FEMA Records
20
Above median
Pennsylvania · FEMA + NOAA + National Risk Index
Adams County, PA
20 FEMA disaster declarations (1972-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.
- 20
- FEMA declarations
- 14
- Major disasters
- 68
- NRI risk · Relatively Low
- Flood
- Top hazard
The verdict
Two federal records point in the busier direction for Adams 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 32%, based on modeled expected annual loss, social vulnerability, and community resilience.
- Riskiest 32%
- 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
- 399
- 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.
How does Adams County compare?
Adams County vs. all counties in this dataset
FEMA disaster declarations, all-time
20 46th percentile higher than 46% 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 · 2026-08-03
Adams County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the Pennsylvania county average
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Adams County is led by Riverine Flooding (about $17.3M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Drought 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 Adams County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 399 paid claims, totaling $6.7M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $16.8K 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. Adams 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, 67.5/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $27.2M 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. Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at 3.3 modeled event-days per year here, based on 133 historical events on record.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 20 entries for Adams County, including 14 Major Disaster records, 8% above the Pennsylvania county mean. Across the 48-year span, that works out to 0.4 declarations a year. Flood leads the file with 7 entries. Declaration type records the federal action taken, not every assistance program approved.
58 /100
Historical Activity Index
High historical activity
Adams 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 High
13/20
5 different disaster types declared in Adams County
Historical Declaration Activity
Activity Band
High
vs. Pennsylvania Avg
+8%
State avg: 18.6
vs. National Avg
-3%
National avg: 20.7
Avg Per Year
0.4
Over 48 years
FEMA NRI 8-hazard radar - Adams 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
70%
Major-heavy
NRI risk score
68
Relatively Low
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Adams 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 |
|---|---|---|
| Drought | Relatively Moderate | 3.3 modeled event-days per year |
| Hurricane | Relatively Moderate | roughly once every 13 years |
| Riverine Flooding | Relatively Moderate | an average of 1.6 times per year |
| Strong Wind | Relatively Moderate | an average of 6.5 times per year |
| Earthquake | Relatively Low | roughly once every 895 years |
| Winter Weather | Relatively Moderate | an average of 12 times per year |
| Heat Wave | Relatively Low | 4.8 modeled event-days per year |
| Lightning | Relatively Low | an average of 37 times per year |
| Tornado | Relatively Low | roughly once every 3 years |
| Ice Storm | Relatively Low | roughly once every 1 years |
| Wildfire | Very Low | roughly once every 13,681 years |
| Landslide | Very Low | roughly once every 4 years |
| Hail | Very Low | an average of 3.1 times per year |
| Cold Wave | Relatively Low | an average of 1.2 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
Snowstorm 4
Severe Storm 4
Hurricane 3
Biological 2
What Flood declarations mean here
Flood is the most frequent declaration type on Adams 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 | |
|---|---|---|
| 2020 | 2 | |
| 2016 | 1 | |
| 2013 | 1 | |
| 2011 | 2 | |
| 2010 | 1 | |
| 2006 | 1 | |
| 2005 | 1 | |
| 2004 | 2 | |
| 2003 | 1 | |
| 1996 | 3 | |
| 1994 | 1 | |
| 1993 | 1 | |
| 1977 | 1 | |
| 1975 | 1 | |
| 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 |
|---|---|---|---|---|
| 4506 | COVID-19 PANDEMIC | DR | Biological | 2020-03-30 |
| 3441 | COVID-19 | EM | Biological | 2020-03-13 |
| 4267 | SEVERE WINTER STORM AND SNOWSTORM | DR | Snowstorm | 2016-03-23 |
| 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 |
| 1898 | SEVERE WINTER STORMS AND SNOWSTORMS | DR | Snowstorm | 2010-04-16 |
| 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 |
| 1120 | FLOODING, SEVERE STORMS | DR | Flood | 1996-06-18 |
| 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 |
| 523 | SEVERE STORMS & FLOODING | DR | Flood | 1976-10-20 |
| 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 Adams 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
399
Total Paid
$6.7M
Avg Per Claim
$16.8K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 67.5/100
Expected Annual Loss
Relatively Low
$27.2M/year
Social Vulnerability
Relatively Low
Community Resilience
Relatively High
Hazard Risk Breakdown
Drought Relatively Moderate
Hurricane Relatively Moderate
Riverine Flooding Relatively Moderate
Strong Wind Relatively Moderate
Earthquake Relatively Low
Winter Weather Relatively Moderate
Heat Wave Relatively Low
Lightning Relatively Low
Tornado Relatively Low
Ice Storm Relatively Low
Wildfire Very Low
Landslide Very Low
Hail Very Low
Cold Wave Relatively 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: Drought
Drought is the slowest of the modeled hazards and the least visible: it does its damage to agriculture, water supply and soil over seasons rather than hours, so it rarely produces the kind of single-day damage that drives a disaster declaration. FEMA scores it in event-days per year rather than discrete events for exactly that reason.
Worth noting for Adams County: the model and the federal record do NOT point at the same hazard. Drought carries the highest modeled rating (Relatively Moderate), 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
Adams County's closest FEMA peer: Sussex County, DE
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Adams County. Record similarity, not a safety rating.
Closest declaration profiles
Adams County shows 20 FEMA declarations, led by Flood.
Similar Major-disaster share
Adams County: 14 of 20 of its declarations are Major.
Similar modeled NRI score
Adams County: NRI composite 67.5 (Relatively Low).
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 Adams County - capture-dated entries only.
Further reading for this county
Understanding disaster data
Adams County's NFIP claims file (399 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).
Related
Frequently Asked Questions
What is the most common disaster type in Adams County?
The most common disaster type in Adams County is Flood, with 7 declarations. Other disaster types include Snowstorm (4), Severe Storm (4), Hurricane (3).
How does Adams County's FEMA declaration record compare with the Pennsylvania average?
FEMA lists 20 declaration records for Adams 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 Adams County received?
Adams County has received 14 major disaster declarations, representing 70% of all 20 disaster declarations.
How many flood insurance claims has Adams County filed?
Adams County has 399 National Flood Insurance Program (NFIP) claims totaling $6.7M in payments, with an average of $16.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Adams County?
No. In Adams County, Drought has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $17.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Adams County?
The most active year for disaster declarations in Adams County was 1996, with 3 declarations. The county has FEMA disaster data spanning 1972 to 2020.
What is the FEMA National Risk Index score for Adams County?
According to the FEMA National Risk Index, Adams County, Pennsylvania has an overall risk score of 67.5 out of 100 (Relatively Low). On social vulnerability the county rates Relatively Low; on community resilience, Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $27.2M in annualized losses.
Which natural hazard poses the greatest risk to Adams County?
Based on FEMA NRI data, the highest-risk natural hazard in Adams County is Drought (risk rating: Relatively Moderate). Other significant hazards include Hurricane (Relatively Moderate) and Riverine Flooding (Relatively Moderate). FEMA's modeled event frequency puts drought here at 3.3 modeled event-days per year, drawn from 133 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 Adams County
Adams County, PA has 20 federal declaration records, 8% more than the Pennsylvania county mean of 19; 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. Pennsylvania overview
- The state benchmark and national rank point the same way: this count tops the Pennsylvania mean and the totals for 46% 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.
PlainHazard derives this profile from FEMA's Disaster Declarations Summaries and National Risk Index data. The declaration comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015-2025. ncdc.noaa.gov/stormevents
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.