FEMA Records
12
Low volume
Wisconsin · FEMA + NOAA + National Risk Index
Marathon County, WI
12 FEMA disaster declarations (1965-2026), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Severe Storm.
- 12
- FEMA declarations
- 9
- Major disasters
- 87
- NRI risk · Relatively Moderate
- Severe Storm
- Top hazard
The verdict
Marathon County has a nationally busy FEMA history: 12 declarations, more than 14% of counties in this registry. But the state comparison tempers that reading: the total is 3% below the Wisconsin county mean. FEMA's separate National Risk Index places the county in the riskiest 13%; that score models loss and vulnerability rather than counting declarations.
- Riskiest 13%
- of U.S. counties for FEMA National Risk Index score
- Relatively Moderate
- FEMA National Risk Index rating
- 12
- FEMA declarations vs 21 national county avg
- 69
- 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 55073 · Marathon County 12 declarations · rank 2803/3,266
DECL-MID · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-MID · ACT-HIGH · TYPE-LEAD · VS-ST-BELOW
- DECL-MID 12
- MAJOR-MID 75%
- RANK-LOWER #2,803
- PHOTO-FINISH Johnson
- NRI-MID 87
- ACT-HIGH High
- TYPE-LEAD Severe Storm
- VS-ST-BELOW -3%
Nearest declaration peer: Johnson, KS (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Wisconsin state profile
Marathon County among counties with fewer federal records
FEMA declaration records among Marathon County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Crane · near 12
Crane · near
12 declarations
- Johnson · near 12
Johnson · near
12 declarations
- Marathon · this county 12
Marathon · this county
12 declarations
- Seward · near 12
Seward · near
12 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Marathon County carries 12 FEMA declaration records, ranked 2803 of 3,266 counties in this registry.
Marathon County versus quieter counties in this dataset
Marathon County among lower-declaration counties nationally
FEMA disaster declarations, all-time · Marathon County
12 14th percentile higher than 14% 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
Marathon County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Marathon County is led by Riverine Flooding (about $35.6M Expected Annual Loss, Historical Loss Ratio Relatively High), while Cold Wave 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 Marathon County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 69 paid claims, totaling $359.3K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $5.2K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.
Start with the state benchmark: a Wisconsin county averages 12.3 federal declaration records, while Marathon County has 12. The gap is 3% 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.
FEMA National Risk Index
This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 87.2/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $74.9M in annualized losses). Social vulnerability reads Relatively Low and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 8.8 times per year here, based on 167 historical events on record.
55 /100
Historical Activity Index
High historical activity
Marathon County, WI · 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
9/30
12 OpenFEMA declarations, full ingest window (0.6x national county average)
County Disaster Density Moderate
12/25
12 declarations (1.0x state county average of 12)
Major Disaster Share Very High
19/25
9 of 12 declarations are major disasters (75%)
Hazard Diversity Very High
15/20
6 different disaster types declared in Marathon County
FEMA NRI 8-hazard radar - Marathon 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
75%
Mostly major
NRI risk score
87
Relatively Moderate
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Marathon 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 |
|---|---|---|
| Cold Wave | Relatively High | an average of 8.8 times per year |
| Lightning | Relatively High | an average of 32 times per year |
| Hail | Relatively Moderate | an average of 2.2 times per year |
| Riverine Flooding | Relatively Moderate | roughly once every 1 years |
| Tornado | Relatively Moderate | roughly once every 2 years |
| Winter Weather | Relatively Moderate | an average of 16 times per year |
| Heat Wave | Relatively Low | 1.4 modeled event-days per year |
| Landslide | Very Low | roughly once every 5 years |
| Ice Storm | Relatively Low | roughly once every 5 years |
| Strong Wind | Relatively Moderate | an average of 2.1 times per year |
| Wildfire | Very Low | roughly once every 22,964 years |
| Earthquake | Very Low | roughly once every 3,125 years |
| Hurricane | No Rating | roughly once every 227 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Severe Storm 4
Flood 2
Biological 2
Tornado 2
Hurricane 1
Drought 1
What Severe Storm declarations mean here
Severe Storm is the most frequent declaration type on Marathon County's record, 33% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.
These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.
