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Michigan · FEMA + NOAA + National Risk Index

Genesee County, MI

14 FEMA disaster declarations (1975-2020), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Flood.

14
FEMA declarations
8
Major disasters
92
NRI risk · Relatively Moderate
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Genesee County. Its 14 FEMA declarations are 40% above the Michigan county mean and exceed the count for 20% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 8%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 8%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
14
FEMA declarations vs 21 national county avg
467
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.

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How does Genesee County compare?

Genesee County vs. all counties in this dataset

FEMA disaster declarations, all-time

14 20th percentile higher than 20% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

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 · 2026-08-03

Genesee County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Michigan county average

0/100100/100Michigan avg50/10092.2/100
FEMA National Risk Index composite score vs. the Michigan county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Genesee County is led by Riverine Flooding (about $50.9M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Tornado carries the highest National Risk Index rating (Relatively High). 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 Genesee County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 467 paid claims, totaling $3.3M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $7.1K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

The declaration register points in the busier direction. Genesee County's 14 federal records stand 40% above the Michigan county mean of 10.0. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 92.2/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $113.1M in annualized losses). Social vulnerability reads Relatively Moderate and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Tornado stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 3 years here, based on 39 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 14 entries for Genesee County, including 8 Major Disaster records, 40% above the Michigan county mean. Across the 45-year span, that works out to 0.3 declarations a year. Flood leads the file with 4 entries. Declaration type records the federal action taken, not every assistance program approved.

60 /100

Historical Activity Index

High historical activity

Genesee County, MI · 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
10/30

14 OpenFEMA declarations, full ingest window (0.7x national county average)

County Disaster Density High
18/25

14 declarations (1.4x state county average of 10)

Major Disaster Share High
14/25

8 of 14 declarations are major disasters (57%)

Hazard Diversity Very High
18/20

7 different disaster types declared in Genesee County

Historical Declaration Activity

Activity Band

High

vs. Michigan Avg

+40%

State avg: 10.0

vs. National Avg

-32%

National avg: 20.7

Avg Per Year

0.3

Over 45 years

FEMA NRI 8-hazard radar - Genesee County

Genesee County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 8, Tornado 70, Wildfire 8, Drought 0, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 35 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 35 8-hazard mean
Genesee County NRI risk profile FIPS 26049 · displayed-hazard mean 35/100
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.

FEMA Records

14

Low volume

Major Disaster share

57%

Major-heavy

NRI risk score

92

Relatively Moderate

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Genesee 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
Tornado Relatively High roughly once every 3 years
Cold Wave Relatively High an average of 2.8 times per year
Strong Wind Relatively High an average of 5.6 times per year
Riverine Flooding Relatively Moderate roughly once every 1 years
Hail Relatively Moderate an average of 2.8 times per year
Ice Storm Relatively High an average of 1.2 times per year
Lightning Relatively High an average of 33 times per year
Heat Wave Relatively Moderate 2.6 modeled event-days per year
Earthquake Relatively Low roughly once every 1,466 years
Winter Weather Relatively Low an average of 11 times per year
Landslide Very Low roughly once every 9 years
Hurricane Very Low roughly once every 103 years
Wildfire Very Low roughly once every 37,343 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Flood 4
Severe Storm 3
Biological 2
Snowstorm 2
Toxic Substances 1
Hurricane 1
Other 1

What Flood declarations mean here

Flood is the most frequent declaration type on Genesee County's record, 29% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

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).

Major Disaster - 8 57.1%

of all 14 declarations

Emergency - 6 42.9%

of all 14 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2016 1
2005 1
2004 1
2003 1
2001 1
1997 1
1986 1
1985 1
1978 1
1976 1
1975 2

