Catchment area · INSEE
Find IRIS codes around your stores
Enter an address, choose a travel time or distance, and get the list of IRIS codes for your catchment area, media coverage or geomarketing studies.
Define your analysis zones
How far or how long from each store location?
Example: car 15 min, walk 10 min or 2 km — IGN API supports car and walk only (not bike).
Advanced options (routing, zone margin…)
Where is the store?
Enter the postal address — autocomplete will help you find it.
Import your store list
Up to 500 addresses — paste them or upload an Excel / CSV file.
Download the Excel template with store, address, time and distance columns.
One line per store: name, address, minutes, km (separator ; or tab).
No file selected
Your results
How It Works
- Choose your analysis zones: transport mode, duration or distance.
- Enter an address or import your store list.
- Get the IRIS codes, view the map and export in one click.
Frequently Asked Questions
What is the source for IRIS boundaries?
IRIS boundaries come from the INSEE geographic division (France-wide vintage). The intersection is calculated server-side by Flownect.
Which transport profiles are supported?
Car (car) and pedestrian (pedestrian) via the IGN Géoplateforme isochrone API. Bicycle is not supported by this API.
How do the map and GeoJSON export work?
The Map tab overlays all your stores (one color per point), their isochrones and IRIS polygons on OpenStreetMap. Filter by store or scenario to focus on one zone. The Download map (GeoJSON) button exports visible geometries for GIS tools.
Difference between detail and compact view?
The detail view lists one row per IRIS code. The compact view groups all IRIS codes from a scenario on a single row (separated by ;), like the iris_list_compact tab from the original script.