Question 1

What is the population of Mont-Saint-Aignan?

Accepted Answer

The commune of Mont-Saint-Aignan has 20,188 inhabitants per the INSEE census.

Question 2

Are there natural risks in Mont-Saint-Aignan?

Accepted Answer

Yes, Mont-Saint-Aignan is exposed to 4 natural risk(s): Affaissements et effondrements d'origine anthropique (anciennes carrières souterraines, hors mines), Mouvement de terrain, Risque industriel, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Mont-Saint-Aignan?

Accepted Answer

Out of 834 ADEME EPCs available in Mont-Saint-Aignan, the most common label is D. 2% are rated A or B.

Question 4

What is the crime rate in Mont-Saint-Aignan?

Accepted Answer

In 2025, the crime rate in Mont-Saint-Aignan was 29.3 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 Mont-Saint-Aignan?

Accepted Answer

Tap water in Mont-Saint-Aignan is compliant with quality standards. Source: ARS / Hub'eau. (312 analyses over 12 months)

Question 6

What is the air quality in Mont-Saint-Aignan?

Accepted Answer

According to LCSQA stations (5-year mean) in Mont-Saint-Aignan: PM2.5 : 10.3 µg/m³, NO₂ : 22.1 µg/m³, PM10 : 17.6 µg/m³. Source: LCSQA / Géod'air.