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B

Jefferson, AL

Flood Risk Score: 21/100 · Rank #132 of 3,277 counties

Jefferson County in Alabama has 14 FEMA disaster declarations on record covering 1973–2024, most recently Hurricane Helene on Sep 26, 2024 (DR-3618). Its flood risk grade is B (Moderate risk), ranking #132 of 3,277 U.S. counties, with 76 NFIP flood insurance claims totaling $1,907,418 in payouts. Flood risk is relatively low compared to the national average.

21
Risk Score
76
NFIP Claims
$1,907,418
Total Payouts
14
Disasters
$25,098
Avg Claim
76
Active Policies

FEMA Disaster Declarations in Jefferson County

The 14 most recent federally declared disasters affecting Jefferson County, AL (1973–2024). Total declarations on record: 14.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 26, 2024HurricaneHurricane HeleneDR-3618
Sep 14, 2020HurricaneHurricane SallyDR-3545
Oct 8, 2017HurricaneHurricane NateDR-3394
Sep 11, 2017HurricaneHurricane IrmaDR-3389
Aug 30, 2008HurricaneHurricane GustavDR-3292
Sep 10, 2005HurricaneHurricane Katrina EvacuationDR-3237
Aug 29, 2005HurricaneHurricane KatrinaDR-1605
Jul 10, 2005HurricaneHurricane DennisDR-1593
Sep 15, 2004HurricaneHurricane IvanDR-1549
Oct 4, 1995HurricaneHurricane OpalDR-1070
Apr 18, 1979FloodStorms, Wind, FloodingDR-578
Apr 9, 1977FloodSevere Storms & FloodingDR-532
Mar 14, 1975FloodSevere Storms & FloodingDR-458
May 29, 1973FloodSevere Storms & FloodingDR-388

Score Breakdown

The composite score of 21 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
1
Disaster Frequency
25%
30
Claim Severity
20%
0
Year-over-Year Trend
15%
87

Other Counties in Alabama

CountyGradeScoreClaimsDisasters
ShelbyB212911
TuscaloosaB211211
MontgomeryB221812
HoustonA20713
ChoctawA17217
ClarkeA17017
View All Counties in Alabama

Frequently Asked Questions

How many FEMA disaster declarations does Jefferson County, AL have?

Jefferson County, AL has 14 federal disaster declarations on FEMA record (1973–2024). The 5 most recent are: Hurricane Helene (declared Sep 26, 2024, DR-3618); Hurricane Sally (declared Sep 14, 2020, DR-3545); Hurricane Nate (declared Oct 8, 2017, DR-3394); Hurricane Irma (declared Sep 11, 2017, DR-3389); Hurricane Gustav (declared Aug 30, 2008, DR-3292). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Jefferson County, AL?

Jefferson County is graded B (composite score 21/100, moderate risk). It ranks #132 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 Jefferson County?

76 NFIP flood insurance claims have been filed in Jefferson County, AL, totaling $1,907,418 in payouts. The average claim is $25,098. Source: FEMA FimaNfipClaims v2 dataset.

Has Jefferson County, AL had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Jefferson County was Hurricane Helene on Sep 26, 2024 (DR-3618). The county has 14 declared disasters in the OpenFEMA record covering 1973–2024.

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.