FEMA flood map notices
Flood map changes in Hawaii
Since November 2023, FEMA has published flood hazard notices covering 3 of Hawaii's 5 counties.
| County | Notices | Most recent | Appeal window |
|---|---|---|---|
| Hawaii County | 3 | Aug 21, 2026 | — |
| Maui County | 5 | Aug 21, 2026 | — |
| Honolulu County | 1 | Nov 9, 2023 | — |
All counties in Hawaii
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