Flock & ALPR Cameras in Crystal Lake, Illinois
Volunteers have reported 6 automated license plate readers in and around Crystal Lake — cameras that log every passing plate with a time and location.
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No new reports near Crystal Lake in the last 30 days — checked hourly, last checked Oct 7, 12:30 UTC. Cameras only get on the map when someone looks: be the one.
Where the cameras are in Crystal Lake
The readers mapped around Crystal Lake break down as 6 Flock Safety. The first camera here was reported in Oct 2025; the most recent in Jul 2026.
- Crystal Lake — 2 readers
- Northwest Highway — 1 reader
- Liberty Road — 1 reader
- Walkup Road — 1 reader
- Federal Drive — 1 reader
Crystal Lake IL PD and the sharing network
Per Flock’s own transparency portal, Crystal Lake IL PD appears in the sharing network with connections to 68 other agencies.
Crystal Lake in the McHenry County picture
McHenry County has 111 reported cameras county-wide and ranks #867 of 3,222 U.S. counties for cameras per resident. That’s across 311,366 residents and 1,878 road miles. By road density that is 0.06 cameras per road mile, in the top 10.6% of counties nationally.
Where contributors recorded what a camera watches, the split here is 5 traffic.
Camera activity around Crystal Lake, last 30 days
1 removed in our hourly change log for Crystal Lake. Latest change logged Aug 25, 2026.
What’s watching Crystal Lake
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 Crystal Lake — here’s where that data goes. Counts cover cameras reported closest to Crystal Lake (within ~20 km), so nearby towns share the same corridors. Spot one that’s missing? Report it on DeFlock.
What you can do in Crystal Lake
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 Crystal Lake
← All Illinois cameras, counties & cities
Camera reports: the open-source DeFlock project. Place data: GeoNames (CC BY).