FEMA Records
15
Below median
Ohio · FEMA + NOAA + National Risk Index
Delaware County, OH
15 FEMA disaster declarations (1965-2024), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.
- 15
- FEMA declarations
- 9
- Major disasters
- 79
- NRI risk · Relatively Low
- Severe Storm
- Top hazard
The verdict
Two federal records point in the busier direction for Delaware County. Its 15 FEMA declarations are 2% above the Ohio county mean and exceed the count for 23% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 21%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Riskiest 21%
- of U.S. counties for FEMA National Risk Index score
- Relatively Low
- FEMA National Risk Index rating
- 15
- FEMA declarations vs 21 national county avg
- 101
- 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 39041 · Delaware County 15 declarations · rank 2492/3,266
DECL-MID · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE
- DECL-MID 15
- MAJOR-MID 60%
- RANK-LOWER #2,492
- PHOTO-FINISH Polk
- NRI-LOW 79
- ACT-HIGH High
- TYPE-LEAD Severe Storm
- VS-ST-ABOVE +2%
Nearest declaration peer: Polk, OR (0 declaration gap)
FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Ohio state profile
Delaware County among counties with fewer federal records
FEMA declaration records among Delaware County and nearest peers by total count
- Los Angeles · largest
Los Angeles · largest
88 declarations
- Delaware · this county 15
Delaware · this county
15 declarations
- Flathead · near 15
Flathead · near
15 declarations
- Murray · near 15
Murray · near
15 declarations
- Polk · near 15
Polk · near
15 declarations
- Ujelang · smallest 1
Ujelang · smallest
1 declarations
What this shows Delaware County carries 15 FEMA declaration records, ranked 2492 of 3,266 counties in this registry.
Delaware County versus quieter counties in this dataset
Delaware County among lower-declaration counties nationally
FEMA disaster declarations, all-time · Delaware County
15 23rd percentile higher than 23% 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
Delaware County's FEMA Risk Index score
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Delaware County is led by Riverine Flooding (about $49.3M Expected Annual Loss, Historical Loss Ratio Relatively High), while Hail 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 Delaware County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 101 paid claims, totaling $995.2K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $9.9K 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. Delaware County's 15 federal records stand 2% above the Ohio county mean of 14.6. 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 78.8/100 (Relatively Low). Expected Annual Loss is rated Relatively Moderate (roughly $69.4M in annualized losses). Social vulnerability reads Very Low and community resilience Very High, both critical modifiers of realized harm here. Among the 18 modeled hazards, Hail carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 3.3 times per year here, based on 124 historical events on record.
52 /100
Historical Activity Index
High historical activity
Delaware County, OH · 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
11/30
15 OpenFEMA declarations, full ingest window (0.7x national county average)
County Disaster Density High
13/25
15 declarations (1.0x state county average of 15)
Major Disaster Share High
15/25
9 of 15 declarations are major disasters (60%)
Hazard Diversity High
13/20
5 different disaster types declared in Delaware County
FEMA NRI 8-hazard radar - Delaware 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
60%
Major-heavy
NRI risk score
79
Relatively Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Delaware 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 |
|---|---|---|
| Hail | Relatively Moderate | an average of 3.3 times per year |
| Winter Weather | Relatively High | an average of 12 times per year |
| Ice Storm | Relatively High | roughly once every 2 years |
| Riverine Flooding | Relatively Moderate | an average of 1.7 times per year |
| Tornado | Relatively Moderate | roughly once every 4 years |
| Lightning | Relatively Moderate | an average of 44 times per year |
| Strong Wind | Relatively Moderate | an average of 1.9 times per year |
| Heat Wave | Relatively Low | 3.6 modeled event-days per year |
| Earthquake | Relatively Low | roughly once every 807 years |
| Landslide | Very Low | roughly once every 11 years |
| Cold Wave | Relatively Low | an average of 4.5 times per year |
| Hurricane | Very Low | roughly once every 174 years |
| Wildfire | Very Low | roughly once every 15,337 years |
| Drought | Very Low | 0.1 modeled event-days per year |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Severe Storm 6
Tornado 3
Snowstorm 3
Biological 2
Hurricane 1
What Severe Storm declarations mean here
Severe Storm is the most frequent declaration type on Delaware County's record, 40% 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 60.0%
of all 15 declarations
Emergency - 6 40.0%
of all 15 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2024 | 1 | |
| 2020 | 2 | |
| 2012 | 1 | |
| 2009 | 1 | |
| 2008 | 1 | |
| 2005 | 3 | |
| 2004 | 2 | |
| 2003 | 1 | |
| 1978 | 1 | |
| 1974 | 1 | |
| 1965 | 1 | |
Disaster Declarations
How the 15 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 15 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4777 | TORNADOES | DR | Tornado | 2024-05-02 |
| 4507 | COVID-19 PANDEMIC | DR | Biological | 2020-03-31 |
