Where can I find flood maps?

FEMA is the official public source for flood maps for insurance purposes:

• FEMA’s Flood Map Service Center
• FEMA’s National Flood Hazard Layer

NOAA is responsible for producing flood forecast maps that combine precipitation data with USGS streamflow data:

• NWS - National Water Prediction Service: River forecasts and long range flood outlook
• Coastal Inundation Dashboard: Real-time and historical coastal flooding information

USGS flood map products include:

• USGS Flood Information: Maps and resources for current and historical floods.
• Flood Inundation Mapper: Shows where river flooding might occur over a range of water levels. Only available for a few areas.
• Flood Event Viewer: Data collected during short-term flood events like hurricanes and multi-state storms. Includes rapid-deployment gages, temporary sensors, and high-water marks.
• Coastal Change Hazards Portal: Extreme storms, shoreline change, and sea-level rise.