Nassau County Police Department

The Nassau County Police Department (NCPD) is the primary county law-enforcement agency serving much of Nassau County, New York. Headquartered 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, aviation support, and emergency services.

For residents, commuters, and visitors, NCPD is often the main point of contact for emergencies, traffic incidents, accident reporting, crime-prevention information, and other county police services. Because Nassau also includes cities, incorporated villages, and specialized properties with their own policing arrangements, the correct agency can depend on exactly where an incident occurs. Non-emergency procedures, public desk hours, and reporting options may change, so it is best to check the official website or call ahead before visiting a specific precinct or 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 support day-to-day neighborhood policing across county precincts.
• Detective & Investigative Services – Detectives investigate serious crimes and work with specialized squads handling violent crime, property crime, financial crime, and other major cases.
• 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, along with search, rescue, and other high-priority emergency operations.
• Communications, Intelligence & Public Safety Coordination – Countywide resources help support information-sharing, large-event response, and coordination with local, state, and federal partners.
• Community Affairs & Crime Prevention – Public outreach, 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, supported by countywide bureaus and specialized units. 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.

It is also important to note that some Nassau County communities are served by their own city or village police departments rather than NCPD. Incidents on state parkways, state park property, rail property, or other specialized jurisdictions may also involve another agency. If you need records, a police report, or a desk officer for a specific municipality, verify 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. Program names and unit structures may be updated over time, but commonly referenced efforts include:

• Police Activity League (PAL)
• Community Affairs Officers
• School safety coordination and youth outreach
• Crisis intervention and behavioral health response initiatives
• Substance-use prevention, overdose awareness, 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 or bureau, check ahead for the proper contact information, identification requirements, office hours, and reporting instructions. Do not rely on non-emergency lines or web forms for urgent or active emergencies.

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’s countywide responsibilities can include major roadways, waterways, large public events, and coordination with neighboring local, state, and federal agencies.
• Public-facing procedures for reports, records, and walk-in services may change over time, so checking current instructions online before visiting is recommended.

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Mineola, NY (Police Headquarters)

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Quick Facts: NCPD

Category	Details
Location	Mineola, NY (Police Headquarters)
Jurisdiction	Much of Nassau County, NY; some cities, villages, and specialized properties are served by other agencies
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, and community outreach
Visitor Note	Desk hours, report procedures, and precinct services may vary; check ahead before visiting