Question 1

What is the population of Saint-Herblain?

Accepted Answer

The commune of Saint-Herblain has 50,561 inhabitants per the INSEE census.

Question 2

Are there natural risks in Saint-Herblain?

Accepted Answer

Yes, Saint-Herblain is exposed to 13 natural risk(s): Foudre, Grêle, Inondation, Neige et pluies verglaçantes, Par ruissellement et coulée de boue, Par une crue à débordement lent de cours d'eau, Phénomène lié à l'atmosphère, Radon, Risque industriel, Rupture de barrage, Séisme, Tempête et grains (vent), Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Saint-Herblain?

Accepted Answer

Out of 2,433 ADEME EPCs available in Saint-Herblain, the most common label is D. 4% are rated A or B.

Question 4

What is the crime rate in Saint-Herblain?

Accepted Answer

In 2025, the crime rate in Saint-Herblain was 39.2 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-Herblain?

Accepted Answer

Tap water in Saint-Herblain is compliant with quality standards. Source: ARS / Hub'eau. (1569 analyses over 12 months)

Question 6

What is the air quality in Saint-Herblain?

Accepted Answer

According to LCSQA stations (5-year mean) in Saint-Herblain: PM2.5 : 9.0 µg/m³, NO₂ : 14.5 µg/m³, PM10 : 15.9 µg/m³. Source: LCSQA / Géod'air.