FEMA Updates Flood Maps for Community Insurance Rules
Published Date: 5/22/2025
Notice
Summary
Some communities have new flood risk updates based on better science, changing flood zones and water levels on official maps. If you live or own property in these areas, your flood insurance rules and costs might change soon. These updates kick in with new policies and renewals, so keep an eye on your community’s flood map number to stay ahead!
Analyzed Economic Effects
3 provisions identified: 0 benefits, 0 costs, 3 mixed.
Flood-map updates may change insurance costs
Some communities have updated flood maps that change flood zones, water levels, or floodway lines. If you live in or own property in one of those listed communities, your flood insurance rules and costs might change when you buy a new policy or renew an existing one.
New policies and renewals use updated map number
FEMA revised maps through a Letter of Map Revision and the current effective community number shown must be used for all new flood insurance policies and for renewals. That means insurers and policyholders should reference the updated community number when buying or renewing coverage.
Maps changed: BFEs, zones, and floodways
The notice lists communities where Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or the regulatory floodway were added or modified on FEMA’s Flood Insurance Rate Maps and, where applicable, Flood Insurance Study reports. These technical changes were made because of new scientific or technical data and were issued via a Letter of Map Revision (LOMR).
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Key Dates
Department and Agencies
Related Federal Register Documents
2026-17073, Final Flood Hazard Determinations
Flood hazard determinations, which may include additions or modifications of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or regulatory floodways on the Flood Insurance Rate Maps (FIRMs) and where applicable, in the supporting Flood Insurance Study (FIS) reports have been made final for the communities listed in the table below. The FIRM and FIS report are the basis of the floodplain management measures that a community is required either to adopt or to show evidence of having an effect in order to qualify or remain qualified for participation in the Federal Emergency Management Agency's (FEMA's) National Flood Insurance Program (NFIP).
2026-17072, Changes in Flood Hazard Determinations
This notice lists communities where the addition or modification of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or the regulatory floodway (hereinafter referred to as flood hazard determinations), as shown on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports, prepared by the Federal Emergency Management Agency (FEMA) for each community, is appropriate because of new scientific or technical data. The FIRM, and where applicable, portions of the FIS report, have been revised to reflect these flood hazard determinations through issuance of a Letter of Map Revision (LOMR), in accordance with Federal Regulations. The current effective community number is shown in the table below and must be used for all new policies and renewals.
2026-17077, Final Flood Hazard Determinations
Starting November 27, 2026, certain communities will see updated flood risk maps that show new or changed flood zones and water levels. These updates affect homeowners, renters, and local governments by changing flood insurance rules and building requirements. If you live in these areas, it’s time to check the new maps to stay safe and save money on insurance!
2026-17070, Changes in Flood Hazard Determinations
New or modified Base (1-percent annual chance) Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, and/or regulatory floodways (hereinafter referred to as flood hazard determinations) as shown on the indicated Letter of Map Revision (LOMR) for each of the communities listed in the table below are finalized. Each LOMR revises the Flood Insurance Rate Maps (FIRMs), and in some cases the Flood Insurance Study (FIS) reports, currently in effect for the listed communities.
2026-17069, Final Flood Hazard Determinations
Flood hazard determinations, which may include additions or modifications of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or regulatory floodways on the Flood Insurance Rate Maps (FIRMs) and where applicable, in the supporting Flood Insurance Study (FIS) reports have been made final for the communities listed in the table below. The FIRM and FIS report are the basis of the floodplain management measures that a community is required either to adopt or to show evidence of having an effect in order to qualify or remain qualified for participation in the Federal Emergency Management Agency's (FEMA's) National Flood Insurance Program (NFIP).
2026-17074, Proposed Flood Hazard Determinations
Comments are requested on proposed flood hazard determinations, which may include additions or modifications of any Base Flood Elevation (BFE), base flood depth, Special Flood Hazard Area (SFHA) boundary or zone designation, or regulatory floodway on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports for the communities listed in the table below. The purpose of this notice is to seek general information and comment regarding the preliminary FIRM, and where applicable, the FIS report that the Federal Emergency Management Agency (FEMA) has provided to the affected communities. The FIRM and FIS report are the basis of the floodplain management measures that the community is required either to adopt or to show evidence of having in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP).
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