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Flood Management Program

Maps and tools

Learn about your home or business’ flood risks using maps from the City, federal agencies, and others.


Atlas is the City’s map-based information tool. You can use it to view:

  • Current and historic aerial photos of the city.
  • Street view photos.
  • Map layers.

You can also use it to check zoning information for a property, including if a property is located in an area at risk of flooding or “floodplain”.

Flood risk maps and tools

Federal Emergency Management Agency (FEMA)

FEMA is the official public source for flood hazard information and manages National Flood Insurance Program. Use these resources to find your official flood map, determine if your development project is in the floodplain, and learn about your flood risk.

Environmental Protection Agency (EPA)

Use the EPA’s Environmental Justice Screening and Mapping Tool to view a variety of climate change data, including flood risk, the 100-year floodplain, and sea level rise.

Flood Factor

Flood Factor is a free online mapping tool created by the First Street Foundation. Use this tool to learn if a property has flooded in the past, its current risk, and how that risk has changed over time. It can also help estimate flood damage costs and risks to infrastructure and communities.

Story maps

The Delaware Valley Regional Planning Commission (DVRPC) created an interactive story map showing current and future flooding impacts for communities in Philadelphia and the surrounding counties.