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Historical Disaster Data

This page contains an interactive tool to allow you to explore historic Federal disaster declarations by state, county, hazard, and year to better understand your historical flood risk and potential flood-related costs.

Data Caveats:

Data displayed in maps uses custom geocode and may render differently depending on mapping solutions. As noted on, FEMA defines a flood as “a general and temporary condition where two or more acres of normally dry land or two or more proper-ties are inundated by water or mudflow,” whereas the National Oceanic and Atmospheric Administration National Weather Service (NOAA NWS) defines a flood as, “any high flow, overflow, or inundation by water which causes or threatens damage.”

The IHP dataset includes grants awarded for housing repairs, housing replacement, and personal property damage. Items that were awarded funding also include those covered by insurance, but still deemed eligible for IHP assistance. Additional expenses included under the program, but not captured in the datasets used for this visualization include medical, funeral, moving and storage, transportation, rental assistance, and misc./other.

Data reported from the NFIP and FEMA IHP in the 'Costs of Flooding Section' should not be used to make direct comparisons about the total support offered to homeowners following a disaster or to draw conclusions about the benefits of the programs. These two programs have several fundamental differences in the assistance they provide as of 11/28/2016.

Individuals. IHP provides financial assistance and direct services to eligible individuals and households who have uninsured or underinsured necessary expenses and serious needs. IHP is not a substitute for insurance and cannot compensate for all losses caused by a disaster; it is intended to meet basic needs and supplement disaster recovery efforts.

For more information, please visit OpenFEMA's API terms and conditions.

Data Sources:

IHP Flood Damage as of 3/13/17

For accessibility, view the raw data. If you need help reading this page, please email us at