Jefferson, MO
Jefferson County in Missouri has 8 FEMA disaster declarations on record covering 1982–2017, most recently Severe Storms, Tornadoes, Straight-Line Winds and Flooding on Jun 2, 2017 (DR-4317). Its flood risk grade is A (Low risk), ranking #3236 of 3,277 U.S. counties, with 99 NFIP flood insurance claims totaling $3,892,301 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Jefferson County
The 8 most recent federally declared disasters affecting Jefferson County, MO (1982–2017). Total declarations on record: 8.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Jun 2, 2017 | Flood | Severe Storms, Tornadoes, Straight-Line Winds and Flooding | DR-4317 |
| Jan 21, 2016 | Flood | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | DR-4250 |
| Jan 2, 2016 | Flood | Severe Storms, Tornadoes, Straight-Line Winds, and Flooding | DR-3374 |
| Sep 10, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3232 |
| May 12, 2000 | Flood | Severe Thunderstorms and Flash Flooding | DR-1328 |
| Jul 9, 1993 | Flood | Severe Storms & Flooding | DR-995 |
| May 11, 1993 | Flood | Severe Storms & Flooding | DR-989 |
| Dec 10, 1982 | Flood | Severe Storms and Flooding | DR-672 |
Score Breakdown
The composite score of 6 is calculated from four weighted factors. See our methodology for details.
Other Counties in Missouri
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Camden | A | 5 | 11 | 5 |
| McDonald | A | 5 | 39 | 6 |
| Lincoln | A | 5 | 81 | 6 |
| Greene | A | 8 | 10 | 7 |
| Franklin | A | 8 | 58 | 10 |
| Gasconade | A | 8 | 19 | 8 |
More Counties in Missouri
Frequently Asked Questions
How many FEMA disaster declarations does Jefferson County, MO have?
Jefferson County, MO has 8 federal disaster declarations on FEMA record (1982–2017). The 5 most recent are: Severe Storms, Tornadoes, Straight-Line Winds and Flooding (declared Jun 2, 2017, DR-4317); Severe Storms, Tornadoes, Straight-Line Winds, and Flooding (declared Jan 21, 2016, DR-4250); Severe Storms, Tornadoes, Straight-Line Winds, and Flooding (declared Jan 2, 2016, DR-3374); Hurricane Katrina Evacuation (declared Sep 10, 2005, DR-3232); Severe Thunderstorms and Flash Flooding (declared May 12, 2000, DR-1328). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Jefferson County, MO?
Jefferson County is graded A (composite score 6/100, low risk). It ranks #3236 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 Jefferson County?
99 NFIP flood insurance claims have been filed in Jefferson County, MO, totaling $3,892,301 in payouts. The average claim is $39,316. Source: FEMA FimaNfipClaims v2 dataset.
Has Jefferson County, MO had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Jefferson County was Severe Storms, Tornadoes, Straight-Line Winds and Flooding on Jun 2, 2017 (DR-4317). The county has 8 declared disasters in the OpenFEMA record covering 1982–2017.
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.
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.