Cameras / California / Altadena
License plate readers in Altadena, CA
Volunteers have documented 66 automated license plate readers inside Altadena. That is the 70th-largest total among the 329 California cities indexed here, and 0.3% of the statewide total. At 7.8 readers per square mile, Altadena sits in the most densely covered 5% of the 2,231 US cities indexed nationally. Flock Safety accounts for 89%, followed by Motorola Solutions at 11%.
Updated August 14, 2026.
66
readers documented
7.8
per square mile
70th
of 329 indexed California cities
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 Safety59 · 89%
- Motorola Solutions7 · 11%
What volunteers recorded
- Monitoring public roads
- 58 cameras are tagged as watching public streets or traffic.
- Recorded operators
- Los Angeles County Sheriff (1). Who operates these cameras nationally →
- How they’re mounted
- pole (8)
- Coverage area
- 8.5 square miles of land inside city limits.
Nearby
Learn more: What a Flock camera looks like · How ALPRs work · California ALPR law
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.