Background

GIS Data for Suffolk County

The Suffolk County Cartography and GIS website offers a comprehensive suite of Geographic Information System (GIS) and cartographic resources designed to support the Department of Economic Development and Planning, other County agencies, and public entities such as towns and villages. Visitors can access extensive "GIS Data" layers through the Suffolk County GIS Portal and Open Data Portal covering topics like land use, demographics, development, natural resources, farmland, and aquaculture. The site also hosts a unique repository of "Historic Aerial Photography" of Suffolk County from 1928 through 2001, available for viewing by appointment, along with instructions and links to additional historic aerial sources and the online Suffolk County GIS Viewer. Additionally, the Cartography and GIS unit provides numerous "Maps Available For Download" in PDF format, including detailed land use maps by town and year, such as "Land Use" maps for each town from 2007 to 2016 and thematic maps covering topics like "Potential Environmental Justice Areas," "Disadvantaged Communities," "Sewered Areas and Sewage Treatment Plants," "Legislative Districts," and natural features such as "Pine Barrens & NYS Wetlands." Specialized resources like the Suffolk County Jurisdictional Map, project data for environmental and aquaculture programs, and maps for community development and water quality improvement initiatives are also featured. This site serves as an essential hub for detailed spatial information, mapping tools, and data sets supporting planning, environmental analysis, and regulatory review across Suffolk County.