FEMA flood map notices

Flood map changes in San Diego County, California

FEMA has published 33 flood hazard notices covering San Diego County, California since November 2023. The most recent, map revision flood hazard determinations, was published Aug 21, 2026.

Notices for San Diego County

Aug 21, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 24 other counties
Jul 9, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 13 other counties
Jun 11, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 29 other counties
Jun 11, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 19 other counties
May 7, 2026FinalFinal Flood Hazard Determinations
Jan 29, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 14 other counties
Dec 18, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 28 other counties
Dec 18, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 10 other counties
Dec 8, 2025FinalFinal Flood Hazard Determinations
Dec 8, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 25 other counties
Oct 2, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 19 other counties
Oct 2, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 18 other counties
Oct 2, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 30 other counties
Aug 20, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 37 other counties
Aug 20, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 32 other counties
Jul 18, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 33 other counties
Jun 12, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 29 other counties
Jun 11, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 31 other counties
May 12, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 27 other counties
Mar 26, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 27 other counties
Jan 8, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 9 other counties
Oct 30, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 16 other counties
Aug 23, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 13 other counties
Aug 12, 2024ProposedProposed Flood Hazard DeterminationsAlso covers 1 other county · Appeal period closed Nov 12, 2024
Aug 1, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 28 other counties
Jun 28, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 28 other counties
May 31, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 55 other counties
Apr 22, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 18 other counties
Mar 14, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 22 other counties
Feb 16, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 26 other counties
Jan 5, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 47 other counties
Dec 15, 2023Map revisionChanges in Flood Hazard DeterminationsAlso covers 22 other counties
Nov 9, 2023Map revisionChanges in Flood Hazard DeterminationsAlso covers 58 other counties

Also covered by these notices

FEMA often studies whole watersheds, so one notice can span several counties.

What these notices mean

Proposed: FEMA has new draft flood maps. This starts a 90-day window when owners can appeal with technical data. It's the best time to act.
Final: Appeals are resolved. The new maps usually take effect about six months later, when lenders start applying the new zones.
Map revision: A Letter of Map Revision changes one stretch of the map, often after a levee, channel project or new survey.

Notices are organized by county and community, so a notice for your county doesn't mean your property is changing zones. What flood zones mean