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Iowa · FEMA + NOAA + National Risk Index

Monona County, IA

3 FEMA disaster declarations (2020–2025), with a FEMA National Risk Index rating of Very Low. Most common hazard: Winter Storm.

3
FEMA declarations
3
Major disasters
25
NRI risk · Very Low
Winter Storm
Top hazard

The verdict

Monona County ranks safer than 25% 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 2020, most often winter storm, 22% below the national county average of 4.

Safer than 25%
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
1
winter storm 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 Monona County compare?

Monona 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

Monona County's FEMA Risk Index score

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

0/100100/100Iowa avg40/10025.1/100
FEMA National Risk Index composite score vs. the Iowa county average

How disaster-prone is Monona County?

Declaration frequency

Monona County, Iowa has recorded 3 FEMA disaster declarations between 2020 and 2025, of which 3 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.6 declarations per year across a 5-year record, or roughly 47% above the Iowa county average of 2.0 and 22% below the national county average of 3.8. The dominant disaster type on record is Winter Storm, with 1 of 3 declarations falling under this category.

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 25.1/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $8.7M in annualized losses), tempered or compounded by a Relatively Low social-vulnerability score and Very High community-resilience score. Among the 18 modeled hazards, Drought carries the county's highest rating, a mid-range Relatively Moderate.

Flood exposure & the bottom line

Taken together, Monona 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. Iowa Avg

+47%

State avg: 2.0

vs. National Avg

-22%

National avg: 3.8

Avg Per Year

0.6

Over 5 years

FEMA NRI 8-hazard radar - Monona County

Monona County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 8, Flood 0, Hurricane 0, Tornado 25, Wildfire 25, Drought 48, Heat Wave 8, Winter Storm 25. Overall composite 17 of 100, classified Low. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 17 composite
Monona County NRI risk profile FIPS 19133 · composite 17/100 (Low)
How to read this radar

The radar plots Monona 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

19133

IA state code

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

Disaster Types

Winter Storm 1
Severe Storm 1
Biological 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
2025 1
2024 1
2020 1

Disaster Declarations

DR# Title Type Incident Date
4870 SEVERE WINTER STORM DR Winter Storm 2025-05-21
4796 SEVERE STORMS, FLOODING, STRAIGHT-LINE WINDS, AND TORNADOES DR Severe Storm 2024-06-24
4483 COVID-19 PANDEMIC DR Biological 2020-03-23

Storm Events in Iowa

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 5,814 7 229 $42.7M
Hail 4,239 0 0 $4.4M
Heavy Rain 2,554 0 0 $292.0K
Drought 1,768 0 0 $0
Winter Storm 1,764 3 4 $2.8M

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 25.1/100

Expected Annual Loss

Very Low

$8.7M/year

Social Vulnerability

Relatively Low

Community Resilience

Very High

Hazard Risk Breakdown

Drought Relatively Moderate
Hail Relatively Moderate
Landslide Relatively Low
Wildfire Relatively Low
Tornado Relatively Low
Ice Storm Relatively Low
Strong Wind Relatively Low
Cold Wave Relatively Low
Heat Wave Very Low
Earthquake Very Low
Lightning Very Low
Winter Weather Very Low
Hurricane 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 Iowa

Frequently Asked Questions

How many natural disasters has Monona County, Iowa had?
Monona County, Iowa has received 3 FEMA disaster declarations from 2020 to 2025. Of these, 3 were major disaster declarations.
What is the most common disaster type in Monona County?
The most common disaster type in Monona County is Winter Storm, with 1 declaration. Other disaster types include Severe Storm (1), Biological (1).
How does Monona County's disaster risk compare to the Iowa average?
Monona County has 3 disaster declarations, which is 47% higher than the Iowa county average of 2.0 declarations. Compared to the national county average of 3.8, it is 22% lower.
How many major FEMA disaster declarations has Monona County received?
Monona 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 Iowa?
The most common storm types in Iowa include Thunderstorm Wind (5,814 events), Hail (4,239 events), Heavy Rain (2,554 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Monona County?
The most active year for disaster declarations in Monona County was 2020, with 1 declaration. The county has FEMA disaster data spanning 2020 to 2025.
What is the overall disaster risk level for Monona County?
Monona 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 Monona County?
According to the FEMA National Risk Index, Monona County, Iowa has an overall risk score of 25.1 out of 100 (Very Low). The county's social vulnerability rating is Relatively Low and community resilience is Very High. The Expected Annual Loss (EAL) score is Very Low, representing $8.7M in annualized losses.
Which natural hazard poses the greatest risk to Monona County?
Based on FEMA NRI data, the highest-risk natural hazard in Monona County is Drought (risk rating: Relatively Moderate). Other significant hazards include Hail (Relatively Moderate) and Landslide (Relatively Low). 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 Monona County

Monona County, IA runs 47% above the Iowa county average for federal disaster declarations (3 vs 2), 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. Iowa 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.