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Cobb, GA

Flood Risk Score: 18/100 · Rank #347 of 3,277 counties

Cobb County in Georgia has 6 FEMA disaster declarations on record covering 1966–2017, most recently Hurricane Irma on Sep 15, 2017 (DR-4338). Its flood risk grade is A (Low risk), ranking #347 of 3,277 U.S. counties, with 53 NFIP flood insurance claims totaling $2,249,559 in payouts. Flood risk is relatively low compared to the national average.

18
Risk Score
53
NFIP Claims
$2,249,559
Total Payouts
6
Disasters
$42,445
Avg Claim
53
Active Policies

FEMA Disaster Declarations in Cobb County

The 6 most recent federally declared disasters affecting Cobb County, GA (1966–2017). Total declarations on record: 6.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 15, 2017HurricaneHurricane IrmaDR-4338
Sep 8, 2017HurricaneHurricane IrmaDR-3387
Sep 5, 2005HurricaneHurricane Katrina EvacuationDR-3218
Sep 18, 2004HurricaneHurricane IvanDR-1554
Oct 10, 1995HurricaneHurricane OpalDR-1071
Mar 14, 1966FloodFloodingDR-214

Score Breakdown

The composite score of 18 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
13
Claim Severity
20%
0
Year-over-Year Trend
15%
100

Other Counties in Georgia

CountyGradeScoreClaimsDisasters
BibbA18125
RichmondA18186
LowndesA19118
BryanA203610
CherokeeA1476
CatoosaA14134
View All Counties in Georgia

Frequently Asked Questions

How many FEMA disaster declarations does Cobb County, GA have?

Cobb County, GA has 6 federal disaster declarations on FEMA record (1966–2017). The 5 most recent are: Hurricane Irma (declared Sep 15, 2017, DR-4338); Hurricane Irma (declared Sep 8, 2017, DR-3387); Hurricane Katrina Evacuation (declared Sep 5, 2005, DR-3218); Hurricane Ivan (declared Sep 18, 2004, DR-1554); Hurricane Opal (declared Oct 10, 1995, DR-1071). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Cobb County, GA?

Cobb County is graded A (composite score 18/100, low risk). It ranks #347 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 Cobb County?

53 NFIP flood insurance claims have been filed in Cobb County, GA, totaling $2,249,559 in payouts. The average claim is $42,445. Source: FEMA FimaNfipClaims v2 dataset.

Has Cobb County, GA had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Cobb County was Hurricane Irma on Sep 15, 2017 (DR-4338). The county has 6 declared disasters in the OpenFEMA record covering 1966–2017.

The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.

The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.

Source: FEMA OpenFEMA datasets, 2026.