PlainHazard

If you are in immediate danger, call 911.

The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

Ohio · FEMA + NOAA + National Risk Index

Franklin County, OH

20 FEMA disaster declarations (1974-2020), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Severe Storm.

20
FEMA declarations
14
Major disasters
98
NRI risk · Relatively High
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Franklin County. Its 20 FEMA declarations are 37% above the Ohio county mean and exceed the count for 46% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 2%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 2%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
20
FEMA declarations vs 21 national county avg
1,339
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.

View my watchlist

How does Franklin County compare?

Franklin County vs. all counties in this dataset

FEMA disaster declarations, all-time

20 46th percentile higher than 46% 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

Franklin County's FEMA Risk Index score

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

0/100100/100Ohio avg55/10098.1/100
FEMA National Risk Index composite score vs. the Ohio county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Franklin County is led by Riverine Flooding (about $209.6M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Cold Wave carries the highest National Risk Index rating (Very 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 Franklin County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 1,339 claims and $7.9M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $5.9K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Franklin County's 20 federal records stand 37% 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 98.1/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $331.4M in annualized losses). Social vulnerability reads Relatively Low and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Cold Wave stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 3.6 times per year here, based on 69 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 20 entries for Franklin County, including 14 Major Disaster records, 37% above the Ohio county mean. Across the 46-year span, that works out to 0.4 declarations a year. Severe Storm leads the file with 11 entries. Declaration type records the federal action taken, not every assistance program approved.

64 /100

Historical Activity Index

High historical activity

Franklin 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
14/30

20 OpenFEMA declarations, full ingest window (1.0x national county average)

County Disaster Density High
17/25

20 declarations (1.4x state county average of 15)

Major Disaster Share High
18/25

14 of 20 declarations are major disasters (70%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Franklin County

Historical Declaration Activity

Activity Band

High

vs. Ohio Avg

+37%

State avg: 14.6

vs. National Avg

-3%

National avg: 20.7

Avg Per Year

0.4

Over 46 years

FEMA NRI 8-hazard radar - Franklin County

Franklin County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 8, Tornado 70, Wildfire 8, Drought 25, Heat Wave 70, Winter Storm 92. The simple mean of these eight displayed scores is 49 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 49 8-hazard mean
Franklin County NRI risk profile FIPS 39049 · displayed-hazard mean 49/100
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

20

Above median

Major Disaster share

70%

Major-heavy

NRI risk score

98

Relatively High

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

How often does each hazard strike Franklin 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 Very High an average of 3.6 times per year
Heat Wave Relatively High 4.2 modeled event-days per year
Riverine Flooding Relatively High an average of 3.5 times per year
Hail Relatively High an average of 3.1 times per year
Tornado Relatively High roughly once every 3 years
Winter Weather Relatively High an average of 11 times per year
Strong Wind Relatively High an average of 1.8 times per year
Lightning Relatively High an average of 46 times per year
Earthquake Relatively Moderate roughly once every 790 years
Ice Storm Relatively High roughly once every 1 years
Landslide Relatively Low roughly once every 8 years
Drought Relatively Low 1.6 modeled event-days per year
Hurricane Very Low roughly once every 174 years
Wildfire Very Low roughly once every 31,802 years

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

Disaster Types

Severe Storm 11
Snowstorm 3
Biological 2
Tornado 2
Hurricane 1
Flood 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Franklin County's record, 55% 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 - 14 70.0%

of all 20 declarations

Emergency - 6 30.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2012 2
2009 1
2008 1
2005 3
2004 2
2003 3
1998 1
1992 1
1990 1
1989 1
1978 1
1974 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
4507 COVID-19 PANDEMIC DR Biological 2020-03-31
3457 COVID-19 EM Biological 2020-03-13
4077 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2012-08-20
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
1507 SEVERE STORMS, FLOODING, MUDSLIDES, AND LANDSLIDES DR Severe Storm 2004-01-26
1484 TORNADOES, FLOODING, SEVERE STORMS, AND HIGH WINDS DR Tornado 2003-08-01
1453 SEVERE WINTER STORM AND RECORD/NEAR RECORD SNOW DR Severe Storm 2003-03-14
1444 SEVERE STORMS AND TORNADOES DR Severe Storm 2002-11-18
1227 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 1998-06-30
951 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1992-08-04
870 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-06-06
831 SEVERE STORMS & FLOODING DR Flood 1989-06-10
3055 BLIZZARDS & SNOWSTORMS EM Snowstorm 1978-01-26
421 TORNADOES DR Tornado 1974-04-04

Storm Events in Ohio

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

1,339

Total Paid

$7.9M

Avg Per Claim

$5.9K

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

FEMA National Risk Index

Overall Risk

Relatively High

Score: 98.1/100

Expected Annual Loss

Relatively High

$331.4M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Cold Wave Very High
Heat Wave Relatively High
Riverine Flooding Relatively High
Hail Relatively High
Tornado Relatively High
Winter Weather Relatively High
Strong Wind Relatively High
Lightning Relatively High
Earthquake Relatively Moderate
Ice Storm Relatively High
Landslide Relatively Low
Drought Relatively Low
Hurricane Very Low
Wildfire 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: 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 Franklin County: the model and the federal record do NOT point at the same hazard. Cold Wave carries the highest modeled rating (Very 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

Franklin County's closest FEMA peer: Stanislaus County, CA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Franklin 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 Franklin County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Franklin County's NFIP claims file (1,339 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 Franklin County?
The most common disaster type in Franklin County is Severe Storm, with 11 declarations. Other disaster types include Snowstorm (3), Biological (2), Tornado (2).
How does Franklin County's FEMA declaration record compare with the Ohio average?
FEMA lists 20 declaration records for Franklin County. That is 37% above the Ohio county mean of 14.6. Its count is also 3% 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 Franklin County received?
Franklin County has received 14 major disaster declarations, representing 70% of all 20 disaster declarations.
How many flood insurance claims has Franklin County filed?
Franklin County has 1,339 National Flood Insurance Program (NFIP) claims totaling $7.9M in payments, with an average of $5.9K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Franklin County?
No. In Franklin County, Cold Wave has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $209.6M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Franklin County?
The most active year for disaster declarations in Franklin County was 2003, with 3 declarations. The county has FEMA disaster data spanning 1974 to 2020.
What is the FEMA National Risk Index score for Franklin County?
According to the FEMA National Risk Index, Franklin County, Ohio has an overall risk score of 98.1 out of 100 (Relatively High). The county's social vulnerability rating is Relatively Low and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively High, representing $331.4M in annualized losses.
Which natural hazard poses the greatest risk to Franklin County?
FEMA's NRI data points to Franklin County is Cold Wave (risk rating: Very High). Other significant hazards include Heat Wave (Relatively High) and Riverine Flooding (Relatively High). FEMA's modeled event frequency puts cold wave here at an average of 3.6 times per year, drawn from 69 historical events on record. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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 Franklin County

Franklin County, OH has 20 federal declaration records, 37% more than the Ohio county mean of 15; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 14 of 20 records; the category describes past federal action, not the next likely hazard. Ohio overview
  • The state benchmark and national rank point the same way: this count tops the Ohio mean and the totals for 46% of 3,266 U.S. counties. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. 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.