Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and October 2, 2026.
Nassau County, New York, has about 1.4 million residents (2024 Census Bureau estimate). Every warrant for Nassau County comes from a judge of the Nassau County Supreme and County Courts or the city, town and village courts, is served by whichever agency finds the person, and is recorded in the court file of the case it was issued in. This guide says who issues and serves warrants here, where a person arrested on one is held, how to check for one and how one is cleared.
This guide covers who issues warrants, who serves warrants, after a warrant arrest, checking for a warrant, clearing a warrant and common questions.
Related guides: Nassau County public records, Nassau County arrest records, Nassau County criminal records, Nassau County court records, Nassau County police reports, New York arrest records and New York inmate search.
Who Issues Warrants in Nassau County
In New York an arrest warrant is signed by a judge. For Nassau County that means the Nassau County Supreme and County Courts, which hear divorces and major civil cases in the Supreme Court, felonies in the County Court; the city, town and village courts, which take misdemeanors, traffic cases and small claims, issue their own warrants on the cases before them.
When a defendant misses a court date the judge issues a bench warrant, and either kind of warrant lives in the court file of the case, kept by the County Clerk.
The court records page SearchSystems verified for the county is at iapps.courts.state.ny.us/nyscef/CaseSearch (page title: NYSCEF Case Search | NY iApps | Unified Court System), a site that blocks automated checks (HTTP 403), so open it in a browser.
Statewide, eCourts is the Unified Court System's free online case search (WebCivil, WebCrims and WebFamily).
Who Serves Warrants in Nassau County
The Nassau County Police Department and the agencies that report for Hempstead, Freeport, Long Beach, Glen Cove, Rockville Centre, Garden City and 15 more cities serve warrants in Nassau County.
The FBI's agency list also places these agencies in Nassau County: United States Merchant Marine Academy and the Old Westbury State University of New York Police (campus police); each serves warrants on its own ground.
A warrant issued in Nassau County is good anywhere in New York, so it is served by whichever agency finds the person, in a traffic stop as often as at the door.
Together, the 19 agencies in Nassau County with all twelve months of 2025 on file reported 17,730 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Nassau County arrest records.
Where a Person Arrested on a Warrant from Nassau County Is Held
A person arrested on a warrant and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Nassau County Police Department, held about 690 people on an average day so far in 2026 by the Vera Institute of Justice's count.
A person arrested in Nassau County on a warrant from another county is held at the same jail until that county takes custody.
How to Check for a Warrant in Nassau County
Whether a warrant is out from Nassau County shows in two places:
- ECourts, the Unified Court System's free online case search (WebCivil, WebCrims and WebFamily), for a case whose register of actions shows a warrant.
- The District Attorney, which can say whether charges were filed; a warrant on a complaint follows the filing.
Not one of the Nassau County pages SearchSystems verified (the prosecutor's and the records request page) is a list of open warrants, so a check means asking the court or the prosecutor about a case by name.
Clearing a Warrant from Nassau County
A warrant is recalled by the court that issued it, so clearing one from Nassau County starts with the County Clerk: the case goes back on the calendar and the judge recalls the warrant when the person appears.
A missed date in a case before the city, town and village courts is handled by that court, not by the Nassau County Supreme and County Courts.
A lawyer can often arrange the appearance in advance. The District Attorney's page SearchSystems verified is at nassaucountyny.gov/3427/Prosecution.
Frequently Asked Questions
Can I check for a warrant online in Nassau County?
Not from the Nassau County pages SearchSystems verified; none of them is a warrant list. eCourts is the Unified Court System's free online case search (WebCivil, WebCrims and WebFamily), and a case whose register of actions shows a warrant is the record of it. The court that issued it keeps the record; ask the County Clerk.
Who serves warrants in Nassau County?
The Nassau County Police Department, and the agency that reports for the city where the person is found; an New York warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Nassau County held?
At the county jail, run by the Nassau County Police Department, if kept in custody.
How is a warrant from Nassau County cleared?
By appearing before the court that issued it; the judge recalls the warrant in court. The case is put back on the calendar through the County Clerk.
Is this the official Nassau County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.