Flood history · Deal Island, MD 21821
Flood insurance claims in Deal Island, MD 21821
132 claims since 1980 and $1.1 million paid. Here's what the public record shows, and how to check a specific address.
Claims by year
Every NFIP flood insurance claim reported in ZIP 21821 since 1978.
What the record says
Almost all claims here (92%) were on properties in high-risk zones (A or V). In those zones, federally regulated lenders require flood insurance.
One event dominates the record: Hurricane Sandy accounts for 41% of all claims in this ZIP code.
17 claims were filed in the last 10 years.
The most commonly recorded cause is tidal water overflow: coastal surge and high tides.
Somerset County * takes part in FEMA's Community Rating System (class 7), which can lower flood insurance premiums by up to 15% in high-risk zones.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Hurricane Sandy | 2012 | 54 | 41% |
| Hurricane Isabel | 2003 | 29 | 22% |
| Hurricane Floyd | 1999 | 11 | 8% |
| Hurricane Irene | 2011 | 5 | 4% |
| Hurricane Eta | 2020 | 1 | 1% |
| Hurricane Isaias | 2020 | 1 | 1% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in Somerset County
Flood, hurricane and storm declarations since 2000.
6 flood, storm or hurricane declarations for Somerset County since 2000.
Check a specific address in Deal Island.
ZIP-level history is the backdrop. See the official FEMA flood zone, ground elevation and next steps for one property, free.
Sources: FEMA OpenFEMA NFIP Redacted Claims (v3) and Disaster Declarations Summaries, FEMA NFIP Community Status Book; place names from GeoNames (CC BY 4.0). Data as of 2026-10-09. Payments are net building + contents payments in dollars at the time paid, not adjusted for inflation. Claims are grouped by the ZIP code reported on the claim. This product uses the FEMA OpenFEMA API but is not endorsed by FEMA. Information only; not an official flood zone determination or insurance advice.