FEMA Records
20
Above median
Alabama · FEMA + NOAA + National Risk Index
Marengo County, AL
20 FEMA disaster declarations (1977-2024), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Hurricane.
- 20
- FEMA declarations
- 10
- Major disasters
- 52
- NRI risk · Relatively Low
- Hurricane
- Top hazard
The verdict
Marengo County has a nationally busy FEMA history: 20 declarations, more than 46% of counties in this registry. But the state comparison tempers that reading: the total is 23% below the Alabama county mean. FEMA's separate National Risk Index places the county in the riskiest 48%; that score models loss and vulnerability rather than counting declarations.
- Riskiest 48%
- of U.S. counties for FEMA National Risk Index score
- Relatively Low
- FEMA National Risk Index rating
- 20
- FEMA declarations vs 21 national county avg
- 40
- NFIP flood insurance claims filed
FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.
FEMA OpenFEMA declaration desk
County FIPS 01091 · Marengo County 20 declarations · rank 1739/3,266
DECL-HEAVY · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-BELOW
- DECL-HEAVY 20
- MAJOR-MID 50%
- RANK-LOWER #1,739
- PHOTO-FINISH Monona
- NRI-LOW 52
- ACT-HIGH High
- TYPE-LEAD Hurricane
- VS-ST-BELOW -23%
Nearest declaration peer: Monona, IA (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Alabama state profile
Marengo County in the declaration-count neighbourhood
FEMA declaration records among Marengo County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Cleveland · near 20
Cleveland · near
20 declarations
- Marengo · this county 20
Marengo · this county
20 declarations
- Monona · near 20
Monona · near
20 declarations
- Tallapoosa · near 20
Tallapoosa · near
20 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Marengo County carries 20 FEMA declaration records, ranked 1739 of 3,266 counties in this registry.
How Marengo County's FEMA declaration count compares nationally
Marengo County vs. all counties in this dataset
FEMA disaster declarations, all-time · Marengo County
20 46th percentile higher than 46% of 3,266 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 · 2026-08-25
Marengo County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Marengo County is led by Riverine Flooding (about $4.1M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Strong Wind carries the highest National Risk Index rating (Relatively Moderate). EAL and risk score use different inputs; they need not agree.
Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.
What does Marengo County's hazard record show?
FEMA National Risk Index
This county carries a high composite score on FEMA's National Risk Index, 52.2/100, rated Relatively Low. Its Expected Annual Loss rating is Very Low (roughly $10.4M in annualized losses), and a Very High social-vulnerability profile combined with Relatively Low community resilience shapes how much of that raw exposure becomes realized harm. Among the 18 modeled hazards, Strong Wind carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 1.7 times per year here, based on 64 historical events on record.
Reading the federal records together
This county has a small entry in FEMA's NFIP paid-claims table: 40 claims and $186.5K paid in total. PlainHazard calls 1-49 claims a light registry record, a label for this dataset rather than a finding that flood exposure is low. A short claims history can also reflect insurance take-up, the period covered, or losses that were never insured.
Start with the state benchmark: a Alabama county averages 25.8 federal declaration records, while Marengo County has 20. The gap is 23% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.
52 /100
Historical Activity Index
High historical activity
Marengo County, AL · PlainHazard-derived composite from federal records
This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology
FEMA Declarations (1953–present) Moderate
14/30
20 OpenFEMA declarations, full ingest window (1.0x national county average)
County Disaster Density Moderate
10/25
20 declarations (0.8x state county average of 26)
Major Disaster Share High
13/25
10 of 20 declarations are major disasters (50%)
Hazard Diversity Very High
15/20
6 different disaster types declared in Marengo County
FEMA NRI 8-hazard radar - Marengo County
How to read this radar
Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.
Major Disaster share
50%
Major-heavy
NRI risk score
52
Relatively Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Marengo County?
FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.
| Hazard | NRI Risk Rating | Recurrence |
|---|---|---|
| Strong Wind | Relatively Moderate | an average of 1.7 times per year |
| Tornado | Relatively Moderate | roughly once every 1 years |
| Hurricane | Relatively Low | roughly once every 9 years |
| Earthquake | Relatively Low | roughly once every 407 years |
| Heat Wave | Relatively Low | 10 modeled event-days per year |
| Lightning | Relatively Moderate | an average of 70 times per year |
| Drought | Relatively Low | 18 modeled event-days per year |
| Riverine Flooding | Relatively Low | roughly once every 2 years |
| Landslide | Very Low | roughly once every 3 years |
| Cold Wave | Relatively Low | roughly once every 2 years |
| Ice Storm | Relatively Low | roughly once every 2 years |
| Wildfire | Very Low | roughly once every 2,144 years |
| Hail | Very Low | an average of 2.1 times per year |
| Winter Weather | Very Low | an average of 1.7 times per year |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Hurricane 11
Severe Storm 4
Biological 2
Snowstorm 1
Flood 1
Drought 1
What Hurricane declarations mean here
Hurricane is the most frequent declaration type on Marengo County's federal record, 55% of its declarations. Atlantic tropical systems run on a defined season, 1 June to 30 November, with most activity concentrated between August and October; Pacific and territorial basins run on their own calendars. A single named storm routinely produces one declaration number covering a long corridor of counties at once, well inland as well as on the coast, which is why an affected county's count can jump by several in one year without several separate events having occurred.
One practical distinction matters when reading these records: a tropical declaration usually bundles wind, storm surge and inland rainfall flooding under a single incident, but the insurance behind them is split. Wind damage falls to property insurers, while flood and surge damage is covered only under a separate National Flood Insurance Program policy. That is why a county can show heavy declaration activity and a comparatively small NFIP claims record, or the reverse.
Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.
Declaration Types
What DR / EM / FM mean
FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).
Emergency - 10 50.0%
of all 20 declarations
Major Disaster - 10 50.0%
of all 20 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2024 | 1 | |
| 2021 | 1 | |
| 2020 | 3 | |
| 2018 | 1 | |
| 2017 | 1 | |
| 2011 | 2 | |
| 2009 | 1 | |
| 2008 | 1 | |
| 2005 | 3 | |
| 2004 | 1 | |
| 1993 | 1 | |
| 1990 | 1 | |
| 1979 | 2 | |
| 1977 | 1 | |
Disaster Declarations
How the 20 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 20 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 3618 | HURRICANE HELENE | EM | Hurricane | 2024-09-26 |
| 4573 | HURRICANE ZETA | DR | Hurricane | 2020-12-10 |
| 3545 | HURRICANE SALLY | EM | Hurricane | 2020-09-14 |
| 4503 | COVID-19 PANDEMIC | DR | Biological | 2020-03-29 |
| 3472 | COVID-19 | EM | Biological | 2020-03-13 |
| 3394 | HURRICANE NATE | EM | Hurricane | 2017-10-08 |
| 3389 | HURRICANE IRMA | EM | Hurricane | 2017-09-11 |
| 1971 | SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING | DR | Severe Storm | 2011-04-28 |
| 3319 | SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS | EM | Severe Storm | 2011-04-27 |
| 1835 | SEVERE STORMS, FLOODING, TORNADOES & STRAIGHT-LINE | DR | Severe Storm | 2009-04-28 |
| 3292 | HURRICANE GUSTAV | EM | Hurricane | 2008-08-30 |
| 3237 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-10 |
| 1605 | HURRICANE KATRINA | DR | Hurricane | 2005-08-29 |
| 1593 | HURRICANE DENNIS | DR | Hurricane | 2005-07-10 |
| 1549 | HURRICANE IVAN | DR | Hurricane | 2004-09-15 |
| 3096 | SEVERE SNOWFALL, WINTER STORM | EM | Snowstorm | 1993-03-15 |
| 856 | SEVERE STORMS, TORNADOES & FLOODING | DR | Severe Storm | 1990-02-17 |
| 598 | HURRICANE FREDERIC | DR | Hurricane | 1979-09-13 |
| 578 | STORMS, WIND, FLOODING | DR | Flood | 1979-04-18 |
| 3045 | DROUGHT | EM | Drought | 1977-07-20 |
Storm Events in Alabama
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Marengo County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 7,827 | 16 | 115 | $51.7M |
| Hail | 1,349 | 0 | 0 | $5.0K |
| Flash Flood | 1,047 | 17 | 7 | $12.8M |
| Tornado | 896 | 57 | 343 | $49.7M |
