OpenFEMA Dataset: Hazard Mitigation Assistance Mitigated Properties - v3

Version: 3
Last Data Refresh: 05-22-2024
Entity Name HazardMitigationAssistanceMitigatedProperties
API Endpoint
Update Frequency R/P1D
Program URL
Category Hazard Mitigation
Keywords mitigation
Deprecation Date 2024-07-31
Deprecation Message A newer version of this OpenFEMA data set has been released. This older dataset version will be archived by July 31, 2024. The following page details the latest version of this data set:
Deprecation New URL


This dataset contains the properties that were mitigated by projects funded under the Hazard Mitigation Assistance (HMA) grant programs. FEMA administers three programs that provide funding for eligible mitigation planning and projects that reduces disaster losses and protect life and property from future disaster damages. The three programs are the Hazard Mitigation Grant Program (HMGP), Flood Mitigation Assistance (FMA) grant program, and Building Resilient Infrastructure and Communities (BRIC) grant program. This dataset also contains data from the HMA grant programs that were eliminated by the Disaster Recovery Reform Act of 2018 (Pre-Disaster Mitigation grant program (PDM)), the Biggert Water Flood Insurance Reform Act of 2012 (Repetitive Flood Claims (RFC) grant program, and Severe Repetitive Loss (SRL) grant program). For more information on the Hazard Mitigation Assistance grant programs, please visit: .

This dataset contains mitigated property information from FEMA’s mitigation grant systems and is subject to a small percentage of human error. The dataset contains properties by project identifier, city, zip code, county, state and region and does not contain any Personally Identifiable Information (PII). The dataset can be joined to the OpenFEMA Hazard Mitigation Assistance Funded Project dataset by the Project Identifier field. Not all projects in the Hazard Mitigation Assistance Funded Project dataset will have mitigated properties (e.g., Planning and Management Cost projects). The financial information is derived from FEMA’s mitigation grant systems, not FEMA's official financial systems. Due to differences in reporting periods, status of obligations and how business rules are applied, this financial information may differ slightly from official publication on public websites such as; this dataset is not intended to be used for any official federal financial reporting.

In some cases, data was not provided by the subrecipient, recipient and/or entered into FEMA’s mitigation grant systems. The information is likely available as part of the paper file which is considered the file of record.

If you have media inquiries about this dataset, please email the FEMA News Desk at or call (202) 646-3272. For inquiries about FEMA's data and Open Government program, please email the OpenFEMA team at

Full Data

Format Address Record Count Approximate File Size
csv Link to csv 71773 small (10MB - 50MB)
json Link to json 71773 medium (50MB - 500MB)
jsona Link to jsona 71773 medium (50MB - 500MB)
jsonl Link to jsonl 71773 medium (50MB - 500MB)

Data Fields

Name Title Type Description Is Searchable
projectIdentifier Project Identifier
Single-value identifier that uniquely identifies a project. Disaster-based projects use the convention of DR-disaster number-project number-suffix (e.g., DR-1761-0001-M) while non-disaster projects use the unique project number (e.g., FMA-PJ-10-WA-2017-006) yes
programArea Program Area
Hazard Mitigation Assistance grant program areas such as FMA - Flood Mitigation Assistance grant program, HMGP - Hazard Mitigation Grant Program, LPDM - Legislative Pre-disaster Mitigation grant program, PDM - Pre-disaster Mitigation grant program, RFC - Repetitive Flood Claims grant program, SRL - Severe Repetitive Loss grant program yes
programFy Program FY
The fiscal year the disaster declaration date for disaster programs; the fiscal year from the Project Identifier for non-disaster programs (e.g., 2005 from PDMC-PJ-04-AL-2005-001) yes
disasterNumber Disaster Number
Sequentially assigned number used to designate an event or incident declared as a disaster. Note, some older non-disaster projects will report a disaster number due to the system of record used at the time. For more information on the disaster process, please visit yes
propertyAction Property Action
Indicates the mitigation measures performed at the property such as Acquisition, Elevation, Floodproofed, Relocation, Safe Room/Wind Shelter, Seismic Retrofit, Wildfire Retrofit, Wind Retrofit, and Other yes
structureType Structure Type
Type of structure such as 2-4 Family, Manufactured Home, Multi-Family Dwelling - 5 or More Units, Non-residential - Private, Non-residential - Public, Single Family, Vacant Land, and Other yes
typeOfResidency Type of Residency
Primary function of residence such as Primary, Rental, Secondary, etc. yes
foundationType Foundation Type
Type of foundation for the property such as Crawl Space, Slab on Grade, etc. yes
county County
Full name of the county (e.g., Broward) where the property is located yes
city City
City where the property is located yes
state State
Full name of the U.S. states, districts, and territories (e.g., Virginia) associated with the project yes
stateNumberCode State Number Code
FIPS code corresponding to the U.S. states, districts, and territories (e.g., 51 represents Virginia/VA) associated with the project yes
region Region
Number (1-10) used to represent the Region associated with the project yes
zip Zip
Zip code where the property is located yes
damageCategory Damage Category
Amount of damage, expressed as a percentage, to a structure relative to the market value of the structure before the damage occurred. Note, N/A may mean that the information was not collected or that it does not apply to the project type or funding program yes
actualAmountPaid Actual Amount Paid
Amount paid to property owner (excluding management/administrative costs). Note, the Actual Amount Paid field may not reflect the amount actually paid by FEMA to mitigate the structure. Often the negotiated price, based on fair market value, will be offset by duplication of benefits prior to settlement. In addition, the actual amount paid may not include ancillary costs such as appraisals, closing cost or legal fees, asbestos assessment and abatement and/or demolition costs yes
numberOfProperties Number of Properties
Number of properties meeting this criteria yes
id ID
Unique ID assigned to the record yes

See Also

Access the metadata API calls for additional information:

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