencen.p.n.p.n.p.
BurglaryBurglary, vehicle theft, damage372428
Vehicle theftBurglary, vehicle theft, damage15810
Theft from vehiclesBurglary, vehicle theft, damagen.p.n.p.9
Criminal damageBurglary, vehicle theft, damage282133
Theft without violenceNot in the grade101314
Robbery without a weaponNot in the graden.p.n.p.n.p.
Theft of vehicle partsNot in the graden.p.139
FraudNot in the grade383534
Drug useNot in the graden.p.n.p.9
Drug dealingNot in the graden.p.00

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).

For every 1,000 residents

About 2 in 1,000: recorded violent incidents a year

ViolenceBurglary, vehicle theft, damageTheft and fraud (not in the grade)
2
recorded violent incidents
15
burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage
10
thefts without violence and frauds
27
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 15 burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage, and 10 thefts without violence and frauds: a year, 2023–2025 average.

Towns its size

Of 1,522 towns its size, Saint-Nom-la-Bretèche is 630th from the least graded crime

#TownPeopleViolenceHomes, vehiclesSafety
1Mouguerre Pyrénées-Atlantiques5,4280.85.5A+
…
186Issou Yvelines4,0605.46.7A
…
219Le Perray-en-Yvelines Yvelines6,4802.79.8A
220Chevreuse Yvelines5,50239.5A
221Jouars-Pontchartrain Yvelines6,03939.5A
…
627Saint-Symphorien-sur-Coise Rhône3,7857.69.4B+
628Les Martres-de-Veyre Puy-de-Dôme3,8262.614.4B+
629Rabastens Tarn5,8676.710.3B+
630Saint-Nom-la-Bretèche Yvelines4,9652.414.6B+
631Espaly-Saint-Marcel Haute-Loire3,5859.27.8B+
632Sainte-Livrade-sur-Lot Lot-et-Garonne6,5416.210.8B+
633Tourves Var5,207512.1B+
…
1522Saint-Tropez Var3,58224.853.3D−

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

Lowest rate in the graded categories first, 2023–2025 average, with the closest to Saint-Nom-la-Bretèche and up to four from Yvelines.

Neighbors

Saint-Nom-la-Bretèche and the towns around it

ABCDNot graded
TownPeopleViolenceHomes, vehiclesSafety
Saint-Nom-la-Bretèche4,9652.414.6B+
Feucherolles3,0432.511.7A
Noisy-le-Roi7,7134.715.1B
L'Étang-la-Ville5,1572.820.3C+
Villepreux11,9315.510.3A−
Les Clayes-sous-Bois16,8047.212.4B
Mareil-Marly4,1413.815.6B

2 of its 6 graded neighbors have a lower recorded rate in the graded categories than Saint-Nom-la-Bretèche.

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 Saint-Nom-la-Bretèche

Is Saint-Nom-la-Bretèche safe?

It has less crime per resident than 72% of compared French towns: an average of 2.4 recorded violent incidents and 14.6 recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025. It grades B+ for safety, #21 of 91 in Yvelines. Among the 1,522 French towns of 3,500 to 6,700 people, it is 630th from the lowest rate.

Is crime going up in Saint-Nom-la-Bretèche?

The recorded rate in the graded categories rose 7% from 2023 to 2025: 18.1 per 1,000 residents in 2023, 19.4 in 2025. In a town this size a few dozen cases move the figure, so the grade uses the three-year average.

What is the most common recorded offense in Saint-Nom-la-Bretèche?

Fraud: 34 in 2025, shown for information, not in the grade. Then criminal damage (33), burglary (28) and theft without violence (14).

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.