FEMA Records
25
High volume
New York · FEMA + NOAA + National Risk Index
Herkimer County, NY
25 FEMA disaster declarations (1974-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Severe Storm.
- 25
- FEMA declarations
- 17
- Major disasters
- 60
- NRI risk · Relatively Low
- Severe Storm
- Top hazard
The verdict
Two federal records point in the busier direction for Herkimer County. Its 25 FEMA declarations are 2% above the New York county mean and exceed the count for 71% 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
- 25
- FEMA declarations vs 21 national county avg
- 422
- 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 Herkimer County compare?
Herkimer County vs. all counties in this dataset
FEMA disaster declarations, all-time
25 Top 29% higher than 71% 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
Herkimer County's FEMA Risk Index score
FEMA National Risk Index composite score vs. the New York county average
What does Herkimer County's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 422 paid claims, totaling $6.1M. 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. Herkimer County's 25 federal records stand 2% above the New York county mean of 24.5. 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, 60.0/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $21.4M in annualized losses), and a Relatively Low social-vulnerability profile combined with Very High community resilience shapes how much of that raw exposure becomes realized harm. Among the 18 modeled hazards, Riverine Flooding carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at an average of 3.5 times per year here, based on 98 historical events on record.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 25 entries for Herkimer County, including 17 Major Disaster records, 2% above the New York county mean. Across the 46-year span, that works out to 0.5 declarations a year. Severe Storm leads the file with 9 entries. Declaration type records the federal action taken, not every assistance program approved.
66 /100
Historical Activity Index
High historical activity
Herkimer County, NY · 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) High
18/30
25 OpenFEMA declarations, full ingest window (1.2x national county average)
County Disaster Density High
13/25
25 declarations (1.0x state county average of 25)
Major Disaster Share High
17/25
17 of 25 declarations are major disasters (68%)
Hazard Diversity Very High
18/20
7 different disaster types declared in Herkimer County
Historical Declaration Activity
Activity Band
High
vs. New York Avg
+2%
State avg: 24.5
vs. National Avg
+21%
National avg: 20.7
Avg Per Year
0.5
Over 46 years
FEMA NRI 8-hazard radar - Herkimer 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
68%
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 Herkimer 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 |
|---|---|---|
| Riverine Flooding | Relatively Moderate | an average of 3.5 times per year |
| Landslide | Relatively Low | an average of 1.3 times per year |
| Winter Weather | Relatively Moderate | an average of 29 times per year |
| Ice Storm | Relatively Moderate | roughly once every 2 years |
| Hurricane | Relatively Low | roughly once every 72 years |
| Lightning | Relatively Low | an average of 26 times per year |
| Earthquake | Very Low | roughly once every 562 years |
| Cold Wave | Relatively Low | an average of 5.3 times per year |
| Tornado | Relatively Low | roughly once every 4 years |
| Heat Wave | Very Low | 1.6 modeled event-days per year |
| Avalanche | Very Low | roughly once every 100 years |
| Strong Wind | Relatively Low | an average of 1.1 times per year |
| Wildfire | Very Low | roughly once every 21,948 years |
| Hail | Very Low | an average of 1.7 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 9
Flood 5
Snowstorm 3
Hurricane 3
Biological 2
Other 2
Fire 1
What Severe Storm declarations mean here
Severe Storm is the most frequent declaration type on Herkimer County's record, 36% 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 - 17 68.0%
of all 25 declarations
Emergency - 8 32.0%
of all 25 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2020 | 3 | |
| 2017 | 1 | |
| 2014 | 1 | |
| 2013 | 2 | |
| 2011 | 4 | |
| 2007 | 1 | |
| 2006 | 1 | |
| 2005 | 1 | |
| 2004 | 1 | |
| 2003 | 2 | |
| 2001 | 2 | |
| 2000 | 1 | |
| 1998 | 1 | |
| 1996 | 1 | |
| 1993 | 1 | |
Show 2 earlier declaration years
| 1976 | 1 | |
| 1974 | 1 | |
Disaster Declarations
How the 25 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 25 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 4480 | COVID-19 PANDEMIC | DR | Biological | 2020-03-20 |
| 3434 | COVID-19 | EM | Biological | 2020-03-13 |
| 4472 | SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING | DR | Severe Storm | 2019-12-19 |
| 4322 | SEVERE WINTER STORM AND SNOWSTORM | DR | Snowstorm | 2017-07-12 |
| 4180 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2014-07-08 |
| 4129 | SEVERE STORMS AND FLOODING | DR | Flood | 2013-07-12 |
| 3351 | HURRICANE SANDY | EM | Hurricane | 2012-10-28 |
| 4031 | REMNANTS OF TROPICAL STORM LEE | DR | Severe Storm | 2011-09-13 |
| 3341 | REMNANTS OF TROPICAL STORM LEE | EM | Severe Storm | 2011-09-08 |
| 4020 | HURRICANE IRENE | DR | Hurricane | 2011-08-31 |
| 1993 | SEVERE STORMS, FLOODING, TORNADOES, AND STRAIGHT-LINE WINDS | DR | Flood | 2011-06-10 |
| 1670 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2006-12-12 |