Disaster Declarations

How the 14 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 14 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4494 COVID-19 PANDEMIC DR Biological 2020-03-27
3455 COVID-19 EM Biological 2020-03-13
3375 CONTAMINATED WATER EM Toxic Substances 2016-01-16
3225 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
1527 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2004-06-30
3189 POWER OUTAGE EM Other 2003-09-23
3160 SNOW EM Snowstorm 2001-01-10
1181 SEVERE STORMS, TORNADOES,AND FLOODING DR Severe Storm 1997-07-11
774 SEVERE STORMS & FLOODING DR Flood 1986-09-18
744 SEVERE STORMS AND FLOODING DR Flood 1985-09-18
3057 BLIZZARDS & SNOWSTORMS EM Snowstorm 1978-01-27
495 SEVERE STORMS, TORNADOES, ICING & FLOODING DR Severe Storm 1976-03-19
486 SEVERE STORMS, HIGH WINDS & FLOODING DR Flood 1975-09-30
465 SEVERE STORMS, HIGH WINDS & FLOODING DR Flood 1975-04-26

Storm Events in Michigan

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Genesee County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,010 10 18 $173.8M
Winter Storm 1,486 3 11 $41.8M
Winter Weather 1,254 21 38 $892.0K
Hail 962 0 0 $77.1M
High Wind 389 3 2 $668.9M

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

NFIP Flood Insurance Claims

Total Claims

467

Total Paid

$3.3M

Avg Per Claim

$7.1K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 92.2/100

Expected Annual Loss

Relatively Moderate

$113.1M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

Tornado Relatively High
Cold Wave Relatively High
Strong Wind Relatively High
Riverine Flooding Relatively Moderate
Hail Relatively Moderate
Ice Storm Relatively High
Lightning Relatively High
Heat Wave Relatively Moderate
Earthquake Relatively Low
Winter Weather Relatively Low
Landslide Very Low
Hurricane Very Low
Wildfire Very Low
Drought No Rating

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: Tornado

Tornado exposure is the most spatially concentrated in the model: total destruction along a narrow corridor with intact property either side. County-level averages therefore understate severity badly for anyone actually in the path, and overstate it for everyone else.

Worth noting for Genesee County: the model and the federal record do NOT point at the same hazard. Tornado carries the highest modeled rating (Relatively High), while the county's declaration history is led by Flood. 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

Genesee County's closest FEMA peer: Ascension Parish, LA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Genesee County. Record similarity, not a safety rating.

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 Genesee County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Genesee County's NFIP claims file (467 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Genesee County?
The most common disaster type in Genesee County is Flood, with 4 declarations. Other disaster types include Severe Storm (3), Biological (2), Snowstorm (2).
How does Genesee County's FEMA declaration record compare with the Michigan average?
FEMA lists 14 declaration records for Genesee County. That is 40% above the Michigan county mean of 10.0. Its count is also 32% below the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Genesee County received?
Genesee County has received 8 major disaster declarations, representing 57% of all 14 disaster declarations.
How many flood insurance claims has Genesee County filed?
Genesee County has 467 National Flood Insurance Program (NFIP) claims totaling $3.3M in payments, with an average of $7.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Genesee County?
No. In Genesee County, Tornado has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $50.9M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Genesee County?
The most active year for disaster declarations in Genesee County was 1975, with 2 declarations. The county has FEMA disaster data spanning 1975 to 2020.
What is the FEMA National Risk Index score for Genesee County?
According to the FEMA National Risk Index, Genesee County, Michigan has an overall risk score of 92.2 out of 100 (Relatively Moderate). On social vulnerability the county rates Relatively Moderate; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $113.1M in annualized losses.
Which natural hazard poses the greatest risk to Genesee County?
The top hazard flagged by FEMA's NRI for Genesee County as of the latest release is Tornado (risk rating: Relatively High). Other significant hazards include Cold Wave (Relatively High) and Strong Wind (Relatively High). FEMA's modeled event frequency puts tornado here at roughly once every 3 years, drawn from 39 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.

What this means for Genesee County

Genesee County, MI has 14 federal declaration records, 40% more than the Michigan county mean of 10; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 8 of 14 records; the category describes past federal action, not the next likely hazard. Michigan overview
  • The state benchmark and national rank point the same way: this count tops the Michigan mean and the totals for 20% of 3,266 U.S. counties. Most-disaster rankings
  • Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. Disaster-data guide

An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.

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

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. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.