Cameras / California / Altadena
License plate readers in Altadena, CA
Volunteers have documented 67 automated license plate readers inside Altadena. That is the 81st-largest total among the 353 California cities indexed here, and 0.3% of the statewide total. At 7.9 readers per square mile, Altadena sits in the most densely covered 5% of the 2,395 US cities indexed nationally. Flock Safety accounts for 90%, followed by Motorola Solutions at 10%.
Checked against OpenStreetMap September 28, 2026 · figures last changed September 12, 2026.
67
readers documented
7.9
per square mile
81st
of 353 indexed California cities · 296th of 2,395 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 Safety60 · 90%
- Motorola Solutions7 · 10%
What volunteers recorded
- Monitoring public roads
- 59 cameras are tagged as watching public streets or traffic.
- Recorded operators
- Los Angeles County Sheriff (1). All 720 recorded ALPR operators, ranked →
- How they’re mounted
- pole (8)
- Coverage area
- 8.5 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.