What's Happening in St. Clair County
FEMA's Great Lakes Coastal Flood Study has led to significant changes in St. Clair County's flood maps. The updated study identified coastal flood hazards along the St. Clair River and Lake Huron shoreline, adding new VE and AE zones where wave action and high water levels pose risks to homes.
- Zone VE (Coastal High-Hazard): Areas subject to wave action of 3 feet or more during a base flood event — the highest-risk coastal zone along the Lake Huron shore.
- Zone AE (High-Risk): Areas with a 1% annual chance of flooding where base flood elevations have been determined.
- Zone X (Low-to-Moderate Risk): Areas outside the 1% annual chance floodplain. Flood insurance is not required but is still recommended.
Properties along the St. Clair River, Lake Huron shoreline, and around Port Huron, Marysville, and the city of St. Clair are most affected by the new maps.
What the FEMA Letter Looks Like
Letter of Final Determination (LFD)
FEMA issued a Letter of Final Determination in December 2025, addressed to St. Clair County community officials. This letter confirmed that new flood maps will take effect on June 10, 2026. You may have received a separate notification from your city or township about the map changes.
Your mortgage lender will review your property's updated flood zone status. If your property moved into a high-risk zone (AE or VE), your lender will send you a notice requiring flood insurance — typically giving you 45 days to obtain coverage. If you don't act, the lender may force-place flood insurance at a significantly higher cost.
What You Should Do Now
- Check your new flood zone — Use our free flood zone lookup tool to see if your St. Clair County property is now in a high-risk zone.
- Don't wait for your mortgage company — Getting ahead of the process gives you more options and better rates.
- Compare NFIP and private flood options — Private flood insurance is often 20–40% cheaper than the National Flood Insurance Program.
- Consider an Elevation Certificate — If your home is near a zone boundary, an Elevation Certificate may help reduce your premium or remove the requirement.
- Call us — We specialize in exactly this situation. Kevin Huggett Agency has been helping homeowners navigate flood zone changes since 2006.
What Flood Insurance Costs in St. Clair County
Flood insurance premiums in St. Clair County depend on your flood zone, your home's elevation, and the coverage amount. Here are typical ranges for homes along the St. Clair River and Lake Huron:
- Zone AE: $1,200–$3,800/year for residential properties
- Zone VE: $2,500–$6,500/year for residential properties
- Zone X (preferred risk): $400–$800/year
Private flood insurance may be 20–40% less than NFIP in many cases. We compare multiple carriers to find you the best rate available for your St. Clair County property.
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