Question 1

What is the population of Thiais?

Accepted Answer

The commune of Thiais has 32,006 inhabitants per the INSEE census.

Question 2

Are there natural risks in Thiais?

Accepted Answer

Yes, Thiais is exposed to 2 natural risk(s): Mouvement de terrain, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Thiais?

Accepted Answer

Out of 517 ADEME EPCs available in Thiais, the most common label is D. 3% are rated A or B.

Question 4

What is the crime rate in Thiais?

Accepted Answer

In 2025, the crime rate in Thiais was 36.1 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 Thiais?

Accepted Answer

Tap water in Thiais is compliant with quality standards. Source: ARS / Hub'eau. (647 analyses over 12 months)

Question 6

What is the air quality in Thiais?

Accepted Answer

According to LCSQA stations (5-year mean) in Thiais: PM2.5 : 10.0 µg/m³, NO₂ : 22.8 µg/m³, PM10 : 16.5 µg/m³. Source: LCSQA / Géod'air.