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Illinois · FEMA + NOAA + National Risk Index

Jo Daviess County, IL

16 FEMA disaster declarations (1965-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.

16
FEMA declarations
12
Major disasters
51
NRI risk · Relatively Low
Flood
Top hazard

The verdict

Two federal records point in the busier direction for Jo Daviess County. Its 16 FEMA declarations are 24% above the Illinois county mean and exceed the count for 27% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 49%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 49%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
16
FEMA declarations vs 21 national county avg
343
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.

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How does Jo Daviess County compare?

Jo Daviess County vs. all counties in this dataset

FEMA disaster declarations, all-time

16 27th percentile higher than 27% of 3,266 counties

This county 0 90 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 · 2026-08-03

Jo Daviess County's FEMA Risk Index score

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

0/100100/100Illinois avg55/10051.3/100
FEMA National Risk Index composite score vs. the Illinois county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Jo Daviess County is led by Riverine Flooding (about $8.0M Expected Annual Loss, Historical Loss Ratio Relatively High), while Landslide 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 Jo Daviess County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 343 paid claims, totaling $3.9M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $11.4K 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. Jo Daviess County's 16 federal records stand 24% above the Illinois county mean of 12.9. 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, 51.3/100, rated Relatively Low. Its Expected Annual Loss rating is Relatively Low (roughly $15.6M in annualized losses), and a Relatively Moderate social-vulnerability profile combined with Relatively Moderate community resilience shapes how much of that raw exposure becomes realized harm. Among the 18 modeled hazards, Landslide carries the county's highest rating, a mid-range Relatively Moderate. FEMA's modeled frequency puts that hazard at roughly once every 2 years here.

Declaration frequency

The FEMA register is busy by both local and national comparisons. It contains 16 entries for Jo Daviess County, including 12 Major Disaster records, 24% above the Illinois county mean. Across the 55-year span, that works out to 0.3 declarations a year. Flood leads the file with 6 entries. Declaration type records the federal action taken, not every assistance program approved.

62 /100

Historical Activity Index

High historical activity

Jo Daviess County, IL · 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
12/30

16 OpenFEMA declarations, full ingest window (0.8x national county average)

County Disaster Density High
16/25

16 declarations (1.2x state county average of 13)

Major Disaster Share Very High
19/25

12 of 16 declarations are major disasters (75%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Jo Daviess County

Historical Declaration Activity

Activity Band

High

vs. Illinois Avg

+24%

State avg: 12.9

vs. National Avg

-23%

National avg: 20.7

Avg Per Year

0.3

Over 55 years

FEMA NRI 8-hazard radar - Jo Daviess County

Jo Daviess County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 25, Hurricane 8, Tornado 48, Wildfire 8, Drought 48, Heat Wave 25, Winter Storm 48. The simple mean of these eight displayed scores is 27 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 27 8-hazard mean
Jo Daviess County NRI risk profile FIPS 17085 · displayed-hazard mean 27/100
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.

FEMA Records

16

Below median

Major Disaster share

75%

Mostly major

NRI risk score

51

Relatively Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Jo Daviess 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
Landslide Relatively Moderate roughly once every 2 years
Hail Relatively Moderate an average of 3.7 times per year
Cold Wave Relatively Moderate an average of 6.8 times per year
Tornado Relatively Moderate roughly once every 2 years
Drought Relatively Moderate 8.7 modeled event-days per year
Strong Wind Relatively Moderate an average of 5.2 times per year
Riverine Flooding Relatively Low an average of 1.5 times per year
Ice Storm Relatively Low roughly once every 1 years
Heat Wave Relatively Low 4.7 modeled event-days per year
Winter Weather Relatively Low an average of 17 times per year
Earthquake Very Low roughly once every 1,379 years
Lightning Very Low an average of 40 times per year
Wildfire Very Low roughly once every 9,605 years
Hurricane Very Low roughly once every 104 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Flood 6
Snowstorm 3
Severe Storm 3
Biological 2
Hurricane 1
Tornado 1

What Flood declarations mean here

Flood is the most frequent declaration type on Jo Daviess County's record, 38% 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 - 12 75.0%

of all 16 declarations

Emergency - 4 25.0%

of all 16 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2011 1
2010 1
2008 1
2005 1
2001 1
1999 1
1993 1
1990 1
1979 1
1974 1
1973 1
1969 2
1965 1

