DuPage County, Illinois: hazard risk
FEMA rates DuPage County's overall risk Relatively High (score 97.6 of 100, higher than 97% of rated U.S. counties); 6 of its 14 hazards are rated Relatively High or Very High, led by cold wave, tornado, strong wind. Its storm record holds 1,203 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Cold Wave | Very High | 99.7 | $72M |
| Tornado | Very High | 99.3 | $67M |
| Strong Wind | Very High | 99.2 | $11M |
| Riverine Flooding | Relatively High | 98.0 | $195M |
| Lightning | Relatively High | 96.1 | $2.7M |
| Winter Weather | Relatively High | 88.4 | $452K |
| Heat Wave | Relatively Moderate | 93.3 | $5.6M |
| Earthquake | Relatively Moderate | 93.2 | $11M |
| Ice Storm | Relatively Moderate | 74.0 | $339K |
| Hail | Relatively Low | 53.8 | $382K |
| Wildfire | Very Low | 33.7 | $22K |
| Landslide | Very Low | 33.0 | $479 |
| Hurricane | Very Low | 25.1 | $12K |
| Drought | Very Low | 23.2 | $11K |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Severe thunderstorm wind | 513 | 4 | $9.0M | 1st of 102 | 90th of 3,080 |
| Hail | 255 | 0 | $34K | 1st of 102 | 43rd of 3,080 |
| Floods | 148 | 2 | $40M | 10th of 102 | 81st of 3,080 |
| Winter storms | 93 | 4 | $392K | 16th of 102 | 386th of 3,077 |
| High wind and dust storms | 58 | 0 | $229K | 18th of 102 | 254th of 3,080 |
| Tornadoes | 48 | 0 | $86M | 1st of 102 | 29th of 3,080 |
| Extreme cold | 28 | 3 | – | 23rd of 102 | 212th of 3,076 |
| Lightning | 19 | 2 | $2.2M | 1st of 102 | 80th of 3,080 |
| Drought | 15 | 0 | – | 25th of 102 | 1039th of 3,063 |
| Heat | 12 | 0 | – | 46th of 102 | 665th of 3,076 |
| Heavy rain | 9 | 0 | – | 12th of 102 | 321st of 3,080 |
| Wildfires | 1 | 0 | – | 5th of 102 | 700th of 2,972 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full DuPage County record: every hazard by year and month, the deadliest events and FEMA's declarations.