FEMA flood map notices
Flood map changes in Lancaster County, South Carolina
FEMA has published 2 flood hazard notices covering Lancaster County, South Carolina since November 2023. The most recent, map revision flood hazard determinations, was published May 7, 2026.
Notices for Lancaster County
- May 7, 2026Map revisionChanges in Flood Hazard DeterminationsAlso covers 24 other counties
- Dec 8, 2025Map revisionChanges in Flood Hazard DeterminationsAlso covers 19 other counties
Also covered by these notices
FEMA often studies whole watersheds, so one notice can span several counties.
- Alachua County, FL
- Lake County, FL
- Manatee County, FL
- Monroe County, FL
- Pasco County, FL
- Polk County, FL
- Sarasota County, FL
- Hamilton County, IN
- Boyle County, KY
- Essex County, MA
- Kent County, MI
- Hennepin County, MN
- Scott County, MN
- Mecklenburg County, NC
- Richland County, SC
- Sumter County, SC
- Rutherford County, TN
- Burnet County, TX
- Collin County, TX
- Denton County, TX
- Harris County, TX
- Johnson County, TX
- Montgomery County, TX
- Tarrant County, TX
- Travis County, TX
- 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