Question 1

What is the population of Boulogne-Billancourt?

Accepted Answer

The commune of Boulogne-Billancourt has 120,205 inhabitants per the INSEE census.

Question 2

Are there natural risks in Boulogne-Billancourt?

Accepted Answer

Yes, Boulogne-Billancourt is exposed to 4 natural risk(s): Inondation, Phénomène lié à l'atmosphère, Tempête et grains (vent), Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Boulogne-Billancourt?

Accepted Answer

Out of 520 ADEME EPCs available in Boulogne-Billancourt, the most common label is D. 5% are rated A or B.

Question 4

What is the crime rate in Boulogne-Billancourt?

Accepted Answer

In 2025, the crime rate in Boulogne-Billancourt was 30.9 offences per 1,000 inhabitants (burglaries, theft, violence, vandalism). Source: SSMSI / French Ministry of the Interior.

Question 5

Is the tap water safe to drink in Boulogne-Billancourt?

Accepted Answer

Tap water in Boulogne-Billancourt is compliant with quality standards. Source: ARS / Hub'eau. (2795 analyses over 12 months)

Question 6

What is the air quality in Boulogne-Billancourt?

Accepted Answer

According to LCSQA stations (5-year mean) in Boulogne-Billancourt: PM2.5 : 10.1 µg/m³, NO₂ : 22.8 µg/m³, PM10 : 19.3 µg/m³. Source: LCSQA / Géod'air.