Quick answer
According to crimebycity.com's analysis of NHTSA Fatality Analysis Reporting System data, West Allis, WI recorded 22 traffic deaths in 20 fatal crashes from 2020 to 2024 — 7.5 deaths per 100,000 residents per year vs the US average of 12.3. Its Road Danger Score of 47/100 means a higher traffic-fatality rate than about 47% of ranked US cities (#6 of 39 in Wisconsin, most dangerous first).
Road Danger Score
Traffic Deaths per 100K
Fatal Crashes 2020–2024
How Dangerous Are the Roads in West Allis, Wisconsin?
West Allis has a Road Danger Score of 47/100 (Near-Average Road Danger). Over the five years from 2020 to 2024, federal crash data recorded 20 fatal motor-vehicle crashes in the city, killing 22 people — 7.5 traffic deaths per 100,000 residents per year, below the national average of 12.3.
West Allis ranks #6 out of 39 ranked cities in Wisconsin and #1,143 out of 2,153 nationally for road danger (most dangerous first). The score is a percentile: a higher traffic-fatality rate than about 47% of ranked US cities.
The most distinctive factor in West Allis's fatal crashes: speeding involved — 60% of fatal crashes, versus 28% nationally.
Traffic deaths in West Allis fell 0% comparing 2020–2021 with 2023–2024.
What’s Behind West Allis’s Fatal Crashes (2020–2024)
Share of the city’s 20 fatal crashes where each factor was recorded. Factors overlap, so shares don’t sum to 100%.
| Crash Factor | Fatal Crashes | West Allis | National Avg |
|---|---|---|---|
| Drinking driver involved | 7 | 35.0% | 25.9% |
| Speeding involved | 12 | 60.0% | 28.2% |
| Pedestrian or cyclist involved | 8 | 40.0% | 22.5% |
| Dark / nighttime conditions | 9 | 45.0% | 49.8% |
West Allis Traffic Deaths by Year
Annual traffic fatalities in West Allis, Wisconsin from NHTSA FARS. Single-year swings are normal in smaller cities; the Road Danger Score uses the full 5-year window.
| Year | Traffic Deaths |
|---|---|
| 2024 | 4 |
| 2023 | 3 |
| 2022 | 8 |
| 2021 | 2 |
| 2020 | 5 |
Frequently Asked Questions
How many fatal car accidents happen in West Allis, Wisconsin?
According to NHTSA FARS data, West Allis recorded 20 fatal car accidents between 2020 and 2024, resulting in 22 traffic deaths — an average of 4.4 deaths per year.
How dangerous are the roads in West Allis?
West Allis has a Road Danger Score of 47/100, meaning its traffic-fatality rate is higher than about 47% of ranked US cities. The city averages 7.5 traffic deaths per 100,000 residents per year, compared to the US average of 12.3.
What causes fatal car accidents in West Allis?
Of West Allis's fatal crashes in 2020–2024, 35% involved a drinking driver, 60% involved speeding, 40% involved a pedestrian or cyclist, and 45% happened in dark conditions.
How many people die in car accidents in West Allis each year?
An average of 4.4 people per year died in car accidents in West Allis across 2020–2024 (22 total), based on the federal Fatality Analysis Reporting System.
Is driving in West Allis more dangerous than in other Wisconsin cities?
West Allis ranks #6 of 39 ranked Wisconsin cities for road danger (most dangerous first) and #1,143 of 2,153 nationally.