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Utah · FEMA + NOAA + National Risk Index

Wasatch County, UT

2 FEMA disaster declarations (2018–2024), with a FEMA National Risk Index rating of Very Low. Most common hazard: Flood.

2
FEMA declarations
1
Major disasters
34
NRI risk · Very Low
Flood
Top hazard

The verdict

Wasatch County ranks safer than 34% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 22% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very Low, based on 2 federal disaster declarations recorded since 2018, most often flood, 48% below the national county average of 4.

Safer than 34%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
2
FEMA declarations vs 4 national county avg
1
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 Wasatch County compare?

Wasatch County vs. every U.S. county

FEMA disaster declarations, all-time

2 22nd percentile higher than 22% 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

Wasatch County's FEMA Risk Index score

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

0/100100/100Utah avg45/10033.5/100
FEMA National Risk Index composite score vs. the Utah county average

How disaster-prone is Wasatch County?

Declaration frequency

Wasatch County, Utah has recorded 2 FEMA disaster declarations between 2018 and 2024, of which 1 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.3 declarations per year across a 6-year record, or roughly 3% below the Utah county average of 2.1 and 48% below the national county average of 3.8. The dominant disaster type on record is Flood, with 1 of 2 declarations falling under this category.

FEMA National Risk Index

FEMA's data shows an elevated National Risk Index composite of 33.5/100 for this county (Very Low rating). Expected Annual Loss comes in at Relatively Low (roughly $16.7M in annualized losses). Social vulnerability (Very Low) and community resilience (Very High) both factor into how that raw exposure plays out on the ground. Among the 18 modeled hazards, Landslide carries the county's highest rating, a mid-range Relatively Moderate.

Flood exposure & the bottom line

Taken together, Wasatch 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. Utah Avg

-3%

State avg: 2.1

vs. National Avg

-48%

National avg: 3.8

Avg Per Year

0.3

Over 6 years

FEMA NRI 8-hazard radar - Wasatch County

Wasatch County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 8, Flood 0, Hurricane 0, Tornado 8, Wildfire 48, Drought 8, Heat Wave 8, Winter Storm 70. Overall composite 19 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 19 composite
Wasatch County NRI risk profile FIPS 49051 · composite 19/100 (Low)
How to read this radar

The radar plots Wasatch 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

2

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

49051

UT state code

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

Disaster Types

Flood 1
Fire 1

Declaration Types

What DR / EM / FM mean

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

Major Disaster - 1 50.0%

of all 2 declarations

Fire Management - 1 50.0%

of all 2 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2018 1

Disaster Declarations

DR# Title Type Incident Date
4752 FLOODING DR Flood 2023-12-23
5248 DOLLAR RIDGE FIRE FM Fire 2018-07-02

Storm Events in Utah

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 1,713 3 7 $2.4M
Flash Flood 660 30 20 $138.2M
High Wind 605 4 60 $13.0M
Heavy Snow 567 2 4 $2.4M
Drought 368 0 0 $0

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 33.5/100

Expected Annual Loss

Relatively Low

$16.7M/year

Social Vulnerability

Very Low

Community Resilience

Very High

Hazard Risk Breakdown

Landslide Relatively Moderate
Wildfire Relatively Moderate
Avalanche Relatively High
Winter Weather Relatively High
Lightning Relatively Moderate
Earthquake Very Low
Volcanic Activity Very Low
Strong Wind Relatively Low
Drought Very Low
Heat Wave Very Low
Tornado Very Low
Ice Storm Very Low
Cold Wave Very Low
Hail Very Low

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 Utah

Frequently Asked Questions

How many natural disasters has Wasatch County, Utah had?
Wasatch County, Utah has received 2 FEMA disaster declarations from 2018 to 2024. Of these, 1 were major disaster declarations.
What is the most common disaster type in Wasatch County?
The most common disaster type in Wasatch County is Flood, with 1 declaration. Other disaster types include Fire (1).
How does Wasatch County's disaster risk compare to the Utah average?
Wasatch County has 2 disaster declarations, which is 3% lower than the Utah county average of 2.1 declarations. Compared to the national county average of 3.8, it is 48% lower.
How many major FEMA disaster declarations has Wasatch County received?
Wasatch County has received 1 major disaster declaration, representing 50% of all 2 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Utah?
The most common storm types in Utah include Thunderstorm Wind (1,713 events), Flash Flood (660 events), High Wind (605 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Wasatch County?
The most active year for disaster declarations in Wasatch County was 2018, with 1 declaration. The county has FEMA disaster data spanning 2018 to 2024.
What is the overall disaster risk level for Wasatch County?
Wasatch County's 2 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 Wasatch County?
According to the FEMA National Risk Index, Wasatch County, Utah has an overall risk score of 33.5 out of 100 (Very Low). The county's social vulnerability rating is Very Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively Low, representing $16.7M in annualized losses.
Which natural hazard poses the greatest risk to Wasatch County?
Based on FEMA NRI data, the highest-risk natural hazard in Wasatch County is Landslide (risk rating: Relatively Moderate). Other significant hazards include Wildfire (Relatively Moderate) and Avalanche (Relatively High). 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 Wasatch County

Wasatch County, UT runs 3% below the Utah county average for federal disaster declarations (2 vs 2), a low historical load overall.

  • Its most common federal declaration type is major disaster (1 of 2) - know the hazards most likely here before they happen. Utah 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.