FEMA Records
1
Total declarations
Missouri · FEMA + NOAA + National Risk Index
St. Charles County, MO
1 FEMA disaster declarations (2022–2022), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Flood.
- 1
- FEMA declarations
- 1
- Major disasters
- 93
- NRI risk · Relatively Moderate
- Flood
- Top hazard
The verdict
St. Charles County ranks in the riskiest 7% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 0% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Relatively Moderate, based on 1 federal disaster declarations recorded since 2022, most often flood, 74% below the national county average of 4.
- Riskiest 7%
- of U.S. counties for FEMA National Risk Index score
- Relatively Moderate
- FEMA National Risk Index rating
- 1
- FEMA declarations vs 4 national county avg
- 1
- flood declarations, the most common hazard here
FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.
How does St. Charles County compare?
St. Charles County vs. every U.S. county
FEMA disaster declarations, all-time
1 0th percentile higher than 0% of 2,791 counties
Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source FEMA Disaster Declarations Summaries v2 · 2026-07-25
St. Charles County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the Missouri county average
How disaster-prone is St. Charles County?
Declaration frequency
St. Charles County, Missouri has recorded 1 FEMA disaster declarations between 2022 and 2022, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at - declarations per year, or roughly 51% below the Missouri county average of 2.0 and 74% below the national county average of 3.8. The dominant disaster type on record is Flood, with 1 of 1 declarations falling under this category.
FEMA National Risk Index
This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 92.6/100 (Relatively Moderate). Expected Annual Loss is rated Relatively High (roughly $215.2M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Strong Wind stands out as the sharpest exposure here, rated Very High.
Flood exposure & the bottom line
Taken together, St. Charles County's federal disaster history is about as quiet as U.S. counties get, a very low relative risk level on this measure.
Risk Assessment
Risk Level
Very Low
vs. Missouri Avg
-51%
State avg: 2.0
vs. National Avg
-74%
National avg: 3.8
Avg Per Year
-
-
FEMA NRI 8-hazard radar - St. Charles County
How to read this radar
The radar plots St. Charles County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.
NRI Source
FEMA 2023
Latest NRI release
County FIPS
29183
MO state code
Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release
Disaster Types
Flood 1
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Major Disaster - 1 100.0%
of all 1 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2022 | 1 | |
Disaster Declarations
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4665 | SEVERE STORMS AND FLOODING | DR | Flood | 2022-08-08 |
Storm Events in Missouri
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 7,602 | 32 | 65 | $81.5M |
| Hail | 5,142 | 0 | 1 | $94.3M |
| Flash Flood | 2,757 | 52 | 14 | $559.8M |
| Flood | 2,110 | 26 | 7 | $304.8M |
| Drought | 1,433 | 0 | 700 | $106.4M |
Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025
FEMA National Risk Index
Overall Risk
Relatively Moderate
Score: 92.6/100
Expected Annual Loss
Relatively High
$215.2M/year
Social Vulnerability
Very Low
Community Resilience
Very High
Hazard Risk Breakdown
Strong Wind Very High
Hail Relatively High
Tornado Relatively High
Heat Wave Relatively Moderate
Earthquake Relatively Moderate
Landslide Relatively Moderate
Cold Wave Relatively High
Lightning Relatively High
Winter Weather Relatively High
Ice Storm Relatively Moderate
Wildfire Very Low
Drought Relatively Low
Hurricane Very Low
Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
Counties with Similar Risk in Missouri
Disaster Preparedness Guides
Related
Frequently Asked Questions
How many natural disasters has St. Charles County, Missouri had?
St. Charles County, Missouri has received 1 FEMA disaster declarations from 2022 to 2022. Of these, 1 were major disaster declarations.
What is the most common disaster type in St. Charles County?
The most common disaster type in St. Charles County is Flood, with 1 declaration.
How does St. Charles County's disaster risk compare to the Missouri average?
St. Charles County has 1 disaster declarations, which is 51% lower than the Missouri county average of 2.0 declarations. Compared to the national county average of 3.8, it is 74% lower.
How many major FEMA disaster declarations has St. Charles County received?
St. Charles County has received 1 major disaster declaration, representing 100% of all 1 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Missouri?
The most common storm types in Missouri include Thunderstorm Wind (7,602 events), Hail (5,142 events), Flash Flood (2,757 events). NOAA storm event data covers severe weather from 2015 to 2025.
What is the overall disaster risk level for St. Charles County?
St. Charles County has just 1 FEMA disaster declaration on record, placing it in the very-low-risk band, among the quieter counties in FEMA's declaration history.
What is the FEMA National Risk Index score for St. Charles County?
According to the FEMA National Risk Index, St. Charles County, Missouri has an overall risk score of 92.6 out of 100 (Relatively Moderate). The county's social vulnerability rating is Very Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively High, representing $215.2M in annualized losses.
Which natural hazard poses the greatest risk to St. Charles County?
Based on FEMA NRI data, the highest-risk natural hazard in St. Charles County is Strong Wind (risk rating: Very High). Other significant hazards include Hail (Relatively High) and Tornado (Relatively High). These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology
Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.
Storm event data is sourced from the NOAA Storm Events Database (2015–2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.
This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.
What this means for St. Charles County
St. Charles County, MO runs 51% below the Missouri county average for federal disaster declarations (1 vs 2), a very low historical load overall.
- Its most common federal declaration type is major disaster (1 of 1) - know the hazards most likely here before they happen. Missouri overview
- See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
- Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide
Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.
According to the Federal Emergency Management Agency, this profile draws on 2,791 tracked U.S. counties in FEMA's Disaster Declarations Summaries dataset, refreshed as of 2026-07-25. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015–2025. ncdc.noaa.gov/stormevents
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial
Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →
Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.