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Alexandria, VA

Flood Risk Score: 20/100 · Rank #205 of 3,277 counties

Alexandria County in Virginia has 9 FEMA disaster declarations on record covering 1972–2018, most recently Hurricane Florence on Sep 11, 2018 (DR-3403). Its flood risk grade is A (Low risk), ranking #205 of 3,277 U.S. counties, with 33 NFIP flood insurance claims totaling $519,580 in payouts. Flood risk is relatively low compared to the national average.

20
Risk Score
33
NFIP Claims
$519,580
Total Payouts
9
Disasters
$15,745
Avg Claim
33
Active Policies

FEMA Disaster Declarations in Alexandria County

The 9 most recent federally declared disasters affecting Alexandria County, VA (1972–2018). Total declarations on record: 9.

DeclaredIncident TypeTitleFEMA Disaster #
Sep 11, 2018HurricaneHurricane FlorenceDR-3403
Oct 29, 2012HurricaneHurricane SandyDR-3359
Sep 3, 2011HurricaneHurricane IreneDR-4024
Sep 12, 2005HurricaneHurricane Katrina EvacuationDR-3240
Sep 18, 2003HurricaneHurricane IsabelDR-1491
Nov 9, 1985FloodSevere Storms & FloodingDR-755
Oct 10, 1972FloodSevere Storms & FloodingDR-359
Oct 7, 1972FloodSevere Storms & FloodingDR-358
Jun 23, 1972FloodTropical Storm AgnesDR-339

Score Breakdown

The composite score of 20 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
19
Claim Severity
20%
0
Year-over-Year Trend
15%
100

Other Counties in Virginia

CountyGradeScoreClaimsDisasters
BuchananA20149
RichmondA201310
HenricoB211011
DanvilleA19178
RoanokeA18158
TazewellA17214
View All Counties in Virginia

Frequently Asked Questions

How many FEMA disaster declarations does Alexandria County, VA have?

Alexandria County, VA has 9 federal disaster declarations on FEMA record (1972–2018). The 5 most recent are: Hurricane Florence (declared Sep 11, 2018, DR-3403); Hurricane Sandy (declared Oct 29, 2012, DR-3359); Hurricane Irene (declared Sep 3, 2011, DR-4024); Hurricane Katrina Evacuation (declared Sep 12, 2005, DR-3240); Hurricane Isabel (declared Sep 18, 2003, DR-1491). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Alexandria County, VA?

Alexandria County is graded A (composite score 20/100, low risk). It ranks #205 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 Alexandria County?

33 NFIP flood insurance claims have been filed in Alexandria County, VA, totaling $519,580 in payouts. The average claim is $15,745. Source: FEMA FimaNfipClaims v2 dataset.

Has Alexandria County, VA had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Alexandria County was Hurricane Florence on Sep 11, 2018 (DR-3403). The county has 9 declared disasters in the OpenFEMA record covering 1972–2018.

this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.

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.

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.