Question 1

What is the population of Saint-Arnoult-en-Yvelines?

Accepted Answer

The commune of Saint-Arnoult-en-Yvelines has 5,854 inhabitants per the INSEE census.

Question 2

Are there natural risks in Saint-Arnoult-en-Yvelines?

Accepted Answer

No natural risk is listed for Saint-Arnoult-en-Yvelines in the GASPAR / Géorisques database.

Question 3

What is the energy performance of homes in Saint-Arnoult-en-Yvelines?

Accepted Answer

Out of 447 ADEME EPCs available in Saint-Arnoult-en-Yvelines, the most common label is D. 4% are rated A or B.

Question 4

What is the crime rate in Saint-Arnoult-en-Yvelines?

Accepted Answer

In 2025, the crime rate in Saint-Arnoult-en-Yvelines was 37.8 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 Saint-Arnoult-en-Yvelines?

Accepted Answer

Tap water in Saint-Arnoult-en-Yvelines is compliant with quality standards. Source: ARS / Hub'eau. (208 analyses over 12 months)

Question 6

What is the air quality in Saint-Arnoult-en-Yvelines?

Accepted Answer

According to LCSQA stations (5-year mean) in Saint-Arnoult-en-Yvelines: PM2.5 : 9.1 µg/m³, NO₂ : 8.3 µg/m³, PM10 : 13.1 µg/m³. Source: LCSQA / Géod'air.