I-37: fatal crashes in every state
From 2015 to 2024, 142 fatal crashes on I-37 killed 158 people across the 1 states it runs through, the 55th most of any interstate. In 2024 there were 13 fatal crashes and 17 deaths on the road.
143 miles in all; 9.93 fatal crashes a year per 100 miles. All interstates ranked.
I-37 by state: fatal crashes, deaths and per mile
Texas has the most fatal crashes on I-37, 142 from 2015 to 2024. Each state's stretch is counted within that state; the per-mile figure needs 20 miles or more of road.
| State | Fatal crashes | Deaths | 2024 | Miles | Per 100 miles a year | |
|---|---|---|---|---|---|---|
| 1 | I-37 in Texas | 142 | 158 | 13 | 143 | 9.92 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Mileage from the FHWA Interstate route log (table 1), the only figure here not counted from FARS.
Deaths on I-37 by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 13 | 17 |
| 2023 | 13 | 13 |
| 2022 | 19 | 23 |
| 2021 | 15 | 20 |
| 2020 | 10 | 10 |
| 2019 | 18 | 18 |
| 2018 | 13 | 14 |
| 2017 | 16 | 18 |
| 2016 | 10 | 10 |
| 2015 | 15 | 15 |
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-37
Too few crashes to name a heaviest slot. The grid shows the shares; a share is only given over 20 crashes.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 5.6 percent, 8 fatal crashes | 2.1 percent, 3 fatal crashes | 1.4 percent, 2 fatal crashes | 0.7 percent, 1 fatal crashes | 4.2 percent, 6 fatal crashes | 1.4 percent, 2 fatal crashes |
| Mon | 2.1 percent, 3 fatal crashes | 0.7 percent, 1 fatal crashes | 2.8 percent, 4 fatal crashes | 0.7 percent, 1 fatal crashes | 4.2 percent, 6 fatal crashes | 3.5 percent, 5 fatal crashes |
| Tue | 1.4 percent, 2 fatal crashes | 1.4 percent, 2 fatal crashes | 1.4 percent, 2 fatal crashes | 2.8 percent, 4 fatal crashes | 1.4 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Wed | 2.1 percent, 3 fatal crashes | 1.4 percent, 2 fatal crashes | 1.4 percent, 2 fatal crashes | 1.4 percent, 2 fatal crashes | 0.7 percent, 1 fatal crashes | 3.5 percent, 5 fatal crashes |
| Thu | 2.8 percent, 4 fatal crashes | 1.4 percent, 2 fatal crashes | 2.1 percent, 3 fatal crashes | 2.8 percent, 4 fatal crashes | 3.5 percent, 5 fatal crashes | 2.1 percent, 3 fatal crashes |
| Fri | 2.8 percent, 4 fatal crashes | 0.7 percent, 1 fatal crashes | 2.1 percent, 3 fatal crashes | 2.1 percent, 3 fatal crashes | 2.1 percent, 3 fatal crashes | 4.2 percent, 6 fatal crashes |
| Sat | 6.3 percent, 9 fatal crashes | 4.2 percent, 6 fatal crashes | 2.1 percent, 3 fatal crashes | 4.2 percent, 6 fatal crashes | 2.1 percent, 3 fatal crashes | 3.5 percent, 5 fatal crashes |
By hour
By month
- Jan12.0%
- Feb8.5%
- Mar9.9%
- Apr7.0%
- May8.5%
- Jun6.3%
- Jul8.5%
- Aug9.9%
- Sep9.2%
- Oct7.0%
- Nov7.7%
- Dec5.6%
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-37 first hit
The first harmful event was a fixed object such as a tree, pole or barrier in 32%; a collision with another vehicle in 28%, a rollover in 20%, a pedestrian in 15%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Fixed object (tree, pole, barrier, ditch) | 45 | 32% |
| Collision with another vehicle | 40 | 28% |
| Rollover | 28 | 20% |
| Pedestrian | 21 | 15% |
| Parked vehicle | 5 | 3.5% |
| Other | 2 | 1.4% |
| Cyclist | 1 | 0.7% |
| 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-37 compare with the United States
A drinking driver was recorded in 30% of fatal crashes in I-37 from 2015 to 2024, above the US share of 26%; speeding in 29%, above the US share of 27%; a hit-and-run in 4.9%, below the US share of 6.5%; a driver recorded as distracted in 16%, above the US share of 8.7%; 45% of passenger-vehicle occupants killed with belt use known were unbelted, below the US share of 49%. Shares of fatal crashes from 2015 to 2024, against the share across all US roads.
| I-37 | US | ||
|---|---|---|---|
| On rural stretches | 53% | 43% | above the US share |
| In the dark, road unlit | 37% | 28% | above the US share |
| A drinking driver | 30% | 26% | above the US share |
| Speeding | 29% | 27% | above the US share |
| A distracted driver | 16% | 8.7% | above the US share |
| Occupants killed unbelted | 45% | 49% | below the US share |
| Hit-and-run | 4.9% | 6.5% | below the US share |
| A motorcycle involved | 6.3% | 16% | below the US share |
| Pedestrians among the dead | 16% | 17% | below the US 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 in I-37
- How many fatal crashes have there been on I-37?
- 142 fatal crashes killed 158 people on I-37 from 2015 to 2024, across the 1 states it runs through. In 2024 there were 13 fatal crashes and 17 deaths.
- Which state has the most fatal crashes on I-37?
- Texas, with 142 fatal crashes and 158 deaths from 2015 to 2024. Per mile, Texas's stretch has 9.92 fatal crashes a year per 100 miles.
- How dangerous is I-37 per mile?
- 9.93 fatal crashes a year per 100 miles over 2015 to 2024, on 143 miles of road. That is crashes per mile of road, not per vehicle: FARS records crashes, not traffic. I-37 ranks 55th of 68 interstates on this site by fatal crashes.
Other interstates
- I-10 3,274
- I-95 2,778
- I-40 2,208
- I-75 2,062
- I-20 1,789
- I-80 1,774
- I-5 1,745
- I-35 1,531
- I-70 1,354
- I-15 1,188
- I-90 996
- I-85 922
The deadliest roads in America, every interstate ranked.
Where the I-37 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as I-37, in every state, with ramps, frontage and service roads left out. A fatal crash is one in which someone died within 30 days. The full method.