Peoria County, IL
FEMA National Risk Index scores, disaster declarations & hazard data
Peoria County has experienced 15 federally declared disasters since 1973, most recently Covid-19 in 2020. Its overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Peoria County's highest-rated hazards are cold wave, tornado, and strong wind, with its top risk rated "Relatively High" by FEMA's National Risk Index. Recorded storm events have decreased 34% over the past five years compared to the prior five-year period.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Peoria County has been designated in 15 declarations since 1973, covering 5 disaster types including flood (5), snowstorm (5), biological (2).
| Year | Type | Event name |
|---|---|---|
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2013 | Flood | Severe Storms, Straight-Line Winds, And Flooding |
| 2011 | Snowstorm | Severe Winter Storm And Snowstorm |
| 2009 | Severe Storm | Severe Storms And Flooding |
| 2007 | Snowstorm | Snow |
| 2005 | Hurricane | Hurricane Katrina Evacuation |
| 2001 | Snowstorm | Illinois Winter Snow Storms |
| 1999 | Snowstorm | Il-Winter Storm 1/1/99 |
| 1985 | Flood | Severe Storms & Flooding |
Showing the 10 most recent of 15 total declarations since 1973.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 9.8 | 0 | 0 | — |
| Inland Flooding | Relatively Moderate | 88.7 | 17 | 0 | — |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 79.9 | — | — | — |
| Heat Wave | Relatively Moderate | 92.9 | 5 | 3 | — |
| Tornado | Relatively High | 95.8 | 10 | 0 | $1.6M |
| Hurricane | Very Low | 30.7 | 0 | 0 | — |
| Hail | Relatively High | 95.3 | 98 | 0 | $3.0M |
| Strong Wind | Relatively High | 95.7 | 0 | 0 | — |
| Winter Weather | Relatively High | 86.4 | 0 | 0 | — |
| Ice Storm | Relatively High | 89.4 | — | — | — |
| Cold Wave | Relatively High | 98.6 | — | — | — |
| Lightning | Relatively High | 88.6 | 3 | 0 | $82K |
| Drought | Relatively Moderate | 85.4 | 0 | 0 | — |
| Landslide | Relatively Moderate | 94.8 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Peoria County ranks in the 67th percentile (Moderate) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 67th | Moderate |
| Socioeconomic status | 54th | Moderate |
| Household characteristics | 64th | Moderate |
| Racial & ethnic minority status | 69th | Moderate |
| Housing type & transportation | 70th | Moderate |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 9th | Very Low |
| Risk to homes | 9th | Very Low |
| Buildings in direct exposure zone | 17.9% | — |
NOAA tracked 131 weather events in this county over 2016–2025: 79 in 2016–20 vs 52 in 2021–25 (-34% — frequency decreasing).
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in Peoria County?
According to the FEMA National Risk Index, the highest-risk hazards in Peoria County, Illinois are cold wave, tornado, and strong wind. The county's overall natural hazard risk is rated Relatively Moderate — near the middle compared to other US counties.
Has Peoria County received federal disaster declarations?
Yes. Peoria County has received 15 federal disaster declarations since 1973, including declarations in 2020. The most common disaster type on record is flood (5 declarations).
Has Peoria County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Peoria County since the start of 2024. Its most recent declaration on record is Covid-19 in 2020.
How does Peoria County's natural hazard risk compare to nearby counties?
Among neighboring counties, Tazewell County, IL has the highest overall natural hazard risk (Relatively Moderate) and Stark County, IL has the lowest (Very Low). Peoria County is rated Relatively Moderate overall.
How is Peoria County's composite disaster risk index calculated?
Peoria County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. Peoria County's composite score of 91 means its overall natural hazard risk is higher than 91% of US counties.