Global Flood Maps

Our global flood maps provide flood extents and depths for multiple return periods across a range of flood sources.

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HIGH QUALITY FLOOD MAPS

Our global flood maps provide flood extents and depths for multiple return periods, covering river (fluvial), surface (pluvial) water and coastal flooding. This allows for a consistent and comprehensive view of flood hazard for every country in the world.

We constantly strive to improve our maps through new data, research and innovation. We go to great lengths to ensure we are using the highest quality elevation data, which is a key input to any flood map. We offer 30m flood maps for every country in the world and 5m flood maps for the UK, Ireland, USA, continental Europe and major populated regions in Australia, providing a more granular view of the risk in urban areas and areas prone to surface water flooding.

Our UK flood maps include mapping of six flood types: river, surface water, coastal, groundwater, dam break and canal failure, giving you a very comprehensive view of your risk.

Flood map showing varying inundation depths across Lismore, Australia, with rivers and roads overlaid on terrain.

Continuous improvement

By distinguishing between different types of flooding and using 2D hydraulic modelling, we are able to simulate complex flooding to create our flood maps. Our commitment to quality, innovation and a regular programme of updates means we are trusted implicitly to supply the best quality data to our clients.

We're committed to ensuring our clients can access our data in a way that suits them. Our global flood maps are platform agnostic and available:

  • In-house directly from JBA and via JBA online services (JBA Vision web viewer app, API and WMTS)
  • Via our wide range of service enabling partners in UK, Europe, North America, Asia and Australia. 
  • As part of a consultancy service to help identify exposure hotspots, run per-risk flood assessments and manage accumulations

Get in touch today to find out more about our leading global flood maps. You can also read our full executive briefing which provides an overview of our global flood maps.
 

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Spotlight – Mexico Flood Map

Our most recent update to the JBA Mexico Flood Map provides an enhanced, data-driven view of river and surface water hazard across the country as well as new coastal flood data.

Covering areas inhabited by approximately 67% of Mexico’s population, the update incorporates newly available bare‑earth Digital Terrain Model (DTM) data, refreshed hydrology in line with JBA’s latest global methodology, updated land‑use information, and improved classification of river and surface water flood types. 

Key urban areas included are Mexico City, León, Puebla, Guadalajara and Aguascalientes. The update also features new defended areas to reflect the most current flood protection infrastructure.  These improvements provide insurers, lenders and other stakeholders with a more informed view of flood hazard, supporting better risk evaluation and decision‑making across Mexico.

Mexico Flood Map image March 26

Recent Flood Map Updates

  • South Africa Flood Map

    South Africa has experienced a series of destructive floods in recent years highlighting the need for high-resolution, up-to-date flood maps for improved risk management, planning, and resilience.

  • South Korea Flood Map

    Better differentiation flooding between river and surface water along with new land use and terrain data has transformed the clarity and detail in this update

  • Canada Flood Map

    The latest biennial Canada flood map includes new digital terrain data, enhanced land use intelligence and expanded mapping of defended areas with a focus on key urban areas.

  • Chile Flood Map

    Now features updated DTM, land use, and flood extent data, focusing on regions where 97% of the population lives – including Santiago, Puente Alto, Temuco, and Antofagasta.

  • Colombia Flood Map

    Offers greater precision through new terrain data, improved floodplain detail, and updates to land use and defence mapping. Urban focus includes Bogotá, Medellín, Barranquilla, and Cali.

JBA Vision

An easy-to-use web application to view our comprehensive global flood maps.

Read more

Flood risk analysis software displayed on a computer screen, showing flood depths on a map of eastern Australia.
  • Abstract digital chart with glowing blue and pink bars and lines, representing financial data, analytics, or market trends.

    Data

    The largest and most comprehensive data suite available for understanding current and future flood risk anywhere in the world.

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  • Abstract financial background with silhouettes, global map, and fluctuating graphs, symbolising data-driven or parametric analysis.

    Parametric

    Globally consistent high-resolution flood data to profile risk, enable anticipatory action, and identify triggers and monitor thresholds for parametric insurance.

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  • City skyline under cloudy sky with blue digital network overlay, symbolising data-driven urban analysis or flood risk assessment.

    Flood Risk Assessment

    Tailored flood risk insight for a specified location at property or postcode level, utilising JBA’s market-leading, high resolution flood maps and analytics.

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  • Silhouettes of people in a meeting room seen through glass, with a warm orange overlay and reflections of an urban cityscape.

    Consultancy

    Bespoke solutions and consultancy including tailored model builds, single site assessments, flood defence design and portfolio optimisation.

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