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Ohio · FEMA + NOAA + National Risk Index

Columbiana County, OH

18 FEMA disaster declarations (1977-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

18
FEMA declarations
13
Major disasters
69
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Two federal records point in the busier direction for Columbiana County. Its 18 FEMA declarations are 23% above the Ohio county mean and exceed the count for 37% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 31%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 31%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
18
FEMA declarations vs 21 national county avg
112
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 Columbiana County compare?

Columbiana County vs. all counties in this dataset

FEMA disaster declarations, all-time

18 37th percentile higher than 37% 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

Columbiana County's FEMA Risk Index score

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

0/100100/100Ohio avg55/10069.1/100
FEMA National Risk Index composite score vs. the Ohio county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Columbiana County is led by Riverine Flooding (about $19.4M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), 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 Columbiana County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 112 paid claims, totaling $857.3K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $7.7K 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. Columbiana County's 18 federal records stand 23% 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 carries a high composite score on FEMA's National Risk Index, 69.1/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $25.1M in annualized losses), and a Relatively Moderate social-vulnerability profile combined with Relatively High community resilience shapes how much of that raw exposure becomes realized harm. 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 4.5 times per year here, based on 169 historical events on record.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 18 entries for Columbiana County, including 13 Major Disaster records, 23% above the Ohio county mean. Across the 43-year span, that works out to 0.4 declarations a year. Severe Storm leads the file with 7 entries. Declaration type records the federal action taken, not every assistance program approved.

61 /100

Historical Activity Index

High historical activity

Columbiana 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
13/30

18 OpenFEMA declarations, full ingest window (0.9x national county average)

County Disaster Density High
15/25

18 declarations (1.2x state county average of 15)

Major Disaster Share High
18/25

13 of 18 declarations are major disasters (72%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Columbiana County

Historical Declaration Activity

Activity Band

High

vs. Ohio Avg

+23%

State avg: 14.6

vs. National Avg

-13%

National avg: 20.7

Avg Per Year

0.4

Over 43 years

FEMA NRI 8-hazard radar - Columbiana County

Columbiana County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 48, Hurricane 25, Tornado 48, Wildfire 8, Drought 0, Heat Wave 25, Winter Storm 48. The simple mean of these eight displayed scores is 26 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 26 8-hazard mean
Columbiana County NRI risk profile FIPS 39029 · displayed-hazard mean 26/100
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

18

Below median

Major Disaster share

72%

Major-heavy

NRI risk score

69

Relatively Low

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

How often does each hazard strike Columbiana 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 4.5 times per year
Riverine Flooding Relatively Moderate an average of 1.9 times per year
Landslide Relatively Low roughly once every 2 years
Lightning Relatively Moderate an average of 40 times per year
Tornado Relatively Moderate roughly once every 4 years
Ice Storm Relatively Moderate roughly once every 2 years
Winter Weather Relatively Moderate an average of 10 times per year
Heat Wave Relatively Low 1.8 modeled event-days per year
Hurricane Relatively Low roughly once every 62 years
Strong Wind Relatively Moderate an average of 2.6 times per year
Wildfire Very Low roughly once every 14,972 years
Earthquake Very Low roughly once every 1,553 years
Cold Wave Very Low an average of 3.1 times 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 7
Tornado 3
Flood 3
Biological 2
Snowstorm 2
Hurricane 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Columbiana County's record, 39% 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 - 13 72.2%

of all 18 declarations

Emergency - 5 27.8%

of all 18 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2019 1
2018 1
2012 1
2005 2
2004 2
2003 2
1996 1
1992 1
1990 1
1985 1
1980 1
1978 1
1977 1

Disaster Declarations

How the 18 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 18 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
4447 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDE DR Tornado 2019-06-18
4360 SEVERE STORMS, LANDSLIDES, AND MUDSLIDES DR Flood 2018-04-17
3346 SEVERE STORMS EM Severe Storm 2012-06-30
3250 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1580 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2005-02-15
1556 SEVERE STORMS AND FLOODING DR Severe Storm 2004-09-19
1519 SEVERE STORMS AND FLOODING DR Severe Storm 2004-06-03
1484 TORNADOES, FLOODING, SEVERE STORMS, AND HIGH WINDS DR Tornado 2003-08-01
1478 SEVERE STORMS AND FLOODING DR Severe Storm 2003-07-15
1097 SEVERE STORMS AND FLOODING DR Flood 1996-01-27
951 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1992-08-04
870 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-06-06
738 SEVERE STORMS & TORNADOES DR Tornado 1985-06-03
630 SEVERE STORMS & FLOODING DR Flood 1980-08-23
3055 BLIZZARDS & SNOWSTORMS EM Snowstorm 1978-01-26
3029 SNOWSTORMS EM Snowstorm 1977-02-02

Storm Events in Ohio

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

112

Total Paid

$857.3K

Avg Per Claim

$7.7K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 69.1/100

Expected Annual Loss

Relatively Low

$25.1M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

Hail Relatively Moderate
Riverine Flooding Relatively Moderate
Landslide Relatively Low
Lightning Relatively Moderate
Tornado Relatively Moderate
Ice Storm Relatively Moderate
Winter Weather Relatively Moderate
Heat Wave Relatively Low
Hurricane Relatively Low
Strong Wind Relatively Moderate
Wildfire Very Low
Earthquake Very Low
Cold Wave 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: 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 Columbiana 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

Columbiana County's closest FEMA peer: Independence County, AR

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

Further reading for this county

Understanding disaster data

Columbiana County's NFIP claims file (112 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 Columbiana County?
The most common disaster type in Columbiana County is Severe Storm, with 7 declarations. Other disaster types include Tornado (3), Flood (3), Biological (2).
How does Columbiana County's FEMA declaration record compare with the Ohio average?
FEMA lists 18 declaration records for Columbiana County. That is 23% above the Ohio county mean of 14.6. Its count is also 13% 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 Columbiana County received?
Columbiana County has received 13 major disaster declarations, representing 72% of all 18 disaster declarations.
How many flood insurance claims has Columbiana County filed?
Columbiana County has 112 National Flood Insurance Program (NFIP) claims totaling $857.3K in payments, with an average of $7.7K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Columbiana County?
No. In Columbiana County, Hail has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $19.4M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Columbiana County?
The most active year for disaster declarations in Columbiana County was 2003, with 2 declarations. The county has FEMA disaster data spanning 1977 to 2020.
What is the FEMA National Risk Index score for Columbiana County?
According to the FEMA National Risk Index, Columbiana County, Ohio has an overall risk score of 69.1 out of 100 (Relatively Low). Social vulnerability here rates Relatively Moderate, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $25.1M in annualized losses.
Which natural hazard poses the greatest risk to Columbiana County?
Based on FEMA NRI data, the highest-risk natural hazard in Columbiana County as of the latest release is Hail (risk rating: Relatively Moderate). Other significant hazards include Riverine Flooding (Relatively Moderate) and Landslide (Relatively Low). FEMA's modeled event frequency puts hail here at an average of 4.5 times per year, drawn from 169 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 Columbiana County

Columbiana County, OH has 18 federal declaration records, 23% 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 13 of 18 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 37% 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.