Question 1

What is the population of Osny?

Accepted Answer

The commune of Osny has 17,471 inhabitants per the INSEE census.

Question 2

Are there natural risks in Osny?

Accepted Answer

Yes, Osny 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 Osny?

Accepted Answer

Out of 767 ADEME EPCs available in Osny, the most common label is D. 7% are rated A or B.

Question 4

What is the crime rate in Osny?

Accepted Answer

In 2025, the crime rate in Osny was 33.8 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 Osny?

Accepted Answer

Tap water in Osny is compliant with quality standards. Source: ARS / Hub'eau. (4038 analyses over 12 months)

Question 6

What is the air quality in Osny?

Accepted Answer

According to LCSQA stations (5-year mean) in Osny: PM2.5 : 9.6 µg/m³, NO₂ : 23.0 µg/m³, PM10 : 15.3 µg/m³. Source: LCSQA / Géod'air.