FEMA Records
6
Total declarations
California · FEMA + NOAA + National Risk Index
Glenn County, CA
6 FEMA disaster declarations (2020–2024), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.
- 6
- FEMA declarations
- 4
- Major disasters
- 74
- NRI risk · Relatively Low
- Flood
- Top hazard
FEMA's National Risk Index places Glenn County in the top 26% of U.S. counties for overall natural-hazard risk, and its FEMA disaster-declaration count is higher than 81% of all 2,729 counties tracked.
How does Glenn County compare?
- Glenn County
- 6
- California county avg
- 6.9
- National county avg
- 3.7
How disaster-prone is Glenn County?
Glenn County, California has recorded 6 FEMA disaster declarations between 2020 and 2024, of which 4 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 1.5 declarations per year across a 4-year record, or roughly 13% below the California county average of 6.9 and 60% above the national county average of 3.7.
The dominant disaster type on record is Flood, with 3 of 6 declarations falling under this category. This county carries a high composite score on FEMA's National Risk Index, 74.4/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $40.9M in annualized losses), and a Very Low social-vulnerability profile combined with Very Low community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Drought stands out as the sharpest exposure here, rated Relatively High.
Taken together, these indicators put Glenn County at a moderate relative risk level, not the calmest county on record, but not among the most disaster-prone either.
Risk Assessment
Risk Level
Moderate
vs. California Avg
-13%
State avg: 6.9
vs. National Avg
+60%
National avg: 3.7
Avg Per Year
1.5
Over 4 years
FEMA NRI 8-hazard radar - Glenn County
How to read this radar
The radar plots Glenn 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
06021
CA state code
Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release
Disaster Types
Flood 3
Severe Storm 2
Biological 1
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Major Disaster - 4 66.7%
of all 6 declarations
Emergency - 2 33.3%
of all 6 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2024 | 1 | |
| 2023 | 4 | |
| 2020 | 1 | |
Disaster Declarations
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4769 | SEVERE WINTER STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES | DR | Severe Storm | 2024-04-13 |
| 4699 | SEVERE WINTER STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR | Severe Storm | 2023-04-03 |
| 3592 | SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | EM | Flood | 2023-03-10 |
| 4683 | SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR | Flood | 2023-01-14 |
| 3591 | SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES | EM | Flood | 2023-01-09 |
| 4482 | COVID-19 PANDEMIC | DR | Biological | 2020-03-22 |
Storm Events in California
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| High Wind | 4,403 | 14 | 29 | $228.9M |
| Flood | 3,518 | 32 | 31 | $990.7M |
| Heavy Snow | 1,916 | 6 | 0 | $1.6M |
| Dense Fog | 1,665 | 55 | 150 | $2.8M |
| Strong Wind | 1,482 | 40 | 43 | $15.7M |
Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 74.4/100
Expected Annual Loss
Relatively Low
$40.9M/year
Social Vulnerability
Very Low
Community Resilience
Very Low
Hazard Risk Breakdown
Drought Relatively High
Earthquake Relatively Moderate
Wildfire Relatively Moderate
Landslide Relatively Low
Heat Wave Relatively Low
Volcanic Activity Very Low
Lightning Very Low
Avalanche Very Low
Tornado Very Low
Hail Very Low
Strong Wind Very Low
Winter Weather Very Low
Cold Wave No Rating
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 California
Disaster Preparedness Guides
Related
Frequently Asked Questions
How many natural disasters has Glenn County, California had?
Glenn County, California has received 6 FEMA disaster declarations from 2020 to 2024. Of these, 4 were major disaster declarations.
What is the most common disaster type in Glenn County?
The most common disaster type in Glenn County is Flood, with 3 declarations. Other disaster types include Severe Storm (2), Biological (1).
How does Glenn County's disaster risk compare to the California average?
Glenn County has 6 disaster declarations, which is 13% lower than the California county average of 6.9 declarations. Compared to the national county average of 3.7, it is 60% higher.
How many major FEMA disaster declarations has Glenn County received?
Glenn County has received 4 major disaster declarations, representing 67% of all 6 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in California?
The most common storm types in California include High Wind (4,403 events), Flood (3,518 events), Heavy Snow (1,916 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Glenn County?
The most active year for disaster declarations in Glenn County was 2023, with 4 declarations. The county has FEMA disaster data spanning 2020 to 2024.
What is the overall disaster risk level for Glenn County?
With 6 FEMA disaster declarations on record, Glenn County lands in the moderate-risk band, not unusually disaster-prone, but not spared either.
What is the FEMA National Risk Index score for Glenn County?
According to the FEMA National Risk Index, Glenn County, California has an overall risk score of 74.4 out of 100 (Relatively Low). The county's social vulnerability rating is Very Low and community resilience is Very Low. The Expected Annual Loss (EAL) score is Relatively Low, representing $40.9M in annualized losses.
Which natural hazard poses the greatest risk to Glenn County?
Based on FEMA NRI data, the highest-risk natural hazard in Glenn County is Drought (risk rating: Relatively High). Other significant hazards include Earthquake (Relatively Moderate) and Wildfire (Relatively Moderate). 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 Glenn County
Glenn County, CA has 6 FEMA disaster declarations on record, a moderate historical disaster load, 13% below the California county average.
- Its most common federal declaration type is major disaster (4 of 6) - know the hazards most likely here before they happen. California 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.
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 report a data error.