Allegheny, PA
Allegheny County in Pennsylvania has 8 FEMA disaster declarations on record covering 1972–2012, most recently Hurricane Sandy on Oct 29, 2012 (DR-3356). Its flood risk grade is A (Low risk), ranking #2993 of 3,277 U.S. counties, with 150 NFIP flood insurance claims totaling $3,510,497 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Allegheny County
The 8 most recent federally declared disasters affecting Allegheny County, PA (1972–2012). Total declarations on record: 8.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Oct 29, 2012 | Hurricane | Hurricane Sandy | DR-3356 |
| Sep 10, 2005 | Hurricane | Hurricane Katrina | DR-3235 |
| Sep 19, 2004 | Hurricane | Tropical Depression Ivan | DR-1557 |
| Jan 21, 1996 | Flood | Severe Storms and Flooding | DR-1093 |
| Jun 5, 1986 | Flood | Severe Storms & Flooding | DR-766 |
| Nov 9, 1985 | Flood | Severe Storms & Flooding | DR-754 |
| Aug 27, 1984 | Flood | Severe Storms & Flooding | DR-721 |
| Jun 23, 1972 | Flood | Tropical Storm Agnes | DR-340 |
Score Breakdown
The composite score of 8 is calculated from four weighted factors. See our methodology for details.
Other Counties in Pennsylvania
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Centre | A | 8 | 8 | 8 |
| Erie | A | 8 | 13 | 5 |
| Fayette | A | 8 | 24 | 7 |
| Westmoreland | A | 8 | 63 | 9 |
| Statewide | A | 10 | 0 | 4 |
| Elk | A | 10 | 4 | 5 |
More Counties in Pennsylvania
Frequently Asked Questions
How many FEMA disaster declarations does Allegheny County, PA have?
Allegheny County, PA has 8 federal disaster declarations on FEMA record (1972–2012). The 5 most recent are: Hurricane Sandy (declared Oct 29, 2012, DR-3356); Hurricane Katrina (declared Sep 10, 2005, DR-3235); Tropical Depression Ivan (declared Sep 19, 2004, DR-1557); Severe Storms and Flooding (declared Jan 21, 1996, DR-1093); Severe Storms & Flooding (declared Jun 5, 1986, DR-766). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Allegheny County, PA?
Allegheny County is graded A (composite score 8/100, low risk). It ranks #2993 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 Allegheny County?
150 NFIP flood insurance claims have been filed in Allegheny County, PA, totaling $3,510,497 in payouts. The average claim is $23,403. Source: FEMA FimaNfipClaims v2 dataset.
Has Allegheny County, PA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Allegheny County was Hurricane Sandy on Oct 29, 2012 (DR-3356). The county has 8 declared disasters in the OpenFEMA record covering 1972–2012.
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.