Loudoun, VA
Loudoun County in Virginia has 7 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 #914 of 3,277 U.S. counties, with 5 NFIP flood insurance claims totaling $4,164 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Loudoun County
The 7 most recent federally declared disasters affecting Loudoun County, VA (1972–2018). Total declarations on record: 7.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 11, 2018 | Hurricane | Hurricane Florence | DR-3403 |
| Nov 26, 2012 | Hurricane | Hurricane Sandy | DR-4092 |
| Oct 29, 2012 | Hurricane | Hurricane Sandy | DR-3359 |
| Sep 12, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3240 |
| Sep 18, 2003 | Hurricane | Hurricane Isabel | DR-1491 |
| Jan 27, 1996 | Flood | Flooding, High Winds, and Wind Driven Rain | DR-1098 |
| Jun 23, 1972 | Flood | Tropical Storm Agnes | DR-339 |
Score Breakdown
The composite score of 13 is calculated from four weighted factors. See our methodology for details.
Other Counties in Virginia
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Fluvanna | A | 13 | 0 | 10 |
| King William | A | 13 | 0 | 11 |
| Lunenburg | A | 13 | 0 | 10 |
| New Kent | A | 13 | 1 | 10 |
| Nottoway | A | 13 | 0 | 10 |
| Powhatan | A | 13 | 0 | 11 |
More Counties in Virginia
Frequently Asked Questions
How many FEMA disaster declarations does Loudoun County, VA have?
Loudoun County, VA has 7 federal disaster declarations on FEMA record (1972–2018). The 5 most recent are: Hurricane Florence (declared Sep 11, 2018, DR-3403); Hurricane Sandy (declared Nov 26, 2012, DR-4092); Hurricane Sandy (declared Oct 29, 2012, DR-3359); 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 Loudoun County, VA?
Loudoun County is graded A (composite score 13/100, low risk). It ranks #914 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 Loudoun County?
5 NFIP flood insurance claims have been filed in Loudoun County, VA, totaling $4,164 in payouts. The average claim is $833. Source: FEMA FimaNfipClaims v2 dataset.
Has Loudoun County, VA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Loudoun County was Hurricane Florence on Sep 11, 2018 (DR-3403). The county has 7 declared disasters in the OpenFEMA record covering 1972–2018.
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.
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.