Question 1

How many communes does the Paris département have?

Accepted Answer

The Paris département (75) has 21 communes.

Question 2

What is the population of the Paris département?

Accepted Answer

The Paris département has approximately 4,227,410 inhabitants (estimated from INSEE data).

Question 3

What is the crime rate in the Paris département?

Accepted Answer

In 2025, the crime rate in the Paris département was 54 offences per 1,000 inhabitants (aggregated across all communes). Source: SSMSI.

Question 4

What is the air quality in the Paris département?

Accepted Answer

According to LCSQA stations (estimated at département centroid, 5-year mean): PM2.5 : 10.9 µg/m³, NO₂ : 28.0 µg/m³, PM10 : 20.2 µg/m³. Source: LCSQA / Géod'air.