FEMA flood map notices
Flood map changes in Isabella County, Michigan
FEMA has published 2 flood hazard notices covering Isabella County, Michigan since November 2023. The most recent, map revision flood hazard determinations, was published Jun 11, 2026.
Notices for Isabella County
- Jun 11, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 39 other counties
- Dec 18, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 25 other counties
Also covered by these notices
FEMA often studies whole watersheds, so one notice can span several counties.
- Limestone County, AL
- Mobile County, AL
- Naugatuck Valley Planning Region, CT
- South Central Connecticut Planning Region, CT
- New Castle County, DE
- Bay County, FL
- Collier County, FL
- Glades County, FL
- Manatee County, FL
- Miami-Dade County, FL
- Nassau County, FL
- Orange County, FL
- Palm Beach County, FL
- Pasco County, FL
- Sarasota County, FL
- Kane County, IL
- Clark County, IN
- Jefferson County, KY
- Barnstable County, MA
- Anne Arundel County, MD
- Aroostook County, ME
- Clare County, MI
- Macomb County, MI
- Houston County, MN
- Alamance County, NC
- Graham County, NC
- Jackson County, NC
- Lincoln County, NC
- Mecklenburg County, NC
- Surry County, NC
- Butler County, OH
- Lucas County, OH
- Shelby County, OH
- Creek County, OK
- Greenville County, SC
- Rutherford County, TN
- Atascosa County, TX
- Collin County, TX
- Dallas County, TX
- Grayson County, TX
- Hays County, TX
- Rockwall County, TX
- Tarrant County, TX
- Hanover County, VA
- Henrico County, VA
- Prince William County, VA
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