Who it’s for

The same map, 8 different jobs

The 100-year flood layer is free and open for all 36 states and union territories. What changes between users is not the data — it’s the question being asked of it. Here is how different people use it, and what we can add when the free layer isn’t enough.

Not on this list?

The free layer is genuinely free — researchers, students, journalists and community groups are all using it without asking us first, which is the point. If you need a cut of the data in a particular format, or a return period we haven’t published, just ask.

Ask for data ↗