Missoula, MT
Missoula County in Montana has 4 FEMA disaster declarations on record covering 1974–2018, most recently Flooding on Oct 31, 2018 (DR-4405). Its flood risk grade is A (Low risk), ranking #2199 of 3,277 U.S. counties, with 7 NFIP flood insurance claims totaling $47,676 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Missoula County
The 4 most recent federally declared disasters affecting Missoula County, MT (1974–2018). Total declarations on record: 4.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Oct 31, 2018 | Flood | Flooding | DR-4405 |
| Sep 13, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3253 |
| May 27, 1981 | Flood | Severe Storms & Flooding | DR-640 |
| Jan 29, 1974 | Flood | Severe Storms, Flooding & Landslides | DR-417 |
Score Breakdown
The composite score of 10 is calculated from four weighted factors. See our methodology for details.
Other Counties in Montana
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Carbon | A | 10 | 1 | 5 |
| Daniels | A | 10 | 0 | 5 |
| Fergus | A | 10 | 0 | 5 |
| Garfield | A | 10 | 0 | 4 |
| Golden Valley | A | 10 | 0 | 4 |
| Musselshell | A | 10 | 0 | 5 |
More Counties in Montana
Frequently Asked Questions
How many FEMA disaster declarations does Missoula County, MT have?
Missoula County, MT has 4 federal disaster declarations on FEMA record (1974–2018). The 4 most recent are: Flooding (declared Oct 31, 2018, DR-4405); Hurricane Katrina Evacuation (declared Sep 13, 2005, DR-3253); Severe Storms & Flooding (declared May 27, 1981, DR-640); Severe Storms, Flooding & Landslides (declared Jan 29, 1974, DR-417). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Missoula County, MT?
Missoula County is graded A (composite score 10/100, low risk). It ranks #2199 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 Missoula County?
7 NFIP flood insurance claims have been filed in Missoula County, MT, totaling $47,676 in payouts. The average claim is $6,811. Source: FEMA FimaNfipClaims v2 dataset.
Has Missoula County, MT had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Missoula County was Flooding on Oct 31, 2018 (DR-4405). The county has 4 declared disasters in the OpenFEMA record covering 1974–2018.
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.