The Cartography & GIS (Geographic Information System) Section provides in-house cartographic and GIS assistance to the Economic Development & Planning Department staff and other county agencies. It also provides assistance to towns, villages and other public agencies with jurisdictions within Suffolk County. GIS-based assistance includes land use, parks and open space, farmland, as well as maps relating to specific projects such as aquaculture, land preservation, waterfront development, or natural resources.
The Cartographic & GIS Section is repository for aerial photographs and maps. Historic aerial photographs are available at the Planning & Environment Division for viewing purposes only. To view these aerials an appointment is necessary.
Maps available for download can be found on this site. These include various topics pertaining to the Political Boundaries, Census Information, Infrastructure, Environment, Census, and other topics of general interest within Suffolk County. All downloadable maps are in PDF format.
For GIS Parcel Line-work please contact:
Suffolk County Real Property Tax Service Agency, Riverhead, New York 631-852-1500
For other GIS Layers go to the Suffolk County Open Data Portal at the following address
Historic Aerials can be found on the Suffolk County GIS Viewer