Motorcycle crash statistics and hotspots in Antioch, CA
- motorcycle crashes, 2021–2026
- 106
- motorcycle crashes, 2021–2026
- serious or fatal
- 30
- serious or fatal
- fatal
- 7
- fatal
- street with the most
- SR-4
- street with the most
Where they cluster
All 7 spots, explainedIs Antioch safe to ride a motorcycle?
This page covers traffic crashes, not crime. We don't rate cities as safe or unsafe: crash counts can't say how risky a street is, and busy streets have more crashes partly because more people use them. What the records show: 106 motorcycle crashes were reported in Antioch from 2021–2026, 30 of them serious or fatal (7 fatal). The most were at SR-4 & Somersville Rd (6). 28% involved no other vehicle, usually running wide or losing grip. 16% involved a car turning left across the rider.
Where to look next
How motorcyclists crash in Antioch
- 28% involved no other vehicle, usually running wide or losing grip.
- 16% involved a car turning left across the rider.
- 24% happened after dark.
What the reports show about motorcycle crashes in Antioch
- 24% (California: 25%) of crashes happened after dark.
- 47% (California: 80%) were on roads posted 40 mph or faster.
- 28% (California: 28%) left someone seriously hurt or killed.
- The busiest hour was 3 p.m. (California: 5 p.m.).
- 1% (California: 2%) were on a wet road, as the report records it.
Set against all motorcycle crashes in California, 2021–2026. Without traffic counts these can't say how risky a street is.
Where motorcycle crashes cluster
Spots with 3 or more reported crashes within about 250 m, worst first.
- 016 crashes · 2 serious or fatal · 1 fatal
SR-4 & Somersville Rd
Falls and fixed objects
3 of 6 crashes were a fall or hitting an object, with no other vehicle involved. 50% happened after dark. Traffic is posted at about 65 mph.
- Enter slower than feels necessary and watch for gravel, sand and diesel. Look through the bend.
- Wear bright or reflective gear and use your high beam where you can.
- Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
- 024 crashes · 3 serious or fatal · 1 fatal
10th St & F St
A mix of crash types
- No single crash pattern stands out here. Ride within your sight distance and keep extra space.
- 036 crashes · 1 serious or fatal · 1 fatal
10th St & L St
Side-impact crashes at the junction
3 of 6 crashes were broadside: a vehicle hit at an angle, usually a driver pulling out of a side street or driveway, turning across, or running the signal.
- Cover your brakes through the junction and watch the front wheels of cars waiting to pull out or turn left. Drivers misjudge how fast a motorcycle is coming.
- 043 crashes · 2 serious or fatal
Lone Tree Way & Shady Willow Ln
A mix of crash types
Traffic is posted at about 45 mph.
- No single crash pattern stands out here. Ride within your sight distance and keep extra space.
- Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
- 053 crashes · 2 serious or fatal
SR-4 & G St
A mix of crash types
Traffic is posted at about 65 mph.
- No single crash pattern stands out here. Ride within your sight distance and keep extra space.
- Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
- 063 crashes
Auto Center Dr & Sycamore Dr
Side-impact crashes at the junction
2 of 3 crashes were broadside: a vehicle hit at an angle, usually a driver pulling out of a side street or driveway, turning across, or running the signal.
- Cover your brakes through the junction and watch the front wheels of cars waiting to pull out or turn left. Drivers misjudge how fast a motorcycle is coming.
- 073 crashes
SR-4 & Century Blvd
Falls and fixed objects
3 of 3 crashes were a fall or hitting an object, with no other vehicle involved. Traffic is posted at about 65 mph.
- Enter slower than feels necessary and watch for gravel, sand and diesel. Look through the bend.
- Traffic is fast here: at this speed you cross a junction in about a second, so scan early.
