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.
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 Tax map parcel line-work please contact:
Suffolk County Real Property Tax Service Agency, Riverhead, New York 631-852-1550
GIS layers may be found at the Suffolk County Open Data Portal at the following address
Suffolk County GIS Portal is another source for GIS layers
HISTORIC AERIAL PHOTOGRAPHY
The Cartographic & GIS Section is the repository for aerial photographs that were used for specific Planning projects. The Suffolk County Departments of Health Services, Public Works and Soil & Water Conservation District house other sets of historic aerial photography as well. The historic aerial photographs housed at the Planning & Environment Division are for viewing purposes only. To view these aerials an appointment is necessary.
Historic Aerials can be found online using the Suffolk County GIS Viewer (instructions to use viewer)
Suffolk County Historic Aerials dated 1928-1930
Other sources of historic aerials for locations in Suffolk County:
New York State GIS Clearing House
Stony Brook University Libraries