Nassau County GIS Property Maps (New York)

Search for Nassau County, NY GIS maps and property maps. Property maps show property and parcel boundaries, municipal boundaries, and zoning boundaries, and GIS maps show floodplains, air traffic patterns, and soil composition.


Nassau County Assessors determine the value of properties and parcels in order to assess property taxes in Nassau County, NY. The Assessor's Office maintains current data on every parcel in the district, which includes Nassau County GIS maps, tax maps, and property maps. These maps show property lines, structures, addresses, and the value of properties in the Assessor's jurisdiction. Tax Assessor's Offices provide online access to property maps.

Freeport Assessor Freeport NY 46 North Ocean Avenue 11520 516-377-2256

Nassau County Assessor's Office Mineola NY 240 Old Country Road 11501 516-571-1500


Nassau County Building Departments develop and enforce building codes to ensure the construction of safe buildings in Nassau County, NY. The Building Department maintains records on design plans for construction and renovation projects, which can include Nassau County GIS maps and zoning maps. These maps show property lines, current structures on the parcel, and modifications to any structures, including new buildings. Many Building Depts provide online databases to access GIS databases, maps and related property information.

Freeport Building Department Freeport NY 46 North Ocean Avenue 11520 516-378-0700

Hempstead Building Department Hempstead NY 1 Washington Street 11550 516-538-8500

Hempstead Planning Department Roosevelt NY 383 Nassau Road 11575 516-378-2111

Hempstead Planning Department Hempstead NY 200 North Franklin Street 11550 516-538-7100

Lawrence Building Department Lawrence NY 196 Central Avenue 11559 516-239-3987

Manhasset Planning Department Manhasset NY 210 Plandome Road 11030 516-869-7752

Nassau County Planning Department Mineola NY 1 West Street 11501 516-571-4203

North Hempstead Building Department Manhasset NY 210 Plandome Road 11030 516-869-7680

North Hempstead Zoning Manhasset NY 210 Plandome Road 11030 516-869-7659

Oyster Bay Planning Department Oyster Bay NY 74 Audrey Avenue 11771 516-624-6200

Oyster Bay Zoning Oyster Bay NY 74 Audrey Avenue 11771 516-624-6232

Valley Stream Zoning Valley Stream NY 123 South Central Avenue 11580 516-825-8201


Nassau County Clerks file documents and preserve municipal records in order to maintain an archive in Nassau County, NY. The Clerk's Office contains a number of documents on property, including GIS maps and property maps that show property lines, registered lands, and, in some cases, property tax assessments. Nassau County GIS maps may also include information on soil composition, floodplains, air traffic, and more. Many County Clerk Offices provide online databases to access GIS and property maps.

Brookville Clerk East Norwich NY 104 Susan Cove 11732 516-922-8198

East Rockaway Clerk East Rockaway NY 376 Atlantic Avenue 11518 516-887-6312

Glen Cove Clerk Glen Cove NY 9 Glen Street 11542 516-676-2000

Hempstead Town Clerk Hempstead NY 1 Washington Street 11550 516-489-5000

Kensington Village Clerk Great Neck NY 2 Nassau Drive 11021 516-482-4409

Malverne Clerk Malverne NY 99 Church Street 11565 516-599-0722

Matinecock Village Clerk Locust Valley NY 63 Midway Avenue 11560 516-671-7790

Nassau County Clerk Garden City NY 240 Old Country Road 11530 516-571-2660

Nassau County Clerk Westbury NY 1200 Old Country Road 11590 516-493-3900

New Hyde Park Clerk New Hyde Park NY 1420 Jericho Turnpike 11040 516-354-0022

North Hempstead Town Clerk Manhasset NY 200 Plandome Road 11030 516-869-7650

North Hills Clerk Roslyn NY 1 Shelter Rock Road 11576 516-365-8857

Old Westbury Village Clerk Old Westbury NY 1 Store Hill Road 11568 516-626-0800

Oyster Bay Town Clerk Oyster Bay NY 54 Audrey Avenue 11771 516-624-6320

Oyster Bay Town Clerk Massapequa NY 977 Hicksville Road 11758 516-797-7960

Plandome Village Clerk Manhasset NY 65 South Drive 11030 516-627-1748

Valley Stream Clerk Valley Stream NY 123 South Central Avenue 11580 516-825-4200

Westbury Village Clerk Westbury NY 235 Lincoln Place 11590 516-334-1700


Nassau County Recorders of Deeds collect public records, primarily documents related to property, and make them available to the public in Nassau County, NY. The Deeds Registrar maintains records on land transactions within its jurisdiction, including Nassau County GIS and property maps. These maps show property lines, Nassau County property and parcel surveys, and, in some cases, property transactions and tax liens. Many Recorders of Deeds provide online databases to access free GIS maps, as well as related property information.

Nassau County Recorder of Deeds Mineola NY 240 Old Country Road 11501 516-571-1444


Nassau County Town Halls or City Halls are the chief administrative offices that run a town or city in Nassau County, NY. The Town or City Hall maintains property records related to the locality, including Nassau County GIS maps. These maps show Nassau County property lines, municipal boundaries, zoning boundaries, and property value assessments. GIS maps of Nassau County may also include information on soil composition, floodplains, air traffic, and more. Many Town and City Halls provide online databases to access GIS and property maps.

Glen Cove City Hall Glen Cove NY 9 Glen Street 11542 516-676-2000

Hempstead Town Hall Hempstead NY 350 Front Street 11550 516-489-5000

Levittown Town Hall Hicksville NY 201 Levittown Parkway 11801 516-933-6400

Long Beach City Hall Long Beach NY 1 West Chester Street 11561 516-431-1000

North Hempstead Town Hall Manhasset NY 220 Plandome Road 11030 516-869-6311

Oyster Bay Town Hall Oyster Bay NY 74 Audrey Avenue 11771 516-624-6333

Oyster Bay Town Hall Massapequa NY 977 Hicksville Road 11758 516-797-7900


Nassau County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in Nassau County, NY. The Office of the Treasurer and Tax Collector maintains current data on every parcel in the district, which includes property maps complete with Nassau County GIS data. These maps show property lines, structures, addresses, and the value of properties in the Treasurer and Tax Collector's Nassau County assessment roll. Many Treasurers and Tax Collectors provide online databases to access GIS and property maps, as well as related property information.

Brookville Village Treasurer Glen Head NY 18 Horse Hill Road 11545 516-626-1792

Freeport Treasurer Freeport NY 46 North Ocean Avenue 11520 516-377-2261

Hempstead Village Treasurer Hempstead NY 99 Nichols Court 11550 516-489-3400

Nassau County Treasurer's Office Mineola NY 1 West Street 11501 516-571-2090