| Drought | 857 | 0 | 0 | $0 |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
40
Total Paid
$186.5K
Avg Per Claim
$4.7K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
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
Strong Wind Relatively Moderate
Tornado Relatively Moderate
Hurricane Relatively Low
Earthquake Relatively Low
Heat Wave Relatively Low
Lightning Relatively Moderate
Drought Relatively Low
Riverine Flooding 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) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri
The model's sharpest exposure here: Strong Wind
Strong Wind covers damaging non-thunderstorm, non-tornadic wind, the kind produced by steep pressure gradients and downslope events. It is a broad, frequent, low-drama hazard: roofs, signage, power lines and high-profile vehicles, spread across a wide area rather than concentrated on a path.
Worth noting for Marengo County: the model and the federal record do NOT point at the same hazard. Strong Wind carries the highest modeled rating (Relatively Moderate), while the county's declaration history is led by Hurricane. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.
National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.
Data-matched county comparisons
Marengo County's closest FEMA peer: Howard County, TX
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Marengo County. Record similarity, not a safety rating.
Closest declaration profiles
Marengo County shows 20 FEMA declarations, led by Hurricane.
Similar Major-disaster share
Marengo County: 10 of 20 of its declarations are Major.
Similar modeled NRI score
Marengo County: NRI composite 52.2 (Relatively Low).
How these peers are chosen
Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.
Retained FEMA snapshot feed for Marengo County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Marengo County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.
Similar NRI composite
Nearest out-of-state counties by FEMA NRI score. This county: 52.2 (Relatively Low).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 20. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Most disaster-prone counties
With 20 FEMA declarations, Marengo County sits in the high-volume declaration band - see how that count ranks against other U.S. counties.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Frequently Asked Questions
What is the most common disaster type in Marengo County?
The most common disaster type in Marengo County is Hurricane, with 11 declarations. Other disaster types include Severe Storm (4), Biological (2), Snowstorm (1).
How does Marengo County's FEMA declaration record compare with the Alabama average?
The typical Alabama county has 25.8 FEMA declaration records; Marengo County has 20, or 23% fewer. Against the national county mean of 20.7, this county's total is 3% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Marengo County received?
Marengo County has received 10 major disaster declarations, representing 50% of all 20 disaster declarations.
How many flood insurance claims has Marengo County filed?
Marengo County has 40 National Flood Insurance Program (NFIP) claims totaling $186.5K in payments, with an average of $4.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Marengo County?
No. In Marengo County, Strong Wind has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $4.1M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Marengo County?
The most active year for disaster declarations in Marengo County was 2005, with 3 declarations. The county has FEMA disaster data spanning 1977 to 2024.
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). Social vulnerability here rates Very High, while community resilience comes in at 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?
FEMA's NRI data points to Marengo County as of the latest release is Strong Wind (risk rating: Relatively Moderate). Other significant hazards include Tornado (Relatively Moderate) and Hurricane (Relatively Low). FEMA's modeled event frequency puts strong wind here at an average of 1.7 times per year, drawn from 64 historical events on record. 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.
Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.
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.
FEMA OpenFEMA declarations + NRI for Marengo County · vintage 2026-08-25 · Methodology · Alabama profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events