States › Indiana › Routes › US Route 421
US Route 421
Fatal crashes 2015–2024 52Deaths 57Counties 10Latest data year 2024
FARS data are based on police crash reports and other sources; the drunk-driving measure is based on the highest BAC of any driver in the crash. Latest data year: 2024. The route is the trafficway recorded for each crash (FARS TWAY_ID); the same route number in another state has its own page.
Between 2015 and 2024, FARS records 52 fatal crashes on US Route 421 in Indiana, with 57 deaths.
That is 0.6% of the 8,116 fatal crashes in Indiana over the same years. The ten-year crash count fell 22% from 67 in 2005–2014 to 52 in 2015–2024.
The crashes were concentrated in LaPorte County (16), Ripley County (7) and Clinton County (6) and 7 other counties.
28.8% of the crashes had a driver reported as drinking (Indiana: 19.6%) and 23.1% had a speeding-related driver (25.7%); pedestrians were 5.3% and motorcyclists 14.0% of those killed.
Fatal crashes per year
Route identification in FARS is consistent from 2000; earlier years are not shown. Shaded band: the ten-year window used for the shares below.
Compared with all fatal crashes in Indiana
| Measure | US Route 421 | Indiana |
|---|---|---|
| Fatal crashes, 2015–2024 | 52 | 8,116 |
| Deaths, 2015–2024 | 57 | 8,773 |
| Deaths per fatal crash | 1.1 | 1.1 |
| Share of state fatal crashes | 0.6% | 100% |
| Change vs previous ten years | -22% | +10% |
Factor shares
Counties along the route
| # | County | Fatal crashes on US-421 | Share of route | County total, all roads |
|---|---|---|---|---|
| 1 | LaPorte County | 16 | 31% | 170 |
| 2 | Ripley County | 7 | 13% | 44 |
| 3 | Clinton County | 6 | 12% | 61 |
| 4 | Carroll County | 5 | 10% | 34 |
| 5 | Decatur County | 4 | 8% | 47 |
| 6 | Jefferson County | 4 | 8% | 54 |
| 7 | Pulaski County | 4 | 8% | 37 |
| 8 | White County | 4 | 8% | 59 |
| 9 | Boone County | 1 | 2% | 76 |
| 10 | Starke County | 1 | 2% | 42 |
Hour of day
Share of fatal crashes on US Route 421 beginning in each hour, 2015–2024; tick marks the Indiana share for all roads.
Other routes in Indiana
- Interstate 65 169
- Interstate 80 112
- US Route 31 101
- Interstate 70 96
- US Route 20 91
- US Route 41 88
- Interstate 69 88
- State Route 37 73
- Interstate 465 65
- US Route 231 61
- US Route 30 57
- US Route 50 57
All routes and counties in Indiana
Questions and answers
How many fatal crashes have there been on US Route 421 in Indiana?
52 fatal crashes with 57 deaths over 2015–2024, per NHTSA's FARS. The route is the trafficway recorded for the crash; the same numbered route in another state has its own page.
Which counties along US Route 421 had the most fatal crashes?
LaPorte County (16), Ripley County (7), Clinton County (6), Carroll County (5) and Decatur County (4).
What share of crashes on US Route 421 involved alcohol or speeding?
28.8% had a driver reported as drinking and 23.1% a speeding-related driver, against 19.6% and 25.7% for all fatal crashes in Indiana.
When do fatal crashes happen on US Route 421?
38.5% of the crashes were between 6pm and 6am. The hour chart on this page shows the full distribution.
Provenance
Source: NHTSA Fatality Analysis Reporting System, annual national CSV files 2000–2024 (accident, vehicle and person tables), public domain. Route pages are built for signed Interstate, US and state routes with at least 20 fatal crashes in 2015–2024. Data through 31 Dec 2024; generated 30 Sep 2026. See methodology and corrections.