License plate readers in Decatur, IL
Volunteers have documented 124 automated license plate readers inside Decatur. That is the 3rd-largest total among the 161 Illinois cities indexed here, and 1.8% of the statewide total. At 2.8 per square mile it is more densely covered than 75% of the 2,231 US cities indexed nationally. Nearly all of them — 99% — are Flock Safety units.
Updated August 14, 2026.
124
readers documented
2.8
per square mile
3rd
of 161 indexed Illinois cities
1.8%
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 Safety123 · 99%
- Motorola Solutions1 · 1%
What volunteers recorded
- Monitoring public roads
- 73 cameras are tagged as watching public streets or traffic.
- Recorded operators
- Flock Safety (15). Who operates these cameras nationally →
- How they’re mounted
- pole (32), street lamp (2), traffic signal (1)
- Coverage area
- 44.2 square miles of land inside city limits.
Nearby
Learn more: What a Flock camera looks like · How ALPRs work · Illinois 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.