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Pennsylvania · FEMA + NOAA + National Risk Index

Carbon County, PA

18 FEMA disaster declarations (1965-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.

18
FEMA declarations
11
Major disasters
59
NRI risk · Relatively Low
Severe Storm
Top hazard

The verdict

Carbon County has a nationally busy FEMA history: 18 declarations, more than 37% of counties in this registry. But the state comparison tempers that reading: the total is 3% below the Pennsylvania county mean. FEMA's separate National Risk Index places the county in the riskiest 41%; that score models loss and vulnerability rather than counting declarations.

Riskiest 41%
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
94
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 Carbon County compare?

Carbon 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

Carbon County's FEMA Risk Index score

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

0/100100/100Pennsylvania avg67/10059.4/100
FEMA National Risk Index composite score vs. the Pennsylvania county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Carbon County is led by Riverine Flooding (about $12.2M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Lightning 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 Carbon County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 94 paid claims, totaling $450.8K. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $4.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a Pennsylvania county averages 18.6 federal declaration records, while Carbon County has 18. 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 carries a high composite score on FEMA's National Risk Index, 59.4/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $21.6M in annualized losses), and a Relatively Low social-vulnerability profile combined with Relatively High community resilience shapes how much of that raw exposure becomes realized harm. Of the 18 hazards FEMA models, Lightning stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 34 times per year here, based on 96,386 historical events on record.

Declaration frequency

Nationally, Carbon County's 18 FEMA records form a high-volume history; within Pennsylvania, however, the count is 3% below the county mean. 11 entries carry the Major Disaster classification. The largest incident group is Severe Storm, appearing 4 times. The full 55-year record averages 0.3 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

55 /100

Historical Activity Index

High historical activity

Carbon 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
13/30

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

County Disaster Density Moderate
12/25

18 declarations (1.0x state county average of 19)

Major Disaster Share High
15/25

11 of 18 declarations are major disasters (61%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Carbon County

Historical Declaration Activity

Activity Band

High

vs. Pennsylvania Avg

-3%

State avg: 18.6

vs. National Avg

-13%

National avg: 20.7

Avg Per Year

0.3

Over 55 years

FEMA NRI 8-hazard radar - Carbon County

Carbon County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 25, Tornado 25, Wildfire 8, Drought 0, Heat Wave 48, Winter Storm 48. The simple mean of these eight displayed scores is 23 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 23 8-hazard mean
Carbon County NRI risk profile FIPS 42025 · displayed-hazard mean 23/100
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

61%

Major-heavy

NRI risk score

59

Relatively Low

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

How often does each hazard strike Carbon 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
Lightning Relatively High an average of 34 times per year
Heat Wave Relatively Moderate 1.9 modeled event-days per year
Winter Weather Relatively Moderate an average of 18 times per year
Strong Wind Relatively Moderate an average of 4.3 times per year
Cold Wave Relatively Moderate an average of 3.2 times per year
Hurricane Relatively Low roughly once every 19 years
Landslide Relatively Low roughly once every 3 years
Riverine Flooding Relatively Low an average of 1.9 times per year
Avalanche Very Low roughly once every 100 years
Ice Storm Relatively Low an average of 1.7 times per year
Earthquake Very Low roughly once every 1,196 years
Wildfire Very Low roughly once every 2,773 years
Tornado Relatively Low roughly once every 6 years
Hail Very Low an average of 2.1 times per year

