Quick answer
According to crimebycity.com's analysis of NHTSA Fatality Analysis Reporting System data, Mount Prospect, IL recorded 13 traffic deaths in 11 fatal crashes from 2020 to 2024 — 4.9 deaths per 100,000 residents per year vs the US average of 12.3. Its Road Danger Score of 25/100 means a higher traffic-fatality rate than about 25% of ranked US cities (#108 of 147 in Illinois, most dangerous first).
Road Danger Score
Traffic Deaths per 100K
Fatal Crashes 2020–2024
How Dangerous Are the Roads in Mount Prospect, Illinois?
Mount Prospect has a Road Danger Score of 25/100 (Safer Roads Than Most Cities). Over the five years from 2020 to 2024, federal crash data recorded 11 fatal motor-vehicle crashes in the city, killing 13 people — 4.9 traffic deaths per 100,000 residents per year, below the national average of 12.3.
Mount Prospect ranks #108 out of 147 ranked cities in Illinois and #1,621 out of 2,153 nationally for road danger (most dangerous first). The score is a percentile: a higher traffic-fatality rate than about 25% of ranked US cities.
Traffic deaths in Mount Prospect fell 17% comparing 2020–2021 with 2023–2024.
What’s Behind Mount Prospect’s Fatal Crashes (2020–2024)
Share of the city’s 11 fatal crashes where each factor was recorded. Factors overlap, so shares don’t sum to 100%.
| Crash Factor | Fatal Crashes | Mount Prospect | National Avg |
|---|---|---|---|
| Drinking driver involved | 1 | 9.1% | 25.9% |
| Speeding involved | 3 | 27.3% | 28.2% |
| Pedestrian or cyclist involved | 2 | 18.2% | 22.5% |
| Dark / nighttime conditions | 4 | 36.4% | 49.8% |
Mount Prospect Traffic Deaths by Year
Annual traffic fatalities in Mount Prospect, Illinois 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 | 1 |
| 2022 | 2 |
| 2021 | 5 |
| 2020 | 1 |
Frequently Asked Questions
How many fatal car accidents happen in Mount Prospect, Illinois?
According to NHTSA FARS data, Mount Prospect recorded 11 fatal car accidents between 2020 and 2024, resulting in 13 traffic deaths — an average of 2.6 deaths per year.
How dangerous are the roads in Mount Prospect?
Mount Prospect has a Road Danger Score of 25/100, meaning its traffic-fatality rate is higher than about 25% of ranked US cities. The city averages 4.9 traffic deaths per 100,000 residents per year, compared to the US average of 12.3.
What causes fatal car accidents in Mount Prospect?
Of Mount Prospect's fatal crashes in 2020–2024, 9% involved a drinking driver, 27% involved speeding, 18% involved a pedestrian or cyclist, and 36% happened in dark conditions.
How many people die in car accidents in Mount Prospect each year?
An average of 2.6 people per year died in car accidents in Mount Prospect across 2020–2024 (13 total), based on the federal Fatality Analysis Reporting System.
Is driving in Mount Prospect more dangerous than in other Illinois cities?
Mount Prospect ranks #108 of 147 ranked Illinois cities for road danger (most dangerous first) and #1,621 of 2,153 nationally.