The Landes département (40) is a French département, located in the Nouvelle-Aquitaine region. It comprises 327 communes over 9,351 km², with approximately 428,427 inhabitants (INSEE). Cadastral map, parcels and open data on La Grande Carte.

Frequently asked questions
How many communes does the Landes département have?
The Landes département (40) has 327 communes.
What is the population of the Landes département?
The Landes département has approximately 428,427 inhabitants (estimated from INSEE data).
What is the crime rate in the Landes département?
In 2025, the crime rate in the Landes département was 20.4 offences per 1,000 inhabitants (aggregated across all communes). Source: SSMSI.
What is the air quality in the Landes département?
According to LCSQA stations (estimated at département centroid, 5-year mean): PM2.5 : 9.5 µg/m³, NO₂ : 8.9 µg/m³, PM10 : 14.7 µg/m³. Source: LCSQA / Géod'air.