Question 1

What is the population of Gagny?

Accepted Answer

The commune of Gagny has 40,790 inhabitants per the INSEE census.

Question 2

Are there natural risks in Gagny?

Accepted Answer

Yes, Gagny is exposed to 9 natural risk(s): Affaissements et effondrements d'origine anthropique (anciennes carrières souterraines, hors mines), Inondation, Mouvement de terrain, Par ruissellement et coulée de boue, Par une crue à débordement lent de cours d'eau, Phénomène lié à l'atmosphère, Tassements différentiels, Tempête et grains (vent), Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Gagny?

Accepted Answer

Out of 1,631 ADEME EPCs available in Gagny, the most common label is D. 2% are rated A or B.

Question 4

What is the crime rate in Gagny?

Accepted Answer

In 2025, the crime rate in Gagny 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 Gagny?

Accepted Answer

Tap water in Gagny is compliant with quality standards. Source: ARS / Hub'eau. (589 analyses over 12 months)

Question 6

What is the air quality in Gagny?

Accepted Answer

According to LCSQA stations (5-year mean) in Gagny: PM2.5 : 10.6 µg/m³, NO₂ : 22.5 µg/m³, PM10 : 17.4 µg/m³. Source: LCSQA / Géod'air.