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 - 9 75.0%
of all 12 declarations
Emergency - 3 25.0%
of all 12 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2026 | 1 | |
| 2020 | 2 | |
| 2011 | 1 | |
| 2005 | 1 | |
| 2004 | 1 | |
| 2002 | 2 | |
| 1993 | 1 | |
| 1976 | 1 | |
| 1973 | 1 | |
| 1965 | 1 | |
Disaster Declarations
How the 12 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 12 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4923 | SEVERE STORMS, TORNADOES, AND FLOODING | DR | Flood | 2026-06-30 |
| 4520 | COVID-19 PANDEMIC | DR | Biological | 2020-04-04 |
| 3454 | COVID-19 | EM | Biological | 2020-03-13 |
| 1944 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2010-10-21 |
| 3249 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-13 |
| 1526 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2004-06-18 |
| 1432 | SEVERE STORMS, TORNADOES AND FLOODING | DR | Tornado | 2002-09-10 |
| 1429 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2002-07-19 |
| 994 | SEVERE STORMS, TORNADOES & FLOODING | DR | Severe Storm | 1993-07-02 |
| 3014 | DROUGHT | EM | Drought | 1976-06-17 |
| 376 | SEVERE STORMS & FLOODING | DR | Flood | 1973-04-27 |
| 192 | TORNADOES, SEVERE STORMS & FLOODING | DR | Tornado | 1965-04-21 |
Storm Events in Wisconsin
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Marathon County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 3,504 | 5 | 23 | $45.0M |
| Hail | 2,620 | 0 | 0 | $57.8M |
| Winter Weather | 1,939 | 43 | 152 | $2.1M |
| Winter Storm | 1,338 | 15 | 86 | $2.3M |
| Flood | 740 | 12 | 4 | $115.6M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
69
Total Paid
$359.3K
Avg Per Claim
$5.2K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Moderate
Score: 87.2/100
Expected Annual Loss
Relatively Moderate
$74.9M/year
Social Vulnerability
Relatively Low
Community Resilience
Very High
Hazard Risk Breakdown
Cold Wave Relatively High
Lightning Relatively High
Hail Relatively Moderate
Riverine Flooding Relatively Moderate
Tornado Relatively Moderate
Winter Weather Relatively Moderate
Heat Wave Relatively Low
Landslide Very Low
Ice Storm Relatively Low
Strong Wind Relatively Moderate
Wildfire Very Low
Earthquake Very Low
Drought No Rating
Hurricane 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: Cold Wave
Cold Wave measures exposure to extreme cold rather than to snow. Its harm is concentrated in health effects, burst infrastructure and energy demand spikes, and it falls hardest where the building stock and the grid were not built with sustained cold in mind.
Worth noting for Marathon County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Relatively High), while the county's declaration history is led by Severe Storm. 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
Marathon County's closest FEMA peer: Jackson County, IL
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Marathon County. Record similarity, not a safety rating.
Similar modeled NRI score
Marathon County: NRI composite 87.2 (Relatively Moderate).
Similar Major-disaster share
Marathon County: 9 of 12 of its declarations are Major.
Closest declaration profiles
Marathon County shows 12 FEMA declarations, led by Severe Storm.
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 Marathon County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Marathon 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: 87.2 (Relatively Moderate).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 12. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Understanding disaster data
Marathon County's NFIP claims file (69 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.
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 Marathon County?
The most common disaster type in Marathon County is Severe Storm, with 4 declarations. Other disaster types include Flood (2), Biological (2), Tornado (2).
How does Marathon County's FEMA declaration record compare with the Wisconsin average?
The typical Wisconsin county has 12.3 FEMA declaration records; Marathon County has 12, or 3% fewer. Against the national county mean of 20.7, this county's total is 42% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Marathon County received?
Marathon County has received 9 major disaster declarations, representing 75% of all 12 disaster declarations.
How many flood insurance claims has Marathon County filed?
Marathon County has 69 National Flood Insurance Program (NFIP) claims totaling $359.3K in payments, with an average of $5.2K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Marathon County?
No. In Marathon County, Cold Wave has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $35.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Marathon County?
The most active year for disaster declarations in Marathon County was 2002, with 2 declarations. The county has FEMA disaster data spanning 1965 to 2026.
What is the FEMA National Risk Index score for Marathon County?
According to the FEMA National Risk Index, Marathon County, Wisconsin has an overall risk score of 87.2 out of 100 (Relatively Moderate). On social vulnerability the county rates Relatively Low; on community resilience, Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $74.9M in annualized losses.
Which natural hazard poses the greatest risk to Marathon County?
FEMA's NRI data points to Marathon County as of the latest release is Cold Wave (risk rating: Relatively High). Other significant hazards include Lightning (Relatively High) and Hail (Relatively Moderate). FEMA's modeled event frequency puts cold wave here at an average of 8.8 times per year, drawn from 167 historical events on record. The underlying methodology weighs historical event frequency against 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 Marathon County · vintage 2026-08-25 · Methodology · Wisconsin profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events