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Suffolk, MA

Flood Risk Score: 11/100 · Rank #1663 of 3,277 counties

Suffolk County in Massachusetts has 16 FEMA disaster declarations on record covering 1972–2023, most recently Hurricane Lee on Sep 15, 2023 (DR-3599). Its flood risk grade is A (Low risk), ranking #1663 of 3,277 U.S. counties, with 47 NFIP flood insurance claims totaling $1,024,313 in payouts. Flood risk is relatively low compared to the national average.

11
Risk Score
47
NFIP Claims
$1,024,313
Total Payouts
16
Disasters
$21,794
Avg Claim
47
Active Policies

FEMA Disaster Declarations in Suffolk County

The 16 most recent federally declared disasters affecting Suffolk County, MA (1972–2023). Total declarations on record: 16.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 15, 2023HurricaneHurricane LeeDR-3599
Dec 19, 2012HurricaneHurricane SandyDR-4097
Oct 28, 2012HurricaneHurricane SandyDR-3350
Aug 26, 2011HurricaneHurricane IreneDR-3330
Sep 2, 2010HurricaneHurricane EarlDR-3315
Sep 13, 2005HurricaneHurricane Katrina EvacuationDR-3252
Apr 21, 2004FloodFloodingDR-1512
Jun 23, 1998FloodHeavy Rains and FloodingDR-1224
Oct 25, 1996FloodExtreme Weather Conditons and FloodingDR-1142
Oct 23, 1996FloodExtreme Weather Conditions and FloodingDR-3119
Dec 21, 1992Coastal StormWinter Coastal StormDR-975
Nov 4, 1991Coastal StormCoastal StormDR-920
Aug 26, 1991HurricaneHurricane BobDR-914
Oct 28, 1985HurricaneHurricane GloriaDR-751
Feb 10, 1978FloodCoastal Storms, Flood, Ice & SnowDR-546
Mar 6, 1972FloodSevere Storms & FloodingDR-325

Score Breakdown

The composite score of 11 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
34
Claim Severity
20%
0
Year-over-Year Trend
15%
19

Other Counties in Massachusetts

CountyGradeScoreClaimsDisasters
HampshireA1147
NorfolkA117217
BerkshireA1117
FranklinA1107
BarnstableA129813
EssexA1212116
View All Counties in Massachusetts

Frequently Asked Questions

How many FEMA disaster declarations does Suffolk County, MA have?

Suffolk County, MA has 16 federal disaster declarations on FEMA record (1972–2023). The 5 most recent are: Hurricane Lee (declared Sep 15, 2023, DR-3599); Hurricane Sandy (declared Dec 19, 2012, DR-4097); Hurricane Sandy (declared Oct 28, 2012, DR-3350); Hurricane Irene (declared Aug 26, 2011, DR-3330); Hurricane Earl (declared Sep 2, 2010, DR-3315). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Suffolk County, MA?

Suffolk County is graded A (composite score 11/100, low risk). It ranks #1663 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).

How many NFIP flood insurance claims have been filed in Suffolk County?

47 NFIP flood insurance claims have been filed in Suffolk County, MA, totaling $1,024,313 in payouts. The average claim is $21,794. Source: FEMA FimaNfipClaims v2 dataset.

Has Suffolk County, MA had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Suffolk County was Hurricane Lee on Sep 15, 2023 (DR-3599). The county has 16 declared disasters in the OpenFEMA record covering 1972–2023.

For this entity, the underlying data on this page comes from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.

Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.

Source: FEMA OpenFEMA datasets, 2026.