FEMA Announces New Flood Risk Map Revisions Nationwide
Published Date: 5/18/2026
Notice
Summary
FEMA is updating flood risk maps for certain communities using new science and data. These changes might affect flood insurance rules and costs, so residents and businesses should check the updated maps and act fast if they want to appeal within 90 days. The updates take effect on specific dates listed for each community, helping everyone stay safer and smarter about flood risks.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 1 costs, 1 mixed.
Updated flood maps can change insurance
FEMA revised Flood Insurance Rate Maps (FIRMs) and supporting Flood Insurance Study (FIS) reports for the communities listed, with revisions finalized on the dates shown in the table (examples include Apr. 9, 2026; Apr. 20, 2026; Apr. 21, 2026; Apr. 27, 2026; May 1, 2026; May 4, 2026). You should check the revised maps online at the FEMA Map Service Center (https://msc.fema.gov) or your local community map repository because these changes may affect flood insurance rules and costs for residents and businesses in the listed communities.
Communities must meet NFIP mapping rules
The revised FIRM and FIS reports are the basis for the floodplain management measures that each listed community is required to adopt or show evidence of having in effect to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP). These determinations reflect minimum requirements under 44 CFR 60.3; communities may have stricter rules.
You have 90 days to appeal map changes
After FEMA publishes the second local newspaper notice, you have 90 days to ask the community to request reconsideration of the flood hazard determination from the Assistant Administrator, Federal Insurance Directorate. Submit any appeal through the Chief Executive Officer of the community listed in the table for your area.
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Key Dates
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Previous / Next Documents
Previous: 2026-09848, Final Flood Hazard Determinations
Starting June 10, 2026, several communities will see updated flood risk maps that show new or changed flood zones and water levels. These changes affect homeowners, renters, and local governments by guiding flood insurance rules and safety plans. If you live in or own property in these areas, expect updates that could impact insurance costs and building rules.
Next: 2026-09851, Final Flood Hazard Determinations
FEMA has finalized updates to flood risk maps for several communities, changing flood zones and water levels that affect flood insurance rules. Homeowners, renters, and local governments need to check these new maps by July 7, 2026, to stay protected and insured. These changes could impact insurance costs and building rules, so it’s smart to stay informed and prepared!