Question 1

What is the population of Massy?

Accepted Answer

The commune of Massy has 50,597 inhabitants per the INSEE census.

Question 2

Are there natural risks in Massy?

Accepted Answer

Yes, Massy is exposed to 2 natural risk(s): Inondation, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Massy?

Accepted Answer

Out of 595 ADEME EPCs available in Massy, the most common label is D. 5% are rated A or B.

Question 4

What is the crime rate in Massy?

Accepted Answer

In 2025, the crime rate in Massy was 37.1 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 Massy?

Accepted Answer

Tap water in Massy is compliant with quality standards. Source: ARS / Hub'eau. (786 analyses over 12 months)

Question 6

What is the air quality in Massy?

Accepted Answer

According to LCSQA stations (5-year mean) in Massy: PM2.5 : 11.7 µg/m³, NO₂ : 29.0 µg/m³, PM10 : 20.0 µg/m³. Source: LCSQA / Géod'air.