Floodplain Mapping

FEMA’s interactive Map Service Center can be used to view the currently effective Flood Insurance Rate Map (FIRM), Flood Insurance Study (FIS), and any Letters of Map Change (LOMC).


The City of Charleston GIS portal includes resources such as:  

  • Currently effective and preliminary Flood Insurance Rate Maps (FIRM)
  • Tide trends and projected tides ("Tide Eye")
  • Sea Level Rise (SLR) viewer

Stream Gauges and Stream-flow Data:

Local Sea Level Rise (SLR) Projections: