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Marengo County, AL

2 FEMA disaster declarations (2021–2024), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Hurricane.

2
FEMA declarations
1
Major disasters
52
NRI risk · Relatively Low
Hurricane
Top hazard

FEMA's National Risk Index places Marengo County in the top 48% of U.S. counties for overall natural-hazard risk, and its FEMA disaster-declaration count is higher than 22% of all 2,729 counties tracked.

How does Marengo County compare?

FEMA disaster declarations, this county versus the Alabama county average and the national county average.

Marengo County
2
Alabama county avg
2.4
National county avg
3.7

How disaster-prone is Marengo County?

Marengo County, Alabama has recorded 2 FEMA disaster declarations between 2021 and 2024, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.7 declarations per year across a 3-year record, or roughly 17% below the Alabama county average of 2.4 and 47% below the national county average of 3.7. Declaration counts reflect federal recognition of event severity, not pure hazard frequency — smaller incidents handled locally never appear in FEMA's ledger.

The dominant disaster type on record is Hurricane, with 2 of 2 declarations falling under this category. FEMA's National Risk Index assigns this county an overall risk rating of Relatively Low (composite score 52.2/100), driven by an Expected Annual Loss rating of Very Low equivalent to roughly $10.4M in annualized losses. Social vulnerability scores Very High and community resilience scores Relatively Low — two factors that modify raw hazard exposure into actual harm. The single highest-risk natural hazard identified for this county is Strong Wind (Relatively Moderate).

NFIP flood insurance claims data for this county is not present in the FEMA claims extract, which typically indicates either low historical flood activity or low policy penetration. Taken together, these indicators place Marengo County at a low relative risk level for federally recognized disasters. Households should pair this historical lens with forward-looking hazard maps — flood zones, wildfire risk overlays, and seismic zones published by FEMA and state emergency management — before making preparedness, insurance, or relocation decisions.

Risk Assessment

How Marengo County's disaster history compares to state and national averages.

Risk Level

Low

vs. Alabama Avg

-17%

State avg: 2.4

vs. National Avg

-47%

National avg: 3.7

Avg Per Year

0.7

Over 3 years

FEMA NRI 8-hazard radar — Marengo County

Marengo County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 25, Flood 0, Hurricane 25, Tornado 48, Wildfire 8, Drought 25, Heat Wave 25, Winter Storm 25. Overall composite 23 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 23 composite
Marengo County NRI risk profile FIPS 01091 · composite 23/100 (Low)

The radar plots Marengo 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.

FEMA Records

2

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

01091

AL state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Breakdown of 2 FEMA disaster declarations in Marengo County by incident type.

Hurricane 2

Declaration Types

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Emergency — 1 50.0%

of all 2 declarations

Major Disaster — 1 50.0%

of all 2 declarations

FEMA Declarations Timeline

Disaster declarations per year for Marengo County.

Year Declarations
2024 1
2021 1

Disaster Declarations

All 2 FEMA disaster declarations for Marengo County, Alabama.

DR# Title Type Incident Date
3618 HURRICANE HELENE EM Hurricane 2024-09-26
4573 HURRICANE ZETA DR Hurricane 2020-12-10

Storm Events in Alabama

NOAA severe weather data for Alabama (2015–2025). Storm event data is tracked at the state level.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 9,359 18 130 $56.0M
Hail 1,533 0 0 $5.0K
Flash Flood 1,145 18 9 $12.8M
Tornado 991 60 361 $58.7M
Drought 962 0 0 $0

Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025

FEMA National Risk Index

FEMA's composite risk score combining 18 natural hazard types, social vulnerability, and community resilience for Marengo County.

Overall Risk

Relatively Low

Score: 52.2/100

Expected Annual Loss

Very Low

$10.4M/year

Social Vulnerability

Very High

Community Resilience

Relatively Low

Hazard Risk Breakdown

Risk rating for each of the 18 FEMA NRI natural hazard types in Marengo County.

Strong Wind Relatively Moderate
Tornado Relatively Moderate
Hurricane Relatively Low
Earthquake Relatively Low
Heat Wave Relatively Low
Lightning Relatively Moderate
Drought Relatively Low
Landslide Very Low
Cold Wave Relatively Low
Ice Storm Relatively Low
Wildfire Very Low
Hail Very Low
Winter Weather 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 Alabama

Other Alabama counties with similar disaster declaration counts.

Disaster Preparedness Guides

Frequently Asked Questions

How many natural disasters has Marengo County, Alabama had?
Marengo County, Alabama has received 2 FEMA disaster declarations from 2021 to 2024. Of these, 1 were major disaster declarations.
What is the most common disaster type in Marengo County?
The most common disaster type in Marengo County is Hurricane, with 2 declarations.
How does Marengo County's disaster risk compare to the Alabama average?
Marengo County has 2 disaster declarations, which is 17% lower than the Alabama county average of 2.4 declarations. Compared to the national county average of 3.7, it is 47% lower.
How many major FEMA disaster declarations has Marengo County received?
Marengo County has received 1 major disaster declaration, representing 50% of all 2 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Alabama?
The most common storm types in Alabama include Thunderstorm Wind (9,359 events), Hail (1,533 events), Flash Flood (1,145 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Marengo County?
The most active year for disaster declarations in Marengo County was 2021, with 1 declaration. The county has FEMA disaster data spanning 2021 to 2024.
What is the overall disaster risk level for Marengo County?
Based on FEMA declaration history, Marengo County has a low disaster risk level with 2 total declarations. This county has relatively few disaster declarations compared to the national average.
What is the FEMA National Risk Index score for Marengo County?
According to the FEMA National Risk Index, Marengo County, Alabama has an overall risk score of 52.2 out of 100 (Relatively Low). The county's social vulnerability rating is Very High and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Very Low, representing $10.4M in annualized losses.
Which natural hazard poses the greatest risk to Marengo County?
Based on FEMA NRI data, the highest-risk natural hazard in Marengo County is Strong Wind (risk rating: Relatively Moderate). Other significant hazards include Tornado (Relatively Moderate) and Hurricane (Relatively Low). 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 Marengo County

Marengo County, AL has 2 FEMA disaster declarations on record — a low historical disaster load, 17% below the Alabama county average.

  • Its most common federal declaration type is emergency (1 of 2) — know the hazards most likely here before they happen. Alabama 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.

All federal data sources used on this page
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

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