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Plate readers © OpenStreetMap contributors (ODbL) · © OpenMapTiles
Maryland has 1,023 mapped plate readers. 740 carry the Flock Safety tag. Most don't say who runs them.
Salisbury has the most (48), then Severn (45) and Glen Burnie (43). The first Flock-tagged one was mapped Dec 1, 2024. A plate reader keeps a record of each car that passes.
See who runs them · Cameras in Maryland · What is a Flock camera? · Flock cameras in the US · Maps like DeFlock
Flock cameras in Maryland by city
A city links to its own page once enough readers are mapped there.
Plate readers mapped in Maryland each month
Plate readers of any maker added to the map each month, not only Flock-tagged ones. Lighter bars are estimates from the first-mapped dates of current points.
CamsAhead started its daily change log on October 22, 2026. How the map changed.
Flock-tagged readers first mapped each month
Each row counts the Flock-tagged readers first mapped that month, newest first. Months with none are left out. Each one carries the date it was first mapped.
| Month | First mapped that month | Top cities |
|---|---|---|
| Oct 2026 | 16 | 3 in Westminster and 2 in Cumberland |
| Sep 2026 | 50 | 7 in Salisbury and 5 in Hagerstown |
| Aug 2026 | 88 | 15 in Salisbury and 7 in Glen Burnie |
| Jul 2026 | 46 | 4 in Hagerstown and 2 in Aspen Hill |
| Jun 2026 | 44 | 11 in Salisbury and 3 in Maryland City |
| May 2026 | 29 | 6 in Hyattsville and 5 in Clinton |
| Apr 2026 | 23 | 6 in Salisbury and 4 in Bowie |
| Mar 2026 | 120 | 7 in Baltimore and 5 in Largo |
| Feb 2026 | 39 | 5 in Greenbelt and 5 in North Bethesda |
| Jan 2026 | 43 | 7 in Glen Burnie and 5 in Germantown |
| Dec 2025 | 52 | 10 in Carney and 5 in Glen Burnie |
| Nov 2025 | 51 | 12 in Glen Burnie and 7 in Linthicum |
Who runs the Flock cameras in Maryland
Most don't say who runs them. The EFF's Atlas of Surveillance lists 19 agencies in Maryland that use plate readers.
- Private operators, not named 62
- anne arundel police department 9
- Anne Arundel County Police 6
- Navy Federal Credit Union 2
- Prince George's County Police 2
- Anne Arundel county Police 1
- Anne Arundel County Police Real Time Information Center (RTIC) 1
- Anne Arundel Police Department 1
- Baltimore County (police?) 1
- Calvert County Sheriff 1
Plate reader law in Maryland
| Topic | Maryland |
|---|---|
| Status | Law |
| Law | Md. Code, Public Safety § 3-509 |
| What it does | Lets police use captured plate data only for a legitimate law enforcement purpose, bars selling it and uploading historical data to other agencies, requires procedures and audits, and keeps it out of the Public Information Act. |
| Who it can be shared with | Historical data may not be uploaded 'to any other law enforcement agency or entity, regardless of whether the agency or entity is located inside or outside the State', but may be uploaded to the Maryland Coordination and Analysis Center database (§ 3-509(b)(2)(iv)-(v)) |
| Public record? | Not subject to disclosure under the Maryland Public Information Act (§ 3-509(d)) |
| Public records law | Maryland Public Information Act, Md. Code, Gen. Prov. § 4-101 et seq. |
| Checked |
See Maryland plate reader law next to the other states.
Flock cameras in Maryland: questions
How many Flock cameras are in Maryland?
740 plate readers tagged Flock Safety are on the map in Maryland, as of November 7, 2026. The real number may be higher or lower: the map shows only the cameras mapped so far.
Which cities in Maryland have the most Flock cameras?
By mapped count: Salisbury (48), Severn (45) and Glen Burnie (43). The city list on this page shows each city with a Flock-tagged reader.
Is each mapped camera still there?
Not always. A point shows where someone mapped a camera. 2 of the 740 carry a date when a volunteer last checked them on the ground.
Maryland's plate reader data
From OpenStreetMap, under the Open Database License (ODbL) 1.0. A free copy goes to anyone who asks: how it is made and how to ask.
Know when cameras in Maryland change.
Free email alerts for new plate readers mapped near your places. One summary email a month.
- When a plate reader is first mapped near you
- New cameras mapped or reported near you
- What plate readers keep, and who runs them
- Your street, your distance, the camera types you pick
1,828 cameras listed or mapped in Maryland so far.
Sources and updates
How this page was made: CamsAhead writes each page type once, then fills it with this place's data from the sources below.
- OpenStreetMap contributors: plate readers, data as of Nov 7, 2026; ODbL 1.0
- EFF Atlas of Surveillance: agencies that use plate readers, data as of Aug 2026; CC BY 4.0
- Md. Code, Public Safety § 3-509: plate reader law, checked Oct 25, 2026
- Reporters Committee for Freedom of the Press, Open Government Guide: public records law, checked Oct 25, 2026
Plate reader points are mapped by OpenStreetMap volunteers (data as of November 7, 2026).
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