Flock & ALPR Cameras in Diamond Bar, California
Volunteers have reported 35 automated license plate readers in and around Diamond Bar — cameras that log every passing plate with a time and location.
Jurisdiction · by recorded street address
The 35 cameras counted on this page are every reader mapped within about 20 kilometres of Diamond Bar, so the count crosses municipal lines. By the street address recorded for each one, 19 of them sit inside Diamond Bar itself.
The rest sit in Pomona (8), Walnut (8).
Source: community-mapped camera data (OpenStreetMap, ODbL), with addresses resolved by Nominatim.
Need this city’s camera data? Custom extracts are free for researchers, journalists and advocates. Ask for it.
No new reports near Diamond Bar in the last 30 days — checked hourly, last checked Oct 7, 16:21 UTC. Cameras only get on the map when someone looks: be the one.
Where the cameras are in Diamond Bar
The readers mapped around Diamond Bar break down as 35 Flock Safety. The first camera here was reported in Dec 2024; the most recent in Sep 2026.
- South Diamond Bar Boulevard — 4 readers
- Grand Avenue — 4 readers
- Avenida Rancheros — 4 readers
- Golden Springs Drive — 3 readers
- North Grand Avenue — 3 readers
- North Diamond Bar Boulevard — 3 readers
- West Temple Avenue — 3 readers
- Sunset Crossing Road — 2 readers
- Temple Avenue — 2 readers
- Phillips Ranch Road — 2 readers
- West Mission Boulevard — 1 reader
- Valley Boulevard — 1 reader
+ 3 more streets and roads mapped around Diamond Bar — all on the live map above.
Diamond Bar in the Los Angeles County picture
Los Angeles County has 2,677 reported cameras county-wide and ranks #1,106 of 3,222 U.S. counties for cameras per resident. That’s across 9,848,406 residents and 18,753 road miles. By road density that is 0.14 cameras per road mile, in the top 2.7% of counties nationally.
Where contributors recorded what a camera watches, the split here is 20 traffic.
Camera activity around Diamond Bar, last 30 days
2 newly reported in our hourly change log for Diamond Bar. Latest change logged Sep 2, 2026.
What’s watching Diamond Bar
These aren’t red-light cameras. Automated license plate readers like Flock Safety’s photograph every plate that passes, log the time and place, and store it in a searchable database that’s often shared far beyond Diamond Bar — here’s where that data goes. Counts cover cameras reported closest to Diamond Bar (within ~20 km), so nearby towns share the same corridors. Spot one that’s missing? Report it on DeFlock.
The latest around Diamond Bar
- 4 new license plate readers reported around Diamond Bar, CA
- 2 new license plate readers reported around Diamond Bar, CA
- 2 new license plate readers reported around Diamond Bar, CA
What you can do in Diamond Bar
Ask who approved these cameras, how long plate data is kept, and who it’s shared with. File a public records request, raise it at a council meeting, and see the full playbook on Take Action. Fighting this locally? Join or start a chapter and we’ll amplify you.
Not sure what one looks like? See photographs of installed cameras before you go looking.
Cameras near Diamond Bar
← All California cameras, counties & cities
Camera reports: the open-source DeFlock project. Place data: GeoNames (CC BY).