Disaster Declarations

How the 16 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 16 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4489 COVID-19 PANDEMIC DR Biological 2020-03-26
3435 COVID-19 EM Biological 2020-03-13
1960 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2011-03-17
1935 SEVERE STORMS AND FLOODING DR Severe Storm 2010-08-19
3283 RECORD SNOW AND NEAR RECORD SNOW EM Snowstorm 2008-03-13
3230 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-07
1368 FLOODING DR Flood 2001-05-09
1278 SEVERE STORMS AND FLASH FLOODING DR Severe Storm 1999-05-28
997 SEVERE STORMS & FLOODING DR Flood 1993-07-09
871 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1990-06-22
3068 BLIZZARDS & SNOWSTORMS EM Snowstorm 1979-01-16
438 SEVERE STORMS & FLOODING DR Flood 1974-06-10
373 SEVERE STORMS & FLOODING DR Flood 1973-04-26
276 HEAVY RAINS & FLOODING DR Flood 1969-08-30
262 FLOODING DR Flood 1969-06-06
194 TORNADOES, SEVERE STORMS & FLOODING DR Tornado 1965-04-25

Storm Events in Illinois

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Jo Daviess County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 7,218 9 67 $46.0M
Hail 3,195 0 0 $27.1M
Winter Weather 1,363 14 49 $1.8M
Flood 1,221 14 11 $84.3M
Flash Flood 1,133 11 3 $1.1B

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

NFIP Flood Insurance Claims

Total Claims

343

Total Paid

$3.9M

Avg Per Claim

$11.4K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 51.3/100

Expected Annual Loss

Relatively Low

$15.6M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

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

Landslide risk is a function of slope, soil and water, so it is usually a SECOND-ORDER hazard: it is triggered by the rainfall, snowmelt, wildfire burn scars or seismic shaking that came first. That is why a county can carry high landslide exposure whose realized damage is recorded under a flood or storm declaration instead.

Worth noting for Jo Daviess County: the model and the federal record do NOT point at the same hazard. Landslide 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

Jo Daviess County's closest FEMA peer: Vinton County, OH

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Jo Daviess County. Record similarity, not a safety rating.

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 Jo Daviess County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Jo Daviess County's NFIP claims file (343 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Jo Daviess County?
The most common disaster type in Jo Daviess County is Flood, with 6 declarations. Other disaster types include Snowstorm (3), Severe Storm (3), Biological (2).
How does Jo Daviess County's FEMA declaration record compare with the Illinois average?
FEMA lists 16 declaration records for Jo Daviess County. That is 24% above the Illinois county mean of 12.9. Its count is also 23% 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 Jo Daviess County received?
Jo Daviess County has received 12 major disaster declarations, representing 75% of all 16 disaster declarations.
How many flood insurance claims has Jo Daviess County filed?
Jo Daviess County has 343 National Flood Insurance Program (NFIP) claims totaling $3.9M in payments, with an average of $11.4K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Jo Daviess County?
No. In Jo Daviess County, Landslide has the highest National Risk Index rating (Relatively Moderate), while Riverine Flooding leads Expected Annual Loss at about $8.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Jo Daviess County?
The most active year for disaster declarations in Jo Daviess County was 1969, with 2 declarations. The county has FEMA disaster data spanning 1965 to 2020.
What is the FEMA National Risk Index score for Jo Daviess County?
According to the FEMA National Risk Index, Jo Daviess County, Illinois has an overall risk score of 51.3 out of 100 (Relatively Low). Social vulnerability here rates Relatively Moderate, while community resilience comes in at Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Low, representing $15.6M in annualized losses.
Which natural hazard poses the greatest risk to Jo Daviess County?
The top hazard flagged by FEMA's NRI for Jo Daviess County as of the latest release is Landslide (risk rating: Relatively Moderate). Other significant hazards include Hail (Relatively Moderate) and Cold Wave (Relatively Moderate). FEMA's modeled event frequency puts landslide here at roughly once every 2 years. 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 Jo Daviess County

Jo Daviess County, IL has 16 federal declaration records, 24% more than the Illinois county mean of 13; its history sits in PlainHazard's high activity band.

  • Within this above-state-average declaration file, major disaster leads with 12 of 16 records; the category describes past federal action, not the next likely hazard. Illinois overview
  • The state benchmark and national rank point the same way: this count tops the Illinois mean and the totals for 27% 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.

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. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.