How Are Flood Zones Determined?


Quick Answer

The Federal Emergency Management Agency (FEMA) identifies flood zones by assessing the risks present in certain areas, including storm tides, river flow and rainfall, among other statistics, according to the FEMA website. FEMA then partners with communities to lower their risks for flooding.

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Full Answer

FEMA utilizes its Risk Mapping, Assessment and Planning flood hazard mapping program to create community flood maps and identify flood zone designations, states the FEMA website. Residents can obtain flood map information and the Flood Insurance Rate Map through the FEMA website, and residents who believe that they are wrongly classified in a Special Flood Hazard Area can complete a Letter of Map Change to request a flood zone change.

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