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Pennsylvania · FEMA + NOAA + National Risk Index

Tioga County, PA

20 FEMA disaster declarations (1972-2024), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.

20
FEMA declarations
14
Major disasters
60
NRI risk · Relatively Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Tioga County. Its 20 FEMA declarations are 8% above the Pennsylvania 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 40%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 40%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
20
FEMA declarations vs 21 national county avg
233
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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FEMA OpenFEMA declaration desk

County FIPS 42117 · Tioga County 20 declarations · rank 1634/3,266

DECL-HEAVY · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-LOW · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 20
  • MAJOR-MID 70%
  • RANK-LOWER #1,634
  • PHOTO-FINISH Monona
  • NRI-LOW 60
  • ACT-HIGH High
  • TYPE-LEAD Flood
  • VS-ST-ABOVE +8%

Nearest declaration peer: Monona, IA (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Pennsylvania state profile

Tioga County in the declaration-count neighbourhood

FEMA declaration records among Tioga County and nearest peers by total count

declarations

What this shows Tioga County carries 20 FEMA declaration records, ranked 1634 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

How Tioga County's FEMA declaration count compares nationally

Tioga County vs. all counties in this dataset

FEMA disaster declarations, all-time · Tioga County

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 · 2026-08-25

Tioga County's FEMA Risk Index score

0/100100/100Pennsylvania avg67/10059.8/100
FEMA National Risk Index composite score vs. the Pennsylvania county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Tioga County is led by Riverine Flooding (about $16.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Landslide carries the highest National Risk Index rating (Relatively Low). 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 Tioga County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 233 paid claims, totaling $3.4M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $14.5K 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. Tioga County's 20 federal records stand 8% above the Pennsylvania county mean of 18.6. 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, 59.8/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $18.6M 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. Even the county's top-rated hazard, Landslide, only reaches Relatively Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at an average of 1.4 times per year here.

60 /100

Historical Activity Index

High historical activity

Tioga County, PA · 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
13/25

20 declarations (1.1x state county average of 19)

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 Tioga County

FEMA NRI 8-hazard radar - Tioga County

Tioga County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 48, Hurricane 25, Tornado 8, Wildfire 8, Drought 0, Heat Wave 8, Winter Storm 48. The simple mean of these eight displayed scores is 19 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 19 8-hazard mean
Tioga County NRI risk profile FIPS 42117 · displayed-hazard mean 19/100
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

60

Relatively Low

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

How often does each hazard strike Tioga 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
Landslide Relatively Low an average of 1.4 times per year
Riverine Flooding Relatively Moderate an average of 1.3 times per year
Winter Weather Relatively Moderate an average of 15 times per year
Hurricane Relatively Low roughly once every 28 years
Avalanche Relatively Low roughly once every 100 years
Lightning Relatively Moderate an average of 31 times per year
Strong Wind Relatively Moderate an average of 1.8 times per year
Earthquake Very Low roughly once every 2,551 years
Ice Storm Relatively Low roughly once every 5 years
Tornado Very Low roughly once every 4 years
Wildfire Very Low roughly once every 3,980 years
Heat Wave Very Low 0.7 modeled event-days per year
Cold Wave Very Low an average of 3.7 times per year
Hail Very Low an average of 1.5 times per year

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

Disaster Types

Flood 7
Severe Storm 5
Hurricane 3
Biological 2
Snowstorm 2
Tropical Storm 1

What Flood declarations mean here

Flood is the most frequent declaration type on Tioga County's record, 35% 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 - 14 70.0%

