Question 1

What is the population of Montaigu?

Accepted Answer

The commune of Montaigu has 20,754 inhabitants per the INSEE census.

Question 2

Are there natural risks in Montaigu?

Accepted Answer

Yes, Montaigu is exposed to 10 natural risk(s): Inondation, Mouvement de terrain, Neige et pluies verglaçantes, Par une crue à débordement lent de cours d'eau, Phénomène lié à l'atmosphère, Radon, Rupture de barrage, Séisme, Tassements différentiels, Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Montaigu?

Accepted Answer

Out of 1,788 ADEME EPCs available in Montaigu, the most common label is D. 8% are rated A or B.

Question 4

What is the crime rate in Montaigu?

Accepted Answer

In 2025, the crime rate in Montaigu was 20.8 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 Montaigu?

Accepted Answer

Tap water in Montaigu is compliant with quality standards. Source: ARS / Hub'eau. (618 analyses over 12 months)

Question 6

What is the air quality in Montaigu?

Accepted Answer

According to LCSQA stations (5-year mean) in Montaigu: PM2.5 : 8.9 µg/m³, NO₂ : 13.5 µg/m³, PM10 : 15.5 µg/m³. Source: LCSQA / Géod'air.