Bike crash statistics and hotspots in Diamond Bar, CA
- bike crashes, 2021–2026
- 30
- bike crashes, 2021–2026
- serious or fatal
- 2
- serious or fatal
- fatal
- 0
- fatal
- street with the most
- Diamond Bar Blvd
- street with the most
Is Diamond Bar safe to ride a bike?
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: 30 bike crashes were reported in Diamond Bar from 2021–2026, 2 of them serious or fatal. The most were at Diamond Bar Blvd & Palomino Dr (5). 50% were side-impact crashes at junctions (drivers pulling out or turning across). 13% were sideswipes (close passes, right hooks, car doors).
Where to look next
How people on bikes get hit in Diamond Bar
- 50% were side-impact crashes at junctions (drivers pulling out or turning across).
- 13% were sideswipes (close passes, right hooks, car doors).
- 13% were riders hit from behind.
- 17% happened after dark.
- 10% were hit-and-run.
What the reports show about bike crashes in Diamond Bar
- 17% (California: 21%) of crashes happened after dark.
- 7% (California: 13%) left someone seriously hurt or killed.
- The busiest hour was 3 p.m. (California: 3 p.m.).
- 7% (California: 3%) were on a wet road, as the report records it.
Set against all bike crashes in California, 2021–2026. Without traffic counts these can't say how risky a street is.
Where bike crashes cluster
Spots with 3 or more reported crashes within about 250 m, worst first.
- 015 crashes
Diamond Bar Blvd & Palomino Dr
Side-impact crashes at the junction
3 of 5 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. 40% happened after dark. Traffic is posted at about 65 mph.
- Slow down approaching the junction, watch drivers' front wheels at side streets and driveways, and don't assume a driver waiting to turn has seen you.
- Use a front and rear light, even on lit streets.
- Traffic is fast here. A quieter parallel street is often worth the extra minutes.
Streets with the most bike crashes in Diamond Bar
| Street | Crashes | Serious/fatal |
|---|---|---|
| Diamond Bar Blvd | 6 | 1 |
| Pathfinder Rd | 5 | 0 |
| Golden Springs Dr | 4 | 0 |
Reported bike 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 Diamond Bar
| A driver… | Crashes | |
|---|---|---|
| didn't yield while turning left | 3 | |
| ran a stop sign or didn't yield after stopping | 2 | |
| turned from the wrong position | 2 | |
| started or backed up when it wasn't clear | 2 | |
| didn't yield pulling out of a driveway or alley | 2 | |
| turned or changed lanes when it wasn't clear | 2 |
The other vehicle, where the report names one: 19 cars, 4 SUVs, 1 minivan, 1 pickup truck and 1 bus.
Reported bike 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.
Bike crashes in Diamond Bar by year
| Year | Crashes | Serious/fatal | |
|---|---|---|---|
| 2021 | 3 | 0 | |
| 2022 | 3 | 0 | |
| 2023 | 7 | 0 | |
| 2024 | 5 | 0 | |
| 2025 | 6 | 1 | |
| 2026 | 6 | 1 |
How people get to work in Diamond Bar
| Share of workers | Diamond Bar | California |
|---|---|---|
| Drive alone | 69.9% | 65.7% |
| Carpool | 9.3% | 9.5% |
| Public transit | 1% | 2.9% |
| Walk | 0.4% | 2.4% |
| Bicycle | 0.3% | 0.7% |
| Work from home | 18.4% | 17.2% |
2.4% of households in Diamond Bar have no car (California: 7.1%). The average trip to work takes 33.3 minutes one way (California: 28.7).
US Census American Community Survey, 2020–2024 five-year estimates, 53,355 residents. These are trips to work only: walks to school, the shops or a bus stop aren't counted, so they can't say how much walking or riding happens on Diamond Bar's streets.
Common questions about Diamond Bar
- Where do the most bike crashes happen in Diamond Bar?
- The worst spot is Diamond Bar Blvd & Palomino Dr, with 5 reported bike crashes from 2021–2026.
- How many cyclists were killed in Diamond Bar?
- No deaths were reported in 30 reported bike crashes in Diamond Bar from 2021–2026, and 2 left someone seriously hurt or killed.
- How do cyclists usually get hit in Diamond Bar?
- 50% were side-impact crashes at junctions (drivers pulling out or turning across). 13% were sideswipes (close passes, right hooks, car doors). 13% were riders hit from behind. 17% happened after dark. 10% were hit-and-run.
- When and where do bike crashes happen in Diamond Bar, compared with California?
- Of 30 reported bike crashes in Diamond Bar from 2021–2026: 17% (California: 21%) of crashes happened after dark. 7% (California: 13%) left someone seriously hurt or killed. The busiest hour was 3 p.m. (California: 3 p.m.). 7% (California: 3%) were on a wet road, as the report records it.
- Which streets in Diamond Bar have the most bike crashes?
- By the street each police report names first, 2021–2026: Diamond Bar Blvd (6), Pathfinder Rd (5), Golden Springs Dr (4). Long, busy streets collect more crashes partly because more people use them.
- How many people bike to work in Diamond Bar?
- 0.3% of workers in Diamond Bar ride a bicycle to work (California: 0.7%), and 1% take public transit. 2.4% of households have no car (California: 7.1%). From the Census American Community Survey, 2020–2024.
- How many bike crashes happen in Diamond Bar each year?
- Reported bike crashes with map locations: 2021: 3, 2022: 3, 2023: 7, 2024: 5, 2025: 6, 2026: 6. 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. Only crashes reported with map coordinates are counted, so the real totals are higher.
Places to ride to near Diamond Bar
Bike climbs near Diamond Bar
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. Busy streets show more crashes partly because more people use them. Data last rebuilt 2026-10-22. How the data works.