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

Disaster Types

Hurricane 4
Flood 4
Severe Storm 4
Snowstorm 3
Biological 2
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Carbon County's record, 22% 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 - 11 61.1%

of all 18 declarations

Emergency - 7 38.9%

of all 18 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2013 1
2011 1
2006 1
2005 1
2004 2
2003 1
1996 2
1994 1
1993 1
1986 1
1977 1
1972 1
1969 1
1965 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
4506 COVID-19 PANDEMIC DR Biological 2020-03-30
3441 COVID-19 EM Biological 2020-03-13
3356 HURRICANE SANDY EM Hurricane 2012-10-29
3340 REMNANTS OF TROPICAL STORM LEE EM Flood 2011-09-08
1649 SEVERE STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2006-06-30
3235 HURRICANE KATRINA EM Hurricane 2005-09-10
1555 SEVERE STORMS AND FLOODING ASSOCIATED WITH TROPICAL DEPRESSION FRANCES DR Severe Storm 2004-09-19
1557 TROPICAL DEPRESSION IVAN DR Hurricane 2004-09-19
3180 SNOW EM Severe Storm 2003-03-14
1093 SEVERE STORMS AND FLOODING DR Flood 1996-01-21
1085 BLIZZARD OF 96 DR Snowstorm 1996-01-13
1015 SEVERE WINTER STORMS DR Severe Storm 1994-03-10
3105 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
745 HURRICANE GLORIA DR Hurricane 1985-10-08
3026 SNOWSTORMS EM Snowstorm 1977-01-29
340 TROPICAL STORM AGNES DR Flood 1972-06-23
273 SEVERE STORMS & FLOODING DR Flood 1969-08-19
206 WATER SHORTAGE DR Drought 1965-08-18

Storm Events in Pennsylvania

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

94

Total Paid

$450.8K

Avg Per Claim

$4.8K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 59.4/100

Expected Annual Loss

Relatively Low

$21.6M/year

Social Vulnerability

Relatively Low

Community Resilience

Relatively High

Hazard Risk Breakdown

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

Lightning is modeled as a high-frequency, low-per-event hazard: strike counts are large, but each strike affects a very small area. Its aggregate cost accumulates through structure fires, electrical and electronic damage, and it is one of the few hazards whose risk is essentially continuous through the season rather than episodic.

For Carbon County the two measures on this page point the same way: Lightning is the county's highest-rated modeled hazard (Relatively High), 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

Carbon County's closest FEMA peer: Spalding County, GA

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

Further reading for this county

Understanding disaster data

Carbon County's NFIP claims file (94 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 Carbon County?
The most common disaster type in Carbon County is Severe Storm, with 4 declarations. Other disaster types include Hurricane (4), Flood (4), Snowstorm (3).
How does Carbon County's FEMA declaration record compare with the Pennsylvania average?
The typical Pennsylvania county has 18.6 FEMA declaration records; Carbon County has 18, or 3% fewer. Against the national county mean of 20.7, this county's total is 13% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Carbon County received?
Carbon County has received 11 major disaster declarations, representing 61% of all 18 disaster declarations.
How many flood insurance claims has Carbon County filed?
Carbon County has 94 National Flood Insurance Program (NFIP) claims totaling $450.8K in payments, with an average of $4.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Carbon County?
No. In Carbon County, Lightning has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $12.2M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Carbon County?
The most active year for disaster declarations in Carbon County was 1996, with 2 declarations. The county has FEMA disaster data spanning 1965 to 2020.
What is the FEMA National Risk Index score for Carbon County?
According to the FEMA National Risk Index, Carbon County, Pennsylvania has an overall risk score of 59.4 out of 100 (Relatively Low). The county's social vulnerability rating is Relatively Low and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $21.6M in annualized losses.
Which natural hazard poses the greatest risk to Carbon County?
FEMA's NRI data points to Carbon County as of the latest release is Lightning (risk rating: Relatively High). Other significant hazards include Heat Wave (Relatively Moderate) and Winter Weather (Relatively Moderate). FEMA's modeled event frequency puts lightning here at an average of 34 times per year, drawn from 96,386 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 Carbon County

Against a Pennsylvania county mean of 19 declarations, Carbon County, PA records 18, or 3% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (11 of 18) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Pennsylvania overview
  • Nationally the county exceeds 37% of recorded county totals, but its own Pennsylvania benchmark is higher. The ranking keeps those two contexts separate. 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

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

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.