US 521 in South Carolina: fatal crashes
From 2015 to 2024, 73 fatal crashes on US 521 in South Carolina killed 81 people. In 2024 there were 5 fatal crashes and 5 deaths on the road.
An US route running through 6 counties of South Carolina. All fatal crashes in South Carolina.
Deaths on US 521 in South Carolina by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 5 | 5 |
| 2023 | 11 | 12 |
| 2022 | 11 | 14 |
| 2021 | 9 | 9 |
| 2020 | 7 | 8 |
| 2019 | 8 | 11 |
| 2018 | 5 | 5 |
| 2017 | 3 | 3 |
| 2016 | 7 | 7 |
| 2015 | 7 | 7 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Where on US 521 in South Carolina: the counties with the most fatal crashes
Lancaster County had the most fatal crashes on US 521 from 2015 to 2024: 26, with 30 deaths. Lancaster, Sumter and Kershaw counties together held 77% of fatal crashes in US 521 in South Carolina from 2015 to 2024; the 5 listed held 95%. Counties are listed from 5 fatal crashes.
| County | 2024 | 2015 to 2024 | Deaths | |
|---|---|---|---|---|
| 1 | Lancaster County | 2 | 26 | 30 |
| 2 | Sumter County | 2 | 20 | 20 |
| 3 | Kershaw County | 0 | 10 | 11 |
| 4 | Clarendon County | 1 | 7 | 9 |
| 5 | Williamsburg County | 0 | 6 | 6 |
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 US 521 in South Carolina
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 | 4.1 percent, 3 fatal crashes | 4.1 percent, 3 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes |
| Mon | 1.4 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 2.7 percent, 2 fatal crashes | 1.4 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes |
| Tue | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 0.0 percent, 0 fatal crashes | 5.5 percent, 4 fatal crashes | 2.7 percent, 2 fatal crashes | 0.0 percent, 0 fatal crashes |
| Wed | 0.0 percent, 0 fatal crashes | 5.5 percent, 4 fatal crashes | 0.0 percent, 0 fatal crashes | 1.4 percent, 1 fatal crashes | 4.1 percent, 3 fatal crashes | 1.4 percent, 1 fatal crashes |
| Thu | 4.1 percent, 3 fatal crashes | 2.7 percent, 2 fatal crashes | 4.1 percent, 3 fatal crashes | 6.8 percent, 5 fatal crashes | 1.4 percent, 1 fatal crashes | 2.7 percent, 2 fatal crashes |
| Fri | 2.7 percent, 2 fatal crashes | 4.1 percent, 3 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 5.5 percent, 4 fatal crashes |
| Sat | 9.6 percent, 7 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes | 6.8 percent, 5 fatal crashes | 1.4 percent, 1 fatal crashes | 1.4 percent, 1 fatal crashes |
By hour
By month
- Jan8.2%
- Feb11.0%
- Mar9.6%
- Apr2.7%
- May9.6%
- Jun15.1%
- Jul5.5%
- Aug2.7%
- Sep9.6%
- Oct12.3%
- Nov6.8%
- Dec6.8%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes on US 521 in South Carolina first hit
The first harmful event was a collision with another vehicle in most fatal crashes, 59%; a fixed object such as a tree, pole or barrier in 26%, a pedestrian in 8.2%, a cyclist in 2.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 43 | 59% |
| Fixed object (tree, pole, barrier, ditch) | 19 | 26% |
| Pedestrian | 6 | 8.2% |
| Cyclist | 2 | 2.7% |
| Rollover | 2 | 2.7% |
| Parked vehicle | 1 | 1.4% |
| Other | 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 US 521 in South Carolina compare with the state
A drinking driver was recorded in 32% of fatal crashes in US 521 in South Carolina from 2015 to 2024, about the South Carolina share; speeding in 30%, below the South Carolina share of 40%; a hit-and-run in 0.0%, below the South Carolina share of 4.2%; a driver recorded as distracted in 5.5%, about the South Carolina share; 47% of passenger-vehicle occupants killed with belt use known were unbelted, below the South Carolina share of 53%. Shares of fatal crashes from 2015 to 2024, against the share across all of South Carolina. A share is only given over 20 crashes.
| US 521 | South Carolina | ||
|---|---|---|---|
| On rural stretches | 66% | 59% | above the South Carolina share |
| At or near an intersection | 26% | 20% | above the South Carolina share |
| In the dark, road unlit | 30% | 37% | below the South Carolina share |
| A drinking driver | 32% | 32% | about the same as the South Carolina share |
| Speeding | 30% | 40% | below the South Carolina share |
| A distracted driver (as recorded) | 5.5% | 5.0% | about the same as the South Carolina share |
| Occupants killed unbelted | 47% | 53% | below the South Carolina share |
| Hit-and-run | 0.0% | 4.2% | below the South Carolina share |
| A motorcycle involved | 15% | 16% | below the South Carolina share |
| Pedestrians among the dead | 8.6% | 16% | below 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 in US 521 in South Carolina
- How many fatal crashes have there been on US 521 in South Carolina?
- 73 fatal crashes killed 81 people on US 521 in South Carolina from 2015 to 2024. In 2024 there were 5 fatal crashes and 5 deaths.
- Where on US 521 in South Carolina do the most fatal crashes happen?
- Lancaster County had the most fatal crashes on US 521 from 2015 to 2024: 26, with 30 deaths. Sumter County was second with 20.
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 US 521 numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash whose road NHTSA filed as US 521 in South Carolina (filed under 16 spellings, such as "US-521", "US-521 AMDEN HWY", "US-521 CAMDEN HWY", "US-521 CHARLOTTE HWY"). Ramps, frontage and service roads are left out. A fatal crash is one in which someone died within 30 days. The full method.