Question 1

What is the population of Longpont-sur-Orge?

Accepted Answer

The commune of Longpont-sur-Orge has 6,456 inhabitants per the INSEE census.

Question 2

Are there natural risks in Longpont-sur-Orge?

Accepted Answer

Yes, Longpont-sur-Orge 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 Longpont-sur-Orge?

Accepted Answer

Out of 434 ADEME EPCs available in Longpont-sur-Orge, the most common label is D. 3% are rated A or B.

Question 4

What is the crime rate in Longpont-sur-Orge?

Accepted Answer

In 2025, the crime rate in Longpont-sur-Orge 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 Longpont-sur-Orge?

Accepted Answer

Tap water in Longpont-sur-Orge is compliant with quality standards. Source: ARS / Hub'eau. (218 analyses over 12 months)

Question 6

What is the air quality in Longpont-sur-Orge?

Accepted Answer

According to LCSQA stations (5-year mean) in Longpont-sur-Orge: PM2.5 : 13.5 µg/m³, NO₂ : 42.3 µg/m³, PM10 : 18.8 µg/m³. Source: LCSQA / Géod'air.