County record · California
Napa County
Technology presence
The record, by agency
Napa County Sheriff's Department
As of April 2024, the Napa County Sheriff's Office operates five Flock Safety automated license plate readers. The agency stores ALPR data for 30 days.
The Napa County Sheriff's Office operated drones as of 2024.
Sources: Napa Valley RegisterNapa County Sheriff's OfficeCenter for the Study of the Drone at Bard College
American Canyon Police Department
The American Canyon Police Department operates automated license plate readers.
Calistoga Police Department
As of April 2024, the Calistoga Police Department operates six Flock Safety automated license plate readers. The agency stores ALPR data for 30 days.
Napa Police Department
As of April 2024, the Napa Police Department operates 15 Flock Safety automated license plate readers. The agency stores ALPR data for 30 days.
St. Helena Police Department
The Saint Helena Police Department operates four Flock Safety automated license plate readers. The agency retains data for 30 days.
Source: EFF Atlas of Surveillance (Electronic Frontier Foundation & University of Nevada, Reno — Reynolds School of Journalism) · CC BY 4.0 · retrieved July 2026