Question 1

What is the population of Boulogne-sur-Mer?

Accepted Answer

The commune of Boulogne-sur-Mer has 41,039 inhabitants per the INSEE census.

Question 2

Are there natural risks in Boulogne-sur-Mer?

Accepted Answer

Yes, Boulogne-sur-Mer is exposed to 5 natural risk(s): Inondation, Mouvement de terrain, Par submersion marine, Séisme, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Boulogne-sur-Mer?

Accepted Answer

Out of 2,230 ADEME EPCs available in Boulogne-sur-Mer, the most common label is D. 2% are rated A or B.

Question 4

What is the crime rate in Boulogne-sur-Mer?

Accepted Answer

In 2025, the crime rate in Boulogne-sur-Mer was 67.5 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-sur-Mer?

Accepted Answer

Tap water in Boulogne-sur-Mer is compliant with quality standards. Source: ARS / Hub'eau. (1003 analyses over 12 months)

Question 6

What is the air quality in Boulogne-sur-Mer?

Accepted Answer

According to LCSQA stations (5-year mean) in Boulogne-sur-Mer: PM2.5 : 10.4 µg/m³, NO₂ : 13.4 µg/m³, PM10 : 18.8 µg/m³. Source: LCSQA / Géod'air.