I-270 in Missouri: fatal crashes
From 2015 to 2024, 89 fatal crashes on I-270 in Missouri killed 97 people, the 13th most of 251 numbered roads in Missouri. In 2024 there were 12 fatal crashes and 12 deaths on the road.
An interstate running through 2 counties of Missouri. All fatal crashes in Missouri. I-270 in every state.
Deaths on I-270 in Missouri by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 12 | 12 |
| 2023 | 11 | 12 |
| 2022 | 8 | 9 |
| 2021 | 11 | 16 |
| 2020 | 10 | 10 |
| 2019 | 9 | 10 |
| 2018 | 5 | 5 |
| 2017 | 8 | 8 |
| 2016 | 7 | 7 |
| 2015 | 8 | 8 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on I-270 in Missouri: the counties with the most fatal crashes
St. Louis County had the most fatal crashes on I-270 from 2015 to 2024: 88, with 96 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | St. Louis County | 12 | 88 | 96 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen on I-270 in Missouri
89 fatal crashes on I-270 in Missouri from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is midnight to 1 am; the worst month is March.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 7.9 percent, 7 fatal crashes | 0.0 percent, 0 fatal crashes | 2.2 percent, 2 fatal crashes | 3.4 percent, 3 fatal crashes | 2.2 percent, 2 fatal crashes | 4.5 percent, 4 fatal crashes |
| Mon | 1.1 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 4.5 percent, 4 fatal crashes | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash |
| Tue | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 2.2 percent, 2 fatal crashes | 3.4 percent, 3 fatal crashes | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash |
| Wed | 3.4 percent, 3 fatal crashes | 1.1 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 2.2 percent, 2 fatal crashes |
| Thu | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash | 1.1 percent, 1 fatal crash | 1.1 percent, 1 fatal crash | 2.2 percent, 2 fatal crashes | 1.1 percent, 1 fatal crash |
| Fri | 3.4 percent, 3 fatal crashes | 3.4 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 4.5 percent, 4 fatal crashes | 2.2 percent, 2 fatal crashes | 6.7 percent, 6 fatal crashes |
| Sat | 6.7 percent, 6 fatal crashes | 2.2 percent, 2 fatal crashes | 3.4 percent, 3 fatal crashes | 3.4 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 3.4 percent, 3 fatal crashes |
By hour
By month
- Jan6.7%
- Feb5.6%
- Mar14.6%
- Apr7.9%
- May10.1%
- Jun9.0%
- Jul11.2%
- Aug5.6%
- Sep4.5%
- Oct10.1%
- Nov3.4%
- Dec11.2%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on I-270 in Missouri first hit
The first harmful event was a collision with another vehicle in 45%; a fixed object such as a tree, pole or barrier in 28%, a pedestrian in 17%, a rollover in 3.4%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 40 | 45% |
| Fixed object (tree, pole, barrier, ditch) | 25 | 28% |
| Pedestrian | 15 | 17% |
| Other | 4 | 4.5% |
| Rollover | 3 | 3.4% |
| Parked vehicle | 2 | 2.2% |
| Cyclist | 0 | 0.0% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes on I-270 in Missouri compare with the state
The largest difference from Missouri: from 2015 to 2024, 1.1% of fatal crashes on I-270 in Missouri were on rural roads, against 52% across Missouri. Also above the Missouri share: pedestrians. Below it: intersections. Shares of fatal crashes from 2015 to 2024, against the share across all of Missouri. A share is only given over 20 crashes; above or below means more than chance would give on 89 crashes.
| I-270 | Missouri | ||
|---|---|---|---|
| On rural stretches | 1.1% | 52% | below the Missouri share |
| At or near an intersection | 1.1% | 21% | below the Missouri share |
| In the dark, road unlit | 27% | 28% | about the same as the Missouri share |
| A drinking driver | 28% | 28% | about the same as the Missouri share |
| Speeding | 40% | 37% | about the same as the Missouri share |
| A distracted driver (as recorded) | 14% | 8.9% | about the same as the Missouri share |
| Occupants killed unbelted | 67% | 63% | about the same as the Missouri share |
| Hit-and-run | 3.4% | 5.2% | about the same as the Missouri share |
| A motorcycle involved | 12% | 15% | about the same as the Missouri share |
| Pedestrians among the dead | 21% | 12% | above the Missouri share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes on I-270 in Missouri
- How many fatal crashes have there been on I-270 in Missouri?
- 89 fatal crashes killed 97 people on I-270 in Missouri from 2015 to 2024. In 2024 there were 12 fatal crashes and 12 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on I-270 in Missouri do the most fatal crashes happen?
- St. Louis County had the most fatal crashes on I-270 from 2015 to 2024: 88, with 96 deaths.
Other roads in Missouri with a page
- I-435
- I-44
- I-49
- I-55
- I-70
- State Highway 100
- State Highway 13
- State Highway 21
- State Highway 30
- State Highway 32
- State Highway 43
- State Highway 5
All fatal crashes in Missouri, with every road ranked.
Where the I-270 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-270 in Missouri (filed under 8 spellings, such as "I-270", "I-270 NOR", "I-270 RP 104136", "I-270 RP 104154"). Ramps, frontage and service roads are left out. Where two routes share a road, NHTSA files each crash under one of them, so a shared stretch counts on one route only. A fatal crash is one in which someone died within 30 days. Totals in state and news reports for a road usually differ: they include ramps and frontage roads, or count from preliminary reports. The full method.