The Suffolk County GIS Viewer holds data pertaining to transportation, elevation, jurisdiction, health & safety, infrastructure, environment, reference, records and land use. Use this viewer to search by address or tax parcel.

This GIS dataset was prepared by the Suffolk County Department of Economic Development and Planning for the Suffolk County Department of Health Services as part of the Suffolk County Subwatersheds Wastewater Plan titled Suffolk County Management Program for the Reduction of Nitrogen Loading from Wastewater Sources. The Department of Economic Development & Planning was asked to provide “parcel-specific buildout land use” for all of Suffolk County. In order to provide parcel-specific buildout land use, the land use for each and every distinct tax map parcel in the Suffolk County Real Property Tax Service Agency Tax Map Album had to be checked and updated. Following this task, parcel-specific land available for residential development was determined, and then residential buildout was calculated.

What is an agricultural district?A geographic area which consists predominantly of viable agricultural land. Agricultural operations within the district are the priority land use and afforded benefits and protections to promote the continuation of farming and the preservation of agricultural land. In practice, districts may include land that is actively farmed, idle, forested, as well as residential and commercial.How is an agricultural district created?Interested landowners who, collectively, own at least 250 acres of the land proposed for a district submit a proposal to their county legislative body (CLB). The county agricultural and farmland protection board (AFPB) and the county planning board (CPB) review the proposal and make recommendations to the CLB. The CLB considers the following factors:· viability of farming in the area· presence of viable farmland· the extent of other land uses· county development patterns and needs.Once the CLB adopts the district plan it is submitted to the Commissioner. The Commissioner determines whether the area consists of predominantly viable agricultural land, whether it is feasible and will serve the public interest. The Commissioner shall certify if the above conditions are met and submits a copy of the plan to the Advisory Council on Agriculture.For more information visit: Suffolk County Farmland Program websiteApplication created by the Suffolk County Department of Information Technology/GIS Division

This vector dataset provides a published representation of churches in Suffolk County, managed in the facility site point feature class, combined with service information and organized for consumption in desktop and web applications.

Land Use MethodologyA significant effort was required to verify and correct the land use codes to produce an accurate parcel-specific land use database, especially given the large geographic extent of Suffolk County, the large number of individual parcels, and the variety of development across the County. In 2017, the Suffolk County Division of Planning & Environment began to comprehensively update its land use inventory for 2016 for all 581,000 land parcels in Suffolk County. The Division’s GIS was employed to link land use data with parcels shown on the Suffolk County Real Property Tax Map.

This feature class was created by exporting the Census County Subdivision polygon features from the 2020 TIGER/Line Geodatabase.TIGER Geodatabases are spatial extracts from the Census Bureau’s MAF/TIGER database. These files do not include demographic data, but they contain geographic entity codes that can be linked to the Census Bureau’s demographic data.

The county is divided into 18 legislative districts. Every two years, the residents of each of the districts elect a representative to the Legislature. Every 10 years, after each census is tallied, the boundaries of the districts are redrawn according to the redistribution of the population.

Villages within Suffolk County, NY.

These data were automated to provide an accurate high-resolution historical shoreline of Ragged Island Creek to Craney Island West in Suffolk County, VA suitable as a geographic information system (GIS) data layer. These data are derived from shoreline maps that were produced by the NOAA National Ocean Service including its predecessor agencies which were based on an office interpretation of...

Suffolk County Shellfish Aquaculture Lease Program in Peconic Bay and Gardiners Bay - Ten Year Review. This application was created for public viewing during the review process.

April 2022

Stop Name is included in the attribute table.

This vector dataset provides points that represent significant golf course facility locations in Suffolk County. These courses can be publicly (State, County, Town, Village) or privately owned. This dataset can be linked with the GolfCoursePolygon feature class by the FACILITYID field. In some cases, there may be multiple Golf Course Points for a single Golf Course Polygon. These data are organized for consumption in desktop and web applications.

Boundaries (polygons) of US Congressional (House of Representatives) districts in New York State with name and contact info for Congressperson. Districts based on Legislative Task Force redistricting 2024. Information on representative based on congressional website as of 9-26-2025. Please contact Geospatial Services at nysgis@its.ny.gov if you have any questions. All district boundaries have been clipped to the NYS shoreline. This affects the following counties: Bronx, Cayuga, Chautauqua, Clinton, Erie, Essex, Franklin, Jefferson, Kings, Monroe, Nassau, New York, Niagara, Orleans, Oswego, Queens, Richmond, St. Lawrence, Suffolk, Washington, Wayne, Westchester.

Polygons and owner information of airports in Suffolk County, NY.

Towns within Suffolk County, NY.

Contour lines for Suffolk County, NY at 10ft intervals.

This vector dataset contains polygon features that represent the college campuses or site locations throughout Suffolk County. These features can be linked with some of the features of the CollegePoint feature class by the FACILITYID field. These data are organized for consumption in desktop and web applications.

This feature class was created by exporting the Census Block Group features from the 2020 TIGER/Line Geodatabase.TIGER Geodatabases are spatial extracts from the Census Bureau’s MAF/TIGER database. These files do not include demographic data, but they contain geographic entity codes that can be linked to the Census Bureau’s demographic data.

This vector dataset contains park point features for parks (Federal, State, County, Town, Village, Non Profit, Public) located in Suffolk County. These points are linked with the ParkPolygon feature class by the FACILITYID field. In some cases, there may be multiple Park Points for a single Park Polygon. These data are organized for consumption in desktop and web applications.