Flock & ALPR Cameras in Castro Valley, California
Volunteers have reported 34 automated license plate readers in and around Castro Valley — cameras that log every passing plate with a time and location.
Jurisdiction · by recorded street address
The 34 cameras counted on this page are every reader mapped within about 20 kilometres of Castro Valley, so the count crosses municipal lines. By the street address recorded for each one, 33 of them sit inside Castro Valley itself.
The rest sit in Hayward (1).
12 of them name an operator in the record: California Highway Patrol (CHP) (10), Alameda County Sheriff's Office (2). The operator is who runs the camera, which is not always the local government.
Source: community-mapped camera data (OpenStreetMap, ODbL), with addresses resolved by Nominatim.
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- Oct 2 Flock Safety camera newly reported
Newly reported by volunteers — cameras may have been up long before someone mapped them.
Where the cameras are in Castro Valley
The readers mapped around Castro Valley break down as 28 Flock Safety, 5 Motorola Solutions. Named operators in the reports: California Highway Patrol (CHP), Alameda County Sheriff's Office. The first camera here was reported in Nov 2024; the most recent in Aug 2026.
- Castro Valley Boulevard — 7 readers
- Redwood Road — 7 readers
- Norbridge Avenue — 4 readers
- Arthur H. Breed Junior Freeway — 3 readers
- Columbia Drive — 3 readers
- Strobridge Avenue — 2 readers
- Lake Chabot Road — 2 readers
- Foothill Boulevard — 1 reader
- Grove Way — 1 reader
- Somerset Avenue — 1 reader
- Center Street — 1 reader
- John Drive — 1 reader
Castro Valley in the Alameda County picture
Alameda County has 1,204 reported cameras county-wide and ranks #235 of 3,222 U.S. counties for cameras per resident, inside the top 10.9% nationally. That’s across 1,651,949 residents and 3,687 road miles. By road density that is 0.33 cameras per road mile, in the top 0.4% of counties nationally.
Where contributors recorded what a camera watches, the split here is 32 traffic. Operators named on the record: California Highway Patrol (CHP) (10), Alameda County Sheriff's Office (2).
Camera activity around Castro Valley, last 30 days
1 newly reported in our hourly change log for Castro Valley. Latest change logged Aug 20, 2026.
What’s watching Castro Valley
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 Castro Valley — here’s where that data goes. Counts cover cameras reported closest to Castro Valley (within ~20 km), so nearby towns share the same corridors. Spot one that’s missing? Report it on DeFlock.
What you can do in Castro Valley
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 Castro Valley
← All California cameras, counties & cities
Camera reports: the open-source DeFlock project. Place data: GeoNames (CC BY).