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New Hampshire · FEMA + NOAA + National Risk Index

Sullivan County, NH

3 FEMA disaster declarations (2022–2024), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

3
FEMA declarations
3
Major disasters
38
NRI risk · Very Low
Flood
Top hazard

The verdict

Sullivan County ranks safer than 38% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 41% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very Low, based on 3 federal disaster declarations recorded since 2022, most often flood, 22% below the national county average of 4.

Safer than 38%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
3
FEMA declarations vs 4 national county avg
2
flood declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does Sullivan County compare?

Sullivan County vs. every U.S. county

FEMA disaster declarations, all-time

3 41st percentile higher than 41% of 2,791 counties

This county 0 30 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 · 2026-07-25

Sullivan County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the New Hampshire county average

0/100100/100New Hampshire avg67/10037.6/100
FEMA National Risk Index composite score vs. the New Hampshire county average

How disaster-prone is Sullivan County?

Declaration frequency

Sullivan County, New Hampshire has recorded 3 FEMA disaster declarations between 2022 and 2024, of which 3 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 1.5 declarations per year across a 2-year record, or roughly 22% below the New Hampshire county average of 3.9 and 22% below the national county average of 3.8. The dominant disaster type on record is Flood, with 2 of 3 declarations falling under this category.

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 37.6/100 for this county (Very Low rating). Expected Annual Loss comes in at Relatively Low (roughly $15.0M in annualized losses). Social vulnerability (Very Low) and community resilience (Relatively High) both factor into how that raw exposure plays out on the ground. 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.

Flood exposure & the bottom line

Taken together, Sullivan County reads as low relative risk on this historical lens, fewer federally recognized disasters than a typical U.S. county.

Risk Assessment

Risk Level

Low

vs. New Hampshire Avg

-22%

State avg: 3.9

vs. National Avg

-22%

National avg: 3.8

Avg Per Year

1.5

Over 2 years

FEMA NRI 8-hazard radar - Sullivan County

Sullivan County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 8, Flood 0, Hurricane 25, Tornado 8, Wildfire 8, Drought 0, Heat Wave 25, Winter Storm 48. Overall composite 15 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 15 composite
Sullivan County NRI risk profile FIPS 33019 · composite 15/100 (Low)
How to read this radar

The radar plots Sullivan County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

3

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

33019

NH state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Flood 2
Winter Storm 1

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 3 100.0%

of all 3 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2023 1
2022 1

Disaster Declarations

DR# Title Type Incident Date
4799 SEVERE WINTER STORM AND FLOODING DR Winter Storm 2024-07-10
4740 SEVERE STORMS AND FLOODING DR Flood 2023-09-14
4624 SEVERE STORM AND FLOODING DR Flood 2021-10-04

Storm Events in New Hampshire

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 1,089 3 48 $2.2M
Winter Storm 406 1 0 $0
Hail 356 0 0 $24.2K
Heavy Snow 344 0 0 $0
Flash Flood 263 0 1 $26.9M

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 37.6/100

Expected Annual Loss

Relatively Low

$15.0M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Landslide Relatively Low
Hurricane Relatively Low
Ice Storm Relatively Moderate
Lightning Relatively Low
Winter Weather Relatively Low
Heat Wave Relatively Low
Earthquake Very Low
Cold Wave Relatively Low
Avalanche Very Low
Strong Wind Relatively Low
Tornado Very Low
Hail Very Low
Wildfire Very Low
Drought No Rating

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in New Hampshire

Frequently Asked Questions

How many natural disasters has Sullivan County, New Hampshire had?
Sullivan County, New Hampshire has received 3 FEMA disaster declarations from 2022 to 2024. Of these, 3 were major disaster declarations.
What is the most common disaster type in Sullivan County?
The most common disaster type in Sullivan County is Flood, with 2 declarations. Other disaster types include Winter Storm (1).
How does Sullivan County's disaster risk compare to the New Hampshire average?
Sullivan County has 3 disaster declarations, which is 22% lower than the New Hampshire county average of 3.9 declarations. Compared to the national county average of 3.8, it is 22% lower.
How many major FEMA disaster declarations has Sullivan County received?
Sullivan County has received 3 major disaster declarations, representing 100% of all 3 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in New Hampshire?
The most common storm types in New Hampshire include Thunderstorm Wind (1,089 events), Winter Storm (406 events), Hail (356 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Sullivan County?
The most active year for disaster declarations in Sullivan County was 2022, with 1 declaration. The county has FEMA disaster data spanning 2022 to 2024.
What is the overall disaster risk level for Sullivan County?
Sullivan County's 3 FEMA disaster declarations put it in the low-risk band, fewer federally recognized disasters than a typical U.S. county over the same span.
What is the FEMA National Risk Index score for Sullivan County?
According to the FEMA National Risk Index, Sullivan County, New Hampshire has an overall risk score of 37.6 out of 100 (Very Low). The county's social vulnerability rating is Very Low and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively Low, representing $15.0M in annualized losses.
Which natural hazard poses the greatest risk to Sullivan County?
Based on FEMA NRI data, the highest-risk natural hazard in Sullivan County is Landslide (risk rating: Relatively Low). Other significant hazards include Hurricane (Relatively Low) and Ice Storm (Relatively Moderate). 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.

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 Sullivan County

Sullivan County, NH runs 22% below the New Hampshire county average for federal disaster declarations (3 vs 4), a low historical load overall.

  • Its most common federal declaration type is major disaster (3 of 3) - know the hazards most likely here before they happen. New Hampshire overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

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. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.