Ozaukee County, Wisconsin: hazard risk
FEMA rates Ozaukee County's overall risk Relatively Low (score 50.3 of 100, higher than 50% of rated U.S. counties). Its storm record holds 670 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 | Relatively Moderate | 82.8 | $8.9M |
| Hail | Relatively Low | 71.2 | $1.2M |
| Tornado | Relatively Low | 59.3 | $3.5M |
| Riverine Flooding | Relatively Low | 58.3 | $17M |
| Heat Wave | Relatively Low | 56.0 | $994K |
| Winter Weather | Relatively Low | 44.2 | $107K |
| Lightning | Relatively Low | 41.4 | $344K |
| Strong Wind | Relatively Low | 31.0 | $608K |
| Coastal Flooding | Very Low | 31.0 | $11K |
| Earthquake | Very Low | 26.4 | $103K |
| Drought | Very Low | 21.5 | $12K |
| Ice Storm | Very Low | 20.6 | $34K |
| Wildfire | Very Low | 19.5 | $15K |
| Landslide | Very Low | 15.4 | $135 |
| Hurricane | Very Low | 7.5 | $2K |
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. |
|---|---|---|---|---|---|
| Winter storms | 215 | 1 | $84K | 2nd of 72 | 18th of 3,077 |
| Severe thunderstorm wind | 85 | 0 | $7.6M | 10th of 72 | 828th of 3,080 |
| Hail | 71 | 0 | $9.4M | 6th of 72 | 530th of 3,080 |
| High wind and dust storms | 55 | 0 | $1.3M | 3rd of 72 | 99th of 3,080 |
| Floods | 45 | 1 | $47M | 5th of 72 | 440th of 3,080 |
| Heat | 35 | 0 | – | 3rd of 72 | 176th of 3,076 |
| Extreme cold | 34 | 0 | $3K | 2nd of 72 | 82nd of 3,076 |
| Lightning | 19 | 0 | $2.7M | 4th of 72 | 68th of 3,080 |
| Drought | 17 | 0 | $235K | 1st of 72 | 570th of 3,063 |
| Heavy rain | 5 | 0 | $44K | 11th of 72 | 426th of 3,080 |
| Tornadoes | 4 | 0 | $25M | 60th of 72 | 2309th of 3,080 |
| Rip currents and high surf | 2 | 2 | – | 6th of 72 | 146th of 2,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Ozaukee County record: every hazard by year and month, the deadliest events and FEMA's declarations.