License plate readers in Maryland
940 ALPR cameras documented in Maryland, 706 identified as Flock Safety devices — across 23 of 24 counties (15.0 per 100,000 residents). Snapshot 2026-08-24; documented ≠ complete — methodology.
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County breakdown
| County | Documented cameras | Per 100k | Operators |
|---|---|---|---|
| Anne Arundel | 241 | 40.0 | 12 |
| Prince George's | 153 | 15.8 | 7 |
| Baltimore | 102 | 12.0 | 5 |
| Wicomico | 68 | 64.0 | 2 |
| Frederick | 60 | 20.0 | — |
| Montgomery | 57 | 5.3 | 3 |
| Washington | 49 | 31.2 | 2 |
| Howard | 48 | 14.1 | 3 |
| Baltimore | 47 | 8.3 | 3 |
| Harford | 24 | 9.0 | 1 |
| Cecil | 19 | 17.9 | 2 |
| Calvert | 13 | 13.7 | 2 |
| Carroll | 10 | 5.6 | 1 |
| Worcester | 10 | 18.4 | 2 |
| Charles | 8 | 4.6 | 3 |
| Allegany | 7 | 10.4 | — |
| Queen Anne's | 7 | 13.0 | 1 |
| Talbot | 6 | 15.7 | 1 |
| St. Mary's | 5 | 4.3 | — |
| Caroline | 2 | 5.8 | — |
| Garrett | 2 | 7.0 | — |
| Dorchester | 1 | 3.0 | — |
| Kent | 1 | 5.1 | — |
| Somerset | 0 | 0.0 | — |
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Agencies documented using ALPRs
Source: EFF Atlas of Surveillance (CC BY 4.0), agency-level records.
- Annapolis Police Departmentsource ↗
- Anne Arundel County Police Departmentsource ↗
- Baltimore County Police Departmentsource ↗
- Baltimore Police Departmentsource ↗
- Cecil County Sheriff's Officesource ↗
- Charles County Sheriff's Officesource ↗
- Forest Heights Police Departmentsource ↗
- Gaithersburg Police Departmentsource ↗
- Glenarden Police Departmentsource ↗
- Harford County Sheriff's Officesource ↗
- Howard County Police Departmentsource ↗
- Maryland State Policesource ↗
- Maryland Transportation Authoritysource ↗
- Montgomery County Police Departmentsource ↗
- Ocean City Police Departmentsource ↗
- Prince George's County Police Departmentsource ↗
- Salisbury Police Departmentsource ↗
- Towson University Police Departmentsource ↗
- University of Maryland Police Departmentsource ↗
Act lawfully
- Request your agency’s ALPR policy and audit logs via public records.
- Attend council or commission meetings when contracts come up for renewal.
- Subscribe to MD alerts for newly documented cameras.