Question 1

What is the population of Onet-le-Château?

Accepted Answer

The commune of Onet-le-Château has 12,062 inhabitants per the INSEE census.

Question 2

Are there natural risks in Onet-le-Château?

Accepted Answer

Yes, Onet-le-Château is exposed to 11 natural risk(s): Affaissement minier, Affaissements et effondrements d'origine naturelle (cavités souterraines), Eboulement ou chutes de pierres et de blocs, Effet de surpression, Effet toxique, Effondrements généralisés, Mouvement de terrain, Risque industriel, Séisme, Tassements différentiels, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Onet-le-Château?

Accepted Answer

Out of 540 ADEME EPCs available in Onet-le-Château, the most common label is D. 6% are rated A or B.

Question 4

What is the crime rate in Onet-le-Château?

Accepted Answer

In 2025, the crime rate in Onet-le-Château was 23.8 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 Onet-le-Château?

Accepted Answer

Tap water in Onet-le-Château is compliant with quality standards. Source: ARS / Hub'eau. (85 analyses over 12 months)

Question 6

What is the air quality in Onet-le-Château?

Accepted Answer

According to LCSQA stations (5-year mean) in Onet-le-Château: PM2.5 : 7.0 µg/m³, NO₂ : 10.4 µg/m³, PM10 : 11.5 µg/m³. Source: LCSQA / Géod'air.