Question 1

What is the population of Onnaing?

Accepted Answer

The commune of Onnaing has 8,567 inhabitants per the INSEE census.

Question 2

Are there natural risks in Onnaing?

Accepted Answer

Yes, Onnaing is exposed to 7 natural risk(s): Affaissement minier, Effondrements généralisés, Engins de guerre, Inondation, Mouvement de terrain, Séisme, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Onnaing?

Accepted Answer

Out of 2,249 ADEME EPCs available in Onnaing, the most common label is C. 1% are rated A or B.

Question 4

What is the crime rate in Onnaing?

Accepted Answer

In 2025, the crime rate in Onnaing was 43.6 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 Onnaing?

Accepted Answer

Tap water in Onnaing is compliant with quality standards. Source: ARS / Hub'eau. (267 analyses over 12 months)

Question 6

What is the air quality in Onnaing?

Accepted Answer

According to LCSQA stations (5-year mean) in Onnaing: PM2.5 : 10.4 µg/m³, NO₂ : 19.0 µg/m³, PM10 : 17.3 µg/m³. Source: LCSQA / Géod'air.