Find Residents Directory in Nassau County
Nassau County occupies the western portion of Long Island, directly east of New York City, and is home to roughly 1.4 million people. The residents directory for Nassau County provides access to property records, court filings, assessment data, and vital records maintained by various county and state offices. The county seat is in Mineola, where most administrative functions are centered. Nassau County ranks among the most affluent counties in the nation and processes hundreds of millions of dollars in real property transactions each year. This page walks through every major record source available in the Nassau County residents directory so you know exactly where to look.
Nassau County Overview
Nassau County Clerk's Office
The Nassau County Clerk is Maureen O'Connell, who has held the position since 2005. The Clerk is a constitutional officer elected by Nassau County voters. The main office is at 240 Old Country Road in Mineola, NY 11501. You can reach them at 516-571-2664. The office handles recording of real property documents, including deeds, mortgages, satisfactions, and assignments. It maintains the official index of property ownership for the entire county.
Land documents recorded through the Nassau County Clerk are searchable online. The digital system covers records going back several decades. You can search by grantor name, grantee name, or document type. Title companies and attorneys rely on this system for closings and title searches. Individual property owners can use it to verify that a deed was properly recorded or to check for liens against their property. Some records require a trip to the Mineola office, especially older filings that predate the digital index. Certified copies can be ordered in person or by mail for a fee set under New York County Law Section 525.
| Office | Nassau County Clerk |
|---|---|
| Clerk | Maureen O'Connell |
| Address | 240 Old Country Road Mineola, NY 11501 |
| Phone | 516-571-2664 |
The Clerk's office also processes passport applications. Appointments are required and can be made by calling 516-571-3778. Notary public registrations used to go through this office, but since June 30, 2023, renewals must be submitted directly to the NYS Secretary of State under Executive Law Section 131(2). New notary applications still follow the standard process through the state. The Clerk serves as Clerk of the Supreme and County Courts in Nassau County, handling court filings and maintaining case records for those courts.
Nassau County Residents Directory Property Records
Property assessment in Nassau County falls under the Department of Assessment. This department maintains the assessment roll, which lists every parcel in the county along with its assessed value. Assessment data determines how much property tax each owner pays. The department also administers exemptions, including STAR for primary residences, veterans exemptions under Real Property Tax Law Section 458, and senior citizen exemptions for qualifying homeowners aged 65 and older.
The Assessment Review Commission handles property tax grievances each year. If you believe your assessment is too high, you can file a complaint during the grievance period. The commission reviews the evidence and issues a determination. This process is separate from the small claims assessment review available under Real Property Tax Law Article 7. Many Nassau County homeowners file grievances annually. The process is straightforward and does not require a lawyer, though some people use assessment reduction firms to handle it.
For recorded documents like deeds and mortgages, those go through the County Clerk as described above. Property tax bills are issued by the individual municipalities within Nassau County. Each city, town, and village has its own tax collector. The county also levies a general tax that appears on each bill. If you need to verify the tax status of a property, check with both the county and the local municipality.
How to Search the Nassau County Residents Directory
Records in Nassau County come from multiple offices. The trick is knowing which one holds what you need. Here is a quick guide to the main categories.
Court records for cases filed in Nassau County Supreme Court or County Court can be searched through the eCourts system run by the New York State Unified Court System. WebCivil Supreme handles civil case lookups. WebCriminal covers criminal matters. You can search by party name or index number. The system shows case status, filing dates, and some documents. For sealed records or certified copies, you need to contact the court clerk directly. Family court and surrogate's court records have separate access rules and are generally not available online.
New York's Freedom of Information Law, codified in Public Officers Law Sections 84 through 90, gives you the right to request records from Nassau County agencies. Submit a written FOIL request to the records access officer at the relevant department. The agency has five business days to respond with the records, a denial, or a request for more time. Copy fees are capped at $0.25 per page. The Committee on Open Government provides model request letters and advisory opinions if you run into problems.
For those looking at voter records, the state voter lookup tool lets you check registration status for Nassau County voters. Election Law Section 3-103(5) restricts voter data to election-related purposes. Commercial use is not allowed. The Nassau County Board of Elections handles local election administration and can provide additional voter roll information upon request.
Vital Records in Nassau County
Birth and death certificates for Nassau County residents are available from both the local registrar and the New York State Department of Health. The state office has records from 1880 forward. Local registrars in each city and town within Nassau County may also have copies. Ordering from the state can be done online, by mail, or by phone. Fees and turnaround times depend on the method you choose.
Marriage licenses in Nassau County are issued by the town or city clerk where the couple applies. Both parties must appear in person and bring valid identification. A 24-hour waiting period applies after the license is issued, though a judge may waive it under Domestic Relations Law Section 13-b. The license remains valid for 60 days. After the ceremony, the officiant files the signed license with the issuing clerk, and it becomes a permanent record. Certified copies of marriage certificates can be ordered from the clerk who issued the license or from the state Department of Health.
Divorce records in New York are maintained by the county clerk where the divorce was granted. For Nassau County divorces, check with the County Clerk's office in Mineola. The state Department of Health also maintains a statewide index of divorces, but you need to know which county handled the case to get the actual decree.
State Resources for Nassau County
Several state-level databases are useful for the Nassau County residents directory. The Sex Offender Registry maintained by the Division of Criminal Justice Services lists Level 2 and Level 3 offenders in a public online database. Search by name, county, or zip code. Level 1 offenders require a phone call to 800-262-3257 with the person's name and one identifying detail. NY-ALERT sends notifications when listed offenders move into or out of your area.
The New York Open Data Portal has thousands of datasets covering health, education, public safety, and government operations. Some of these datasets include Nassau County information. They are free to search and download. The portal is a good starting point when you want aggregate data rather than individual records. For historical research, the New York State Archives preserves documents from the colonial period through the modern era, including census records, military records, and naturalization papers that may cover Nassau County families.
Nassau County in the Residents Directory
Nassau County includes several municipalities that have their own pages in the residents directory. Each page covers local offices, contact details, and record access options specific to that area. Check the page for your city or town for the most relevant information.
Nearby Counties
Nassau County borders Queens to the west and Suffolk County to the east. Kings County is also nearby, across the borough line. Each of these counties maintains its own public records through separate offices.