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Finding Flock

Cameras / California / Rancho Cucamonga

License plate readers in Rancho Cucamonga, CA

Volunteers have documented 225 automated license plate readers inside Rancho Cucamonga. That is the 7th-largest total among the 353 California cities indexed here, and 1.1% of the statewide total. At 4.8 per square mile it is more densely covered than 87% of the 2,395 US cities indexed nationally. Its 225 readers are more than 7 times the 31-camera median for the 353 California cities indexed here. Where a mount was recorded, volunteers logged 70 on poles and 31 on traffic signals.

Checked against OpenStreetMap September 28, 2026 · figures last changed September 26, 2026.

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  • 225

    readers documented

  • 4.8

    per square mile

  • 7th

    of 353 indexed California cities · 34th of 2,395 nationally

  • 1.1%

    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

Compare every ALPR manufacturer nationally →

What volunteers recorded

Monitoring public roads
221 cameras are tagged as watching public streets or traffic.
How they’re mounted
pole (70), traffic signal (31), street lamp (21), post (1)
Coverage area
46.5 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.