| 1650 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2006-07-01 |
| 3262 | HURRICANE KATRINA EVACUATION | EM | Hurricane | 2005-09-30 |
| 1534 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2004-08-03 |
| 3186 | POWER OUTAGE | EM | Other | 2003-08-23 |
| 3173 | SNOWSTORMS | EM | Snowstorm | 2003-02-25 |
| 1391 | FIRES AND EXPLOSIONS | DR | Fire | 2001-09-11 |
| 3155 | WEST NILE VIRUS | EM | Other | 2000-10-11 |
| 1335 | SEVERE STORMS AND FLOODING | DR | Severe Storm | 2000-07-21 |
Show 5 earlier declaration records
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 1244 | NY - SEVERE WX, SEPT 7, 1998 | DR | Severe Storm | 1998-09-11 |
| 1095 | SEVERE STORMS AND FLOODING | DR | Flood | 1996-01-24 |
| 3107 | SEVERE BLIZZARD | EM | Snowstorm | 1993-03-17 |
| 515 | SEVERE STORMS & FLOODING | DR | Flood | 1976-07-21 |
| 447 | SEVERE STORMS & FLOODING | DR | Flood | 1974-07-23 |
Storm Events in New York
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Herkimer County.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 8,295 | 6 | 45 | $45.0M |
| Winter Weather | 2,261 | 7 | 17 | $705.5K |
| Flash Flood | 1,775 | 23 | 3 | $674.3M |
| Strong Wind | 1,399 | 2 | 12 | $9.2M |
| Winter Storm | 1,228 | 13 | 2 | $4.9M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
422
Total Paid
$6.1M
Avg Per Claim
$14.5K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Relatively Low
Score: 60.0/100
Expected Annual Loss
Relatively Low
$21.4M/year
Social Vulnerability
Relatively Low
Community Resilience
Very High
Hazard Risk Breakdown
Riverine Flooding Relatively Moderate
Landslide Relatively Low
Winter Weather Relatively Moderate
Ice Storm Relatively Moderate
Hurricane Relatively Low
Lightning Relatively Low
Earthquake Very Low
Cold Wave Relatively Low
Tornado Relatively Low
Heat Wave Very Low
Avalanche Very Low
Strong Wind Relatively Low
Wildfire 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: Riverine Flooding
Riverine Flooding is the model's measure of a watershed draining more water than its channel can carry. Unlike flash flooding it usually builds over days and is forecast in advance, which makes it the hazard where warning time most reliably converts into reduced harm.
Worth noting for Herkimer County: the model and the federal record do NOT point at the same hazard. Riverine Flooding carries the highest modeled rating (Relatively Moderate), 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
Herkimer County's closest FEMA peer: Westmoreland County, VA
Comparisons use published FEMA declaration fields plus the National Risk Index composite for Herkimer County. Record similarity, not a safety rating.
Closest declaration profiles
Herkimer County shows 25 FEMA declarations, led by Severe Storm.
Similar Major-disaster share
Herkimer County: 17 of 25 of its declarations are Major.
Similar modeled NRI score
Herkimer County: NRI composite 60.0 (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 Herkimer County - capture-dated entries only.
Further reading for this county
Understanding disaster data
Herkimer County's NFIP claims file (422 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 Herkimer County?
The most common disaster type in Herkimer County is Severe Storm, with 9 declarations. Other disaster types include Flood (5), Snowstorm (3), Hurricane (3).
How does Herkimer County's FEMA declaration record compare with the New York average?
FEMA lists 25 declaration records for Herkimer County. That is 2% above the New York county mean of 24.5. Its count is also 21% above 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 Herkimer County received?
Herkimer County has received 17 major disaster declarations, representing 68% of all 25 disaster declarations.
How many flood insurance claims has Herkimer County filed?
Herkimer County has 422 National Flood Insurance Program (NFIP) claims totaling $6.1M in payments, with an average of $14.5K per claim.
What was the worst year for disasters in Herkimer County?
The most active year for disaster declarations in Herkimer County was 2011, with 4 declarations. The county has FEMA disaster data spanning 1974 to 2020.
What is the FEMA National Risk Index score for Herkimer County?
According to the FEMA National Risk Index, Herkimer County, New York has an overall risk score of 60.0 out of 100 (Relatively Low). On social vulnerability the county rates Relatively Low; on community resilience, Very High. The Expected Annual Loss (EAL) score is Relatively Low, representing $21.4M in annualized losses.
Which natural hazard poses the greatest risk to Herkimer County?
FEMA's NRI data points to Herkimer County is Riverine Flooding (risk rating: Relatively Moderate). Other significant hazards include Landslide (Relatively Low) and Winter Weather (Relatively Moderate). FEMA's modeled event frequency puts riverine flooding here at an average of 3.5 times per year, drawn from 98 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 Herkimer County
Herkimer County, NY has 25 federal declaration records, 2% more than the New York county mean of 25; its history sits in PlainHazard's high activity band.
- Within this above-state-average declaration file, major disaster leads with 17 of 25 records; the category describes past federal action, not the next likely hazard. New York overview
- The state benchmark and national rank point the same way: this count tops the New York mean and the totals for 71% 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.