Question 1

What is the population of Soisy-sous-Montmorency?

Accepted Answer

The commune of Soisy-sous-Montmorency has 18,068 inhabitants per the INSEE census.

Question 2

Are there natural risks in Soisy-sous-Montmorency?

Accepted Answer

Yes, Soisy-sous-Montmorency is exposed to 4 natural risk(s): Inondation, Mouvement de terrain, Tassements différentiels, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Soisy-sous-Montmorency?

Accepted Answer

Out of 673 ADEME EPCs available in Soisy-sous-Montmorency, the most common label is D. 2% are rated A or B.

Question 4

What is the crime rate in Soisy-sous-Montmorency?

Accepted Answer

In 2025, the crime rate in Soisy-sous-Montmorency was 32.6 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 Soisy-sous-Montmorency?

Accepted Answer

Tap water in Soisy-sous-Montmorency is compliant with quality standards. Source: ARS / Hub'eau. (197 analyses over 12 months)

Question 6

What is the air quality in Soisy-sous-Montmorency?

Accepted Answer

According to LCSQA stations (5-year mean) in Soisy-sous-Montmorency: PM2.5 : 10.7 µg/m³, NO₂ : 26.6 µg/m³, PM10 : 20.1 µg/m³. Source: LCSQA / Géod'air.