of all 20 declarations

Emergency - 6 30.0%

of all 20 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2020 2
2019 1
2013 1
2011 3
2006 1
2005 1
2004 2
2003 1
1997 1
1996 1
1993 1
1977 1
1976 1
1975 1
Show 1 earlier declaration years
1972 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
4815 TROPICAL STORM DEBBY DR Tropical Storm 2024-09-11
4506 COVID-19 PANDEMIC DR Biological 2020-03-30
3441 COVID-19 EM Biological 2020-03-13
4408 SEVERE STORMS AND FLOODING DR Severe Storm 2018-11-27
3356 HURRICANE SANDY EM Hurricane 2012-10-29
4030 TROPICAL STORM LEE DR Flood 2011-09-12
3340 REMNANTS OF TROPICAL STORM LEE EM Flood 2011-09-08
4003 SEVERE STORMS AND FLOODING DR Severe Storm 2011-07-13
1649 SEVERE STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2006-06-30
3235 HURRICANE KATRINA EM Hurricane 2005-09-10
1557 TROPICAL DEPRESSION IVAN DR Hurricane 2004-09-19
1555 SEVERE STORMS AND FLOODING ASSOCIATED WITH TROPICAL DEPRESSION FRANCES DR Severe Storm 2004-09-19
1485 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-08-23
1150 SEVERE THUNDERSTORMS, HIGH WINDS,RAIN, FLOODING DR Flood 1996-12-23
1093 SEVERE STORMS AND FLOODING DR Flood 1996-01-21
3105 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
3026 SNOWSTORMS EM Snowstorm 1977-01-29
513 HIGH WINDS, FLASH FLOODS DR Flood 1976-07-07
485 SEVERE STORMS, HEAVY RAINS & FLOODING DR Flood 1975-09-26
340 TROPICAL STORM AGNES DR Flood 1972-06-23

Storm Events in Pennsylvania

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

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 9,976 18 114 $115.5M
Flash Flood 2,288 23 8 $463.2M
Winter Weather 1,670 23 268 $566.0K
Hail 1,400 0 0 $2.6M
Winter Storm 881 14 17 $2.9M

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

NFIP Flood Insurance Claims

Total Claims

233

Total Paid

$3.4M

Avg Per Claim

$14.5K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 59.8/100

Expected Annual Loss

Relatively Low

$18.6M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Landslide risk is a function of slope, soil and water, so it is usually a SECOND-ORDER hazard: it is triggered by the rainfall, snowmelt, wildfire burn scars or seismic shaking that came first. That is why a county can carry high landslide exposure whose realized damage is recorded under a flood or storm declaration instead.

Worth noting for Tioga County: the model and the federal record do NOT point at the same hazard. Landslide carries the highest modeled rating (Relatively Low), 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

Tioga County's closest FEMA peer: Grainger County, TN

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

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Tioga 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.

Further reading for this county

Understanding disaster data

Tioga County's NFIP claims file (233 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 Tioga County?
The most common disaster type in Tioga County is Flood, with 7 declarations. Other disaster types include Severe Storm (5), Hurricane (3), Biological (2).
How does Tioga County's FEMA declaration record compare with the Pennsylvania average?
FEMA lists 20 declaration records for Tioga County. That is 8% above the Pennsylvania county mean of 18.6. 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 Tioga County received?
Tioga County has received 14 major disaster declarations, representing 70% of all 20 disaster declarations.
How many flood insurance claims has Tioga County filed?
Tioga County has 233 National Flood Insurance Program (NFIP) claims totaling $3.4M in payments, with an average of $14.5K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Tioga County?
No. In Tioga County, Landslide has the highest National Risk Index rating (Relatively Low), while Riverine Flooding leads Expected Annual Loss at about $16.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Tioga County?
The most active year for disaster declarations in Tioga County was 2011, with 3 declarations. The county has FEMA disaster data spanning 1972 to 2024.
What is the FEMA National Risk Index score for Tioga County?
According to the FEMA National Risk Index, Tioga County, Pennsylvania has an overall risk score of 59.8 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 $18.6M in annualized losses.
Which natural hazard poses the greatest risk to Tioga County?
Based on FEMA NRI data, the highest-risk natural hazard in Tioga County as of the latest release is Landslide (risk rating: Relatively Low). Other significant hazards include Riverine Flooding (Relatively Moderate) and Winter Weather (Relatively Moderate). FEMA's modeled event frequency puts landslide here at an average of 1.4 times per year. 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 Tioga County · vintage 2026-08-25 · Methodology · Pennsylvania profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events