Monroe County, IL
FEMA National Risk Index scores, disaster declarations & hazard data
Monroe County has experienced 20 federally declared disasters since 1969, most recently Severe Storms And Flooding in 2023. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Monroe County's highest-rated hazards are heat wave, earthquake, and landslide, with its top risk rated "Relatively Moderate" by FEMA's National Risk Index. Recorded storm events have increased 27% over the past five years compared to the prior five-year period. Community vulnerability is relatively low (0th percentile nationally), indicating stronger recovery capacity than most US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. Monroe County has been designated in 20 declarations since 1969, covering 6 disaster types including flood (8), severe storm (7), biological (2).
| Year | Type | Event name |
|---|---|---|
| 2023 | Severe Storm | Severe Storms And Flooding |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Flood | Severe Storms And Flooding |
| 2013 | Flood | Severe Storms, Straight-Line Winds, And Flooding |
| 2008 | Severe Storm | Severe Storms And Flooding |
| 2007 | Severe Ice Storm | Severe Winter Storm |
| 2005 | Hurricane | Hurricane Katrina Evacuation |
| 2002 | Tornado | Severe Storms, Tornadoes And Flooding |
| 1996 | Severe Storm | Severe Storms And Flooding |
Showing the 10 most recent of 20 total declarations since 1969.
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 | 1.9 | 0 | 0 | — |
| Inland Flooding | Very Low | 32.3 | 6 | 0 | — |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Relatively Low | 84.5 | 1 | — | — |
| Heat Wave | Relatively Moderate | 87.6 | 12 | 0 | — |
| Tornado | Relatively Low | 58.3 | 10 | 0 | $250K |
| Hurricane | Very Low | 17 | 0 | 0 | — |
| Hail | Relatively Low | 60.2 | 32 | 0 | — |
| Strong Wind | Relatively Moderate | 69.7 | 0 | 0 | — |
| Winter Weather | Relatively Low | 32.6 | 0 | 0 | — |
| Ice Storm | Very Low | 17.4 | — | — | — |
| Cold Wave | Relatively Low | 49 | — | — | — |
| Lightning | Relatively Low | 39.7 | 0 | 0 | — |
| Drought | Relatively Low | 41.1 | 0 | 0 | — |
| Landslide | Relatively Low | 81.6 | 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
Monroe County ranks in the 0th percentile (Very low) 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 | 0th | Very low |
| Socioeconomic status | 0th | Very low |
| Household characteristics | 5th | Very low |
| Racial & ethnic minority status | 3rd | Very low |
| Housing type & transportation | 1st | Very low |
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 | 16th | Very Low |
| Risk to homes | 15th | Very Low |
| Buildings in direct exposure zone | 34.1% | — |
NOAA tracked 59 weather events in this county over 2016–2025: 26 in 2016–20 vs 33 in 2021–25 (+27% — frequency increasing).
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 Monroe County?
According to the FEMA National Risk Index, the highest-risk hazards in Monroe County, Illinois are heat wave, earthquake, and landslide. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has Monroe County received federal disaster declarations?
Yes. Monroe County has received 20 federal disaster declarations since 1969, including declarations in 2023. The most common disaster type on record is flood (8 declarations).
Has Monroe County had any FEMA disaster declarations in 2024, 2025, or 2026?
No federal disaster declarations have been recorded for Monroe County since the start of 2024. Its most recent declaration on record is Severe Storms And Flooding in 2023.
How does Monroe County's natural hazard risk compare to nearby counties?
Among neighboring counties, St. Louis County, MO has the highest overall natural hazard risk (Relatively High) and Ste. Genevieve County, MO has the lowest (Relatively Low). Monroe County is rated Very Low overall.
How is Monroe County's composite disaster risk index calculated?
Monroe 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. Monroe County's composite score of 42 means its overall natural hazard risk is higher than 42% of US counties.