License plate readers in Marshalltown, IA
Volunteers have documented 48 automated license plate readers inside Marshalltown. That is the 4th-largest total among the 24 Iowa cities indexed here, and 5.5% of the statewide total. At 2.5 per square mile it is more densely covered than 67% of the 2,395 US cities indexed nationally. Nearly all of them — 96% — are Flock Safety units. Where a mount was recorded, volunteers logged 27 on poles and 7 on traffic signals.
Checked against OpenStreetMap September 29, 2026 · figures last changed September 14, 2026.
48
readers documented
2.5
per square mile
4th
of 24 indexed Iowa cities · 456th of 2,395 nationally
5.5%
of Iowa’s documented total
Dot colors follow the manufacturer legend below. Boundary: U.S. Census Bureau, 2025 Cartographic Boundary Files. Locations: © OpenStreetMap contributors.
What volunteers recorded
- Monitoring public roads
- 48 cameras are tagged as watching public streets or traffic.
- Recorded operators
- Marshalltown Police Department (30). All 720 recorded ALPR operators, ranked →
- How they’re mounted
- pole (27), traffic signal (7)
- Coverage area
- 19.2 square miles of land inside city limits.
Nearby
Learn more: How to spot a Flock Safety camera · How ALPRs work · Can you opt out? · How state ALPR laws compare
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.