Nassau County Police Department

The Nassau County Police Department (NCPD) is the county law enforcement agency serving much of Nassau County, New York. Based in Mineola, the department plays a major public-safety role on the western half of Long Island, with responsibilities that include patrol operations, criminal investigations, highway safety, marine response, and emergency services.
For residents, commuters, and visitors, NCPD is an important point of contact for emergencies, traffic incidents, accident reporting, crime prevention information, and other county police services. Because Nassau also includes cities and villages with their own police departments, the correct agency can depend on where an incident occurs. Service details, desk hours, and reporting procedures may change, so it is best to check the official website before visiting or calling for a specific unit.
Divisions & Services
The department includes precinct-based policing as well as countywide specialized units. Major service areas include:
- Patrol Operations – Uniformed officers respond to calls for service, conduct routine patrols, and assist with neighborhood policing across county precincts.
- Detective & Investigative Services – Detectives investigate serious crimes and work with specialized squads handling cases such as violent crime, property crime, and other major investigations.
- Highway & Traffic Safety – County police oversee traffic enforcement, crash response, impaired-driving enforcement, and major roadway safety operations.
- Marine, Aviation & Emergency Response – Specialized units support incidents on Nassau’s waterways and roadways, as well as search, rescue, and other high-priority emergency operations.
- Intelligence, Coordination & Public Safety Support – Countywide resources help support information-sharing, large-event response, and coordination with local, state, and federal partners.
- Community Outreach – Community affairs, youth engagement, school-related safety efforts, and prevention programs remain an important part of the department’s public-facing work.
Precincts & Coverage
The Nassau County Police Department operates eight precincts throughout the county. Precinct boundaries, public desk availability, and walk-in services can change over time, so visitors should confirm the correct precinct or unit on the official NCPD website before heading out.
- 1st Precinct
- 2nd Precinct
- 3rd Precinct
- 4th Precinct
- 5th Precinct
- 6th Precinct
- 7th Precinct
- 8th Precinct
It is also important to note that some Nassau communities are served by their own city or village police departments rather than NCPD. If you need records, a police report, or a desk officer for a specific municipality, check jurisdiction first.
Community Policing & Outreach
NCPD supports a range of public-safety and outreach efforts intended to strengthen communication between law enforcement and the community. Programs and unit names may be updated over time, but commonly referenced efforts include:
- Police Athletic League (PAL)
- Community Affairs Officers
- School safety and resource officer support
- Crisis intervention and behavioral health response initiatives
- Substance-use, overdose prevention, and public education outreach
Emergency Services & Contact Info
In an emergency, always call 911.
For non-emergency county police services, general information, or to confirm the right office before visiting:
- General NCPD Headquarters: (516) 573-8800
- Official website: www.pdcn.org
- Anonymous tips (Crime Stoppers): 1-800-244-TIPS
If your matter involves a local village or city police department, or if you need records from a specific precinct, check ahead for the proper contact information, office hours, and reporting instructions.
Notable Information
- NCPD is widely recognized as one of the largest county police departments in the United States and supports a broad mix of suburban, coastal, roadway, and community-policing operations.
- The department uses modern intelligence and coordination resources to support investigations, regional response, and major public-safety operations.
- Nassau County Police training and continuing education functions help prepare recruits and officers for patrol, investigative, traffic, and specialized assignments.
Quick Facts: NCPD
| Category | Details |
|---|---|
| Location | Mineola, NY (Headquarters) |
| Jurisdiction | Much of Nassau County, NY; some cities and villages maintain independent police departments |
| Founded | 1925 |
| Precincts | 8 precincts throughout Nassau County |
| Emergency | 911 |
| Non-Emergency | (516) 573-8800 |
| Tip Line | 1-800-244-TIPS |
| Website | www.pdcn.org |
| Services | Patrol, investigations, traffic safety, emergency response, marine and aviation support, community outreach |
| Visitor Note | Office hours, precinct services, and reporting procedures may vary; check ahead before visiting |