St. Clair County Flood Hazard Information


Effective Map Products

Effective Flood Insurance Rate Maps for St. Clair County may be viewed and/or downloaded at the FEMA Flood Map Service Center (MSC)



Preliminary Map Products

2022 Preliminary FIRMs, FIS, and FIRM database are available to download from the FEMA MSC


Additional Resources

  • Floodplain Mapping 101
  • Destined for DFIRMs - stream studies becoming flood maps
  • Building Footprints
  • Topographic Wetness Index
  • Links to National Flood Insurance Program (NFIP) Information