License plate readers in Decatur, IL
Volunteers have documented 128 automated license plate readers inside Decatur. That is the 4th-largest total among the 180 Illinois cities indexed here, and 1.6% of the statewide total. At 2.9 per square mile it is more densely covered than 73% of the 2,395 US cities indexed nationally. Nearly all of them — 98% — are Flock Safety units. Volunteers also recorded non-government operators here, including Simon Property Group.
Checked against OpenStreetMap September 28, 2026 · figures last changed September 18, 2026.
128
readers documented
2.9
per square mile
4th
of 180 indexed Illinois cities · 101st of 2,395 nationally
1.6%
of Illinois’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 Safety125 · 98%
- Motorola Solutions3 · 2%
What volunteers recorded
- Monitoring public roads
- 77 cameras are tagged as watching public streets or traffic.
- Recorded operators
- Flock Safety (15), Simon Property Group (1). All 720 recorded ALPR operators, ranked →
- How they’re mounted
- pole (32), street lamp (3), traffic signal (1), gantry (1)
- Coverage area
- 44.2 square miles of land inside city limits.
Nearby
Learn more: How to spot a Flock Safety camera · How ALPRs work · Can you opt out? · Illinois'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.