Question 1

What is the population of Derval?

Accepted Answer

The commune of Derval has 3,578 inhabitants per the INSEE census.

Question 2

Are there natural risks in Derval?

Accepted Answer

Yes, Derval is exposed to 13 natural risk(s): Feu de forêt, Foudre, Grêle, Inondation, Neige et pluies verglaçantes, Par remontées de nappes naturelles, Par ruissellement et coulée de boue, Par une crue à débordement lent de cours d'eau, Phénomène lié à l'atmosphère, Radon, Séisme, Tempête et grains (vent), Transport de marchandises dangereuses. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Derval?

Accepted Answer

Out of 398 ADEME EPCs available in Derval, the most common label is D. 8% are rated A or B.

Question 4

What is the crime rate in Derval?

Accepted Answer

In 2025, the crime rate in Derval was 18.9 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 Derval?

Accepted Answer

Tap water in Derval is compliant with quality standards. Source: ARS / Hub'eau. (111 analyses over 12 months)

Question 6

What is the air quality in Derval?

Accepted Answer

According to LCSQA stations (5-year mean) in Derval: PM2.5 : 8.9 µg/m³, NO₂ : 13.9 µg/m³, PM10 : 14.7 µg/m³. Source: LCSQA / Géod'air.