Cameras / California / Castro Valley
License plate readers in Castro Valley, CA
Volunteers have documented 63 automated license plate readers inside Castro Valley. That is the 86th-largest total among the 355 California cities indexed here, and 0.3% of the statewide total. At 3.7 per square mile it is more densely covered than 81% of the 2,400 US cities indexed nationally. Nearly all of them — 92% — are Flock Safety units.
Checked against OpenStreetMap October 9, 2026 · figures last changed October 1, 2026.
63
readers documented
3.7
per square mile
86th
of 355 indexed California cities · 328th of 2,400 nationally
0.3%
of California’s documented total
Dot colors follow the manufacturer legend below. Boundary: U.S. Census Bureau, 2025 Cartographic Boundary Files. Locations: © OpenStreetMap contributors.
Who makes them
- Flock Safety58 · 92%
- Motorola Solutions5 · 8%
What volunteers recorded
- Monitoring public roads
- 63 cameras are tagged as watching public streets or traffic.
- Recorded operators
- California Highway Patrol (CHP) (11), Alameda County Sheriff's Department (2), Alameda County Sheriff's Office (2). All 725 recorded ALPR operators, ranked →
- How they’re mounted
- pole (5)
- Coverage area
- 16.8 square miles of land inside city limits.
Nearby
Learn more: How to spot a Flock Safety camera · How ALPRs work · Can you opt out? · California's ALPR statute
These locations were documented in the field by OpenStreetMap volunteers and refresh automatically every six hours. They are evidence of where cameras have been seen — not a complete or official inventory, and cameras may have been added or removed since documentation. Corrections happen upstream: edit OpenStreetMap and this page will update. Read more in our methodology, or download the aggregates in bulk.