Question 1

What is the population of Saint-Jean-lès-Longuyon?

Accepted Answer

The commune of Saint-Jean-lès-Longuyon has 409 inhabitants per the INSEE census.

Question 2

Are there natural risks in Saint-Jean-lès-Longuyon?

Accepted Answer

Yes, Saint-Jean-lès-Longuyon is exposed to 4 natural risk(s): Affaissements et effondrements d'origine anthropique (anciennes carrières souterraines, hors mines), Inondation, Mouvement de terrain, Par une crue à débordement lent de cours d'eau. Source: Géorisques / GASPAR.

Question 3

What is the energy performance of homes in Saint-Jean-lès-Longuyon?

Accepted Answer

Out of 22 ADEME EPCs available in Saint-Jean-lès-Longuyon, the most common label is E. 5% are rated A or B.

Question 4

What is the crime rate in Saint-Jean-lès-Longuyon?

Accepted Answer

In 2025, the crime rate in Saint-Jean-lès-Longuyon was 0 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-Jean-lès-Longuyon?

Accepted Answer

Tap water in Saint-Jean-lès-Longuyon is compliant with quality standards. Source: ARS / Hub'eau. (99 analyses over 12 months)

Question 6

What is the air quality in Saint-Jean-lès-Longuyon?

Accepted Answer

According to LCSQA stations (5-year mean) in Saint-Jean-lès-Longuyon: PM2.5 : 8.6 µg/m³, NO₂ : 12.9 µg/m³, PM10 : 14.7 µg/m³. Source: LCSQA / Géod'air.