Streets with the most motorcycle crashes in Antioch
| Street | Crashes | Serious/fatal |
|---|---|---|
| SR-4 | 23 | 4 |
| Lone Tree Way | 14 | 3 |
| 10th St | 8 | 5 |
| Hillcrest Ave | 5 | 2 |
| 18th St | 5 | 2 |
| Deer Valley Rd | 4 | 2 |
| Wilbur Ave | 4 | 1 |
| Sycamore Dr | 4 | 1 |
| Prewett Ranch Dr | 3 | 1 |
| James Donlon Blvd | 3 | 0 |
Reported motorcycle crashes, 2021–2026, counted by the street each police report names first, so a crash at a corner counts toward one of its two streets. Long, busy streets collect more crashes partly because more people use them.
What the police reports say drivers did in Antioch
| A driver… | Crashes | |
|---|---|---|
| drove too fast for conditions | 9 | |
| turned or changed lanes when it wasn't clear | 7 | |
| didn't yield pulling out of a driveway or alley | 5 | |
| didn't yield while turning left | 4 | |
| drifted out of the lane or onto the wrong side | 3 | |
| ran a red light | 2 | |
| drove under the influence | 2 | |
| ran a stop sign or didn't yield after stopping | 2 |
The other vehicle, where the report names one: 42 cars, 9 SUVs, 6 pickup trucks, 2 minivans and 2 truck or semis. In 3 crashes the report says the other driver had been drinking or was on drugs.
Reported motorcycle crashes, 2021–2026. The officer names one party and one Vehicle Code section as the main cause of each crash; these are the crashes where that party was a driver. It is the officer's reading at the scene, not a court's finding, and many reports name the person on foot or on a bike instead, which we don't list.
Motorcycle crashes in Antioch by year
| Year | Crashes | Serious/fatal | |
|---|---|---|---|
| 2021 | 15 | 0 | |
| 2022 | 22 | 5 | |
| 2023 | 13 | 4 | |
| 2024 | 28 | 7 | |
| 2025 | 19 | 11 | |
| 2026to Oct 19 | 9 | 3 |
2026 runs to Oct 19, the newest report in the data, and police reports keep arriving for months, so it isn't a full year.
Common questions about Antioch
- Where do the most motorcycle crashes happen in Antioch?
- The worst spot is SR-4 & Somersville Rd, with 6 reported motorcycle crashes from 2021–2026, 2 of them serious or fatal. Next are 10th St & F St (4) and 10th St & L St (6).
- How many motorcyclists were killed in Antioch?
- 7 crashes killed someone in 106 reported motorcycle crashes in Antioch from 2021–2026, and 30 left someone seriously hurt or killed.
- How do motorcyclists usually crash in Antioch?
- 28% involved no other vehicle, usually running wide or losing grip. 16% involved a car turning left across the rider. 24% happened after dark.
- When and where do motorcycle crashes happen in Antioch, compared with California?
- Of 106 reported motorcycle crashes in Antioch from 2021–2026: 24% (California: 25%) of crashes happened after dark. 47% (California: 80%) were on roads posted 40 mph or faster. 28% (California: 28%) left someone seriously hurt or killed. The busiest hour was 3 p.m. (California: 5 p.m.). 1% (California: 2%) were on a wet road, as the report records it.
- Which streets in Antioch have the most motorcycle crashes?
- By the street each police report names first, 2021–2026: SR-4 (23), Lone Tree Way (14), 10th St (8), Hillcrest Ave (5), 18th St (5). Long, busy streets collect more crashes partly because more people use them.
- How many motorcycle crashes happen in Antioch each year?
- Reported motorcycle crashes with map locations: 2021: 15, 2022: 22, 2023: 13, 2024: 28, 2025: 19, 2026 (through Oct 19): 9. The latest year can rise as late reports come in.
- Where does this data come from?
- Police crash reports in the California Crash Reporting System (CCRS), published by the state on data.ca.gov. A report with no coordinates is placed at the intersection its street names give; reports with neither are not counted, so the real totals are higher.
Places to ride to near Antioch
Nearby cities
Source: California Crash Reporting System (CCRS), 2021–2026. A report with no coordinates is placed at the intersection its street names give; reports with neither are not counted, so these numbers are lower than the real total. Freeway crashes are included: many motorcycle crashes in cities happen on them. Busy streets show more crashes partly because more people use them. Data last rebuilt 2026-10-22. How the data works.