| 3457 | COVID-19 | EM | Biological | 2020-03-13 |
| 3346 | SEVERE STORMS | EM | Severe Storm | 2012-06-30 |
| 1805 | SEVERE WIND STORM ASSOCIATED WITH TROPICAL DEPRESSION IKE | DR | Severe Storm | 2008-10-24 |
| 3286 | RECORD SNOW AND NEAR RECORD SNOW | EM | Snowstorm | 2008-04-24 |
| 3250 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-13 |
| 1580 | SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES | DR | Severe Storm | 2005-02-15 |
| 3198 | SNOW | EM | Snowstorm | 2005-01-11 |
| 1556 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2004-09-19 |
| 1519 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2004-06-03 |
| 1453 | SEVERE WINTER STORM AND RECORD/NEAR RECORD SNOW | DR | Severe Storm | 2003-03-14 |
| 3055 | BLIZZARDS & SNOWSTORMS | EM | Snowstorm | 1978-01-26 |
| 421 | TORNADOES | DR | Tornado | 1974-04-04 |
| 191 | TORNADOES & SEVERE STORMS | DR | Tornado | 1965-04-14 |
Storm Events in Ohio
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Delaware County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 6,938 | 6 | 39 | $60.4M |
| Winter Weather | 2,101 | 7 | 42 | $3.3M |
| Hail | 1,749 | 0 | 0 | $673.5K |
| Flood | 1,607 | 9 | 0 | $84.5M |
| Flash Flood | 1,089 | 9 | 7 | $112.2M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
101
Total Paid
$995.2K
Avg Per Claim
$9.9K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 78.8/100
Expected Annual Loss
Relatively Moderate
$69.4M/year
Social Vulnerability
Very Low
Community Resilience
Very High
Hazard Risk Breakdown
Hail Relatively Moderate
Winter Weather Relatively High
Ice Storm Relatively High
Riverine Flooding Relatively Moderate
Tornado Relatively Moderate
Lightning Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Earthquake Relatively Low
Landslide Very Low
Cold Wave Relatively Low
Hurricane Very Low
Wildfire Very Low
Drought 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: Hail
Hail is among the most expensive hazards in the model relative to how little it threatens life. It concentrates on roofs, vehicles and crops, and a single severe storm can generate an insurance loss across a metropolitan area without a single injury.
For Delaware County the two measures on this page point the same way: Hail is the county's highest-rated modeled hazard (Relatively Moderate), and Severe Storm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.
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
Delaware County's closest FEMA peer: Dewey County, SD
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Delaware County. Record similarity, not a safety rating.
Similar modeled NRI score
Delaware County: NRI composite 78.8 (Relatively Low).
Similar Major-disaster share
Delaware County: 9 of 15 of its declarations are Major.
Closest declaration profiles
Delaware County shows 15 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 Delaware County - capture-dated entries only.
Compare beyond this state
Nationwide peers by NRI score & FEMA declaration volume
Two PlainHazard-derived comparison paths for Delaware 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: 78.8 (Relatively Low).
Similar declaration volume
Nearest out-of-state counties by FEMA declaration count. This county: 15. NRI peers are excluded so the two link sets stay distinct.
Further reading for this county
Understanding disaster data
Delaware County's NFIP claims file (101 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 Delaware County?
The most common disaster type in Delaware County is Severe Storm, with 6 declarations. Other disaster types include Tornado (3), Snowstorm (3), Biological (2).
How does Delaware County's FEMA declaration record compare with the Ohio average?
FEMA lists 15 declaration records for Delaware County. That is 2% above the Ohio county mean of 14.6. Its count is also 28% 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 Delaware County received?
Delaware County has received 9 major disaster declarations, representing 60% of all 15 disaster declarations.
How many flood insurance claims has Delaware County filed?
Delaware County has 101 National Flood Insurance Program (NFIP) claims totaling $995.2K in payments, with an average of $9.9K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Delaware County?
No. In Delaware County, Hail has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $49.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Delaware County?
The most active year for disaster declarations in Delaware County was 2005, with 3 declarations. The county has FEMA disaster data spanning 1965 to 2024.
What is the FEMA National Risk Index score for Delaware County?
According to the FEMA National Risk Index, Delaware County, Ohio has an overall risk score of 78.8 out of 100 (Relatively Low). On social vulnerability the county rates Very Low; on community resilience, Very High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $69.4M in annualized losses.
Which natural hazard poses the greatest risk to Delaware County?
The top hazard flagged by FEMA's NRI for Delaware County is Hail (risk rating: Relatively Moderate). Other significant hazards include Winter Weather (Relatively High) and Ice Storm (Relatively High). FEMA's modeled event frequency puts hail here at an average of 3.3 times per year, drawn from 124 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 Delaware County · vintage 2026-08-25 · Methodology · Ohio profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events