State Highway 642 in South Carolina: fatal crashes
From 2015 to 2024, 53 fatal crashes on State Highway 642 in South Carolina killed 61 people, the 36th most of 806 numbered roads in South Carolina. In 2024 there were 8 fatal crashes and 11 deaths on the road.
A state highway running through 2 counties of South Carolina. All fatal crashes in South Carolina.
Deaths on State Highway 642 in South Carolina by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 8 | 11 |
| 2023 | 7 | 8 |
| 2022 | 6 | 7 |
| 2021 | 7 | 8 |
| 2020 | 2 | 2 |
| 2019 | 6 | 6 |
| 2018 | 4 | 4 |
| 2017 | 6 | 8 |
| 2016 | 4 | 4 |
| 2015 | 3 | 3 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on State Highway 642 in South Carolina: the counties with the most fatal crashes
Charleston County had the most fatal crashes on State Highway 642 from 2015 to 2024: 36, with 41 deaths. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Charleston County | 4 | 36 | 41 |
| 2 | Dorchester County | 4 | 17 | 20 |
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 State Highway 642 in South Carolina
53 fatal crashes on State Highway 642 in South Carolina 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 7 pm to 8 pm; the worst month is August.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 3.8 percent, 2 fatal crashes | 1.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 7.5 percent, 4 fatal crashes | 0.0 percent, 0 fatal crashes |
| Mon | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 7.5 percent, 4 fatal crashes | 5.7 percent, 3 fatal crashes |
| Tue | 1.9 percent, 1 fatal crash | 1.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 5.7 percent, 3 fatal crashes | 3.8 percent, 2 fatal crashes |
| Wed | 3.8 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 1.9 percent, 1 fatal crash | 3.8 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Thu | 0.0 percent, 0 fatal crashes | 3.8 percent, 2 fatal crashes | 3.8 percent, 2 fatal crashes | 3.8 percent, 2 fatal crashes | 3.8 percent, 2 fatal crashes | 3.8 percent, 2 fatal crashes |
| Fri | 7.5 percent, 4 fatal crashes | 1.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes | 0.0 percent, 0 fatal crashes |
| Sat | 3.8 percent, 2 fatal crashes | 3.8 percent, 2 fatal crashes | 1.9 percent, 1 fatal crash | 0.0 percent, 0 fatal crashes | 3.8 percent, 2 fatal crashes | 7.5 percent, 4 fatal crashes |
By hour
By month
- Jan3.8%
- Feb7.5%
- Mar11.3%
- Apr9.4%
- May11.3%
- Jun7.5%
- Jul11.3%
- Aug13.2%
- Sep5.7%
- Oct13.2%
- Nov1.9%
- Dec3.8%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on State Highway 642 in South Carolina first hit
The first harmful event was a collision with another vehicle in 47%; a pedestrian in 40%, a cyclist in 3.8%, a rollover in 3.8%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 25 | 47% |
| Pedestrian | 21 | 40% |
| Cyclist | 2 | 3.8% |
| Rollover | 2 | 3.8% |
| Fixed object (tree, pole, barrier, ditch) | 2 | 3.8% |
| Other | 1 | 1.9% |
| Parked vehicle | 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 State Highway 642 in South Carolina compare with the state
The largest difference from South Carolina: from 2015 to 2024, 11% of fatal crashes on State Highway 642 in South Carolina were on rural roads, against 59% across South Carolina. Also above the South Carolina share: intersections, hit-and-runs and pedestrians. Below it: unlit roads at night, speeding and unbelted occupants. Shares of fatal crashes from 2015 to 2024, against the share across all of South Carolina. A share is only given over 20 crashes; above or below means more than chance would give on 53 crashes.
| State Highway 642 | South Carolina | ||
|---|---|---|---|
| On rural stretches | 11% | 59% | below the South Carolina share |
| At or near an intersection | 34% | 20% | above the South Carolina share |
| In the dark, road unlit | 17% | 37% | below the South Carolina share |
| A drinking driver | 28% | 32% | about the same as the South Carolina share |
| Speeding | 25% | 40% | below the South Carolina share |
| A distracted driver (as recorded) | 1.9% | 5.0% | about the same as the South Carolina share |
| Occupants killed unbelted | 35% | 53% | below the South Carolina share |
| Hit-and-run | 13% | 4.2% | above the South Carolina share |
| A motorcycle involved | 11% | 16% | about the same as the South Carolina share |
| Pedestrians among the dead | 34% | 16% | above the South Carolina 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 State Highway 642 in South Carolina
- How many fatal crashes have there been on State Highway 642 in South Carolina?
- 53 fatal crashes killed 61 people on State Highway 642 in South Carolina from 2015 to 2024. In 2024 there were 8 fatal crashes and 11 deaths. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- Where on State Highway 642 in South Carolina do the most fatal crashes happen?
- Charleston County had the most fatal crashes on State Highway 642 from 2015 to 2024: 36, with 41 deaths. Dorchester County was second with 17.
Other roads in South Carolina with a page
- I-20
- I-26
- I-385
- I-77
- I-85
- I-95
- State Highway 11
- State Highway 14
- State Highway 19
- State Highway 20
- State Highway 28
- State Highway 291
All fatal crashes in South Carolina, with every road ranked.
Where the State Highway 642 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as State Highway 642 in South Carolina (filed under 3 spellings, such as "SR-642", "SR-642 DORCHESTER RD", "SR-642 DORECHESTER RD"). 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.