Skip to content
Sign in
Get started
free
Open Data
/
New York
/
Nassau County
Open GIS data for Nassau County, NY
Pick a category. Pages with confirmed data show the settled source list and the live map.
Sewer Line Data
11 confirmed
Property Line Data
search live
Water Main Data
search live
Wetlands Data
search live
Floodplain Data
search live
Gas Utility Data
search live