Mapping Resources

Multiple mapping services and geographic data files are available for the public.  MWA provides links to a number of these below.  Please contact MWA if you have a mapping program or data to share on this page.

Open Accessible Space Information System (OASIS NYC) The New York City Open Accessible Space Information System Cooperative (OASIS) is a partnership of more than 30 federal, state, and local agencies, private companies, academic institutions, and nonprofit organizations to create a one-stop, interactive mapping and data analysis application via the Internet to enhance the stewardship of open space for the benefit of New York City (NYC) residents. The MWA co-sponsored public access database of all known waterfront access points in the metropolitan area is hosted here and can be viewed as an interactive layer.


New York City Watertrail

If you're looking for a few hours of tranquil paddling or a full-day expedition, you'll find it here. The NYC Water Trail connects 160 square miles of rivers, bays, creeks, inlets and ocean in the five boroughs suitable for kayaks, canoes, and open-water rowing craft. Novice and experienced paddlers alike can enjoy skyline panoramas, riverside parks, bird sanctuaries, tidal marshlands, and boundless vistas of one of the world‘s premier harbors, all from a prime sea-level vantage.


The New York Ocean and Great Lakes Atlas Data Portal

The New York Ocean and Great Lakes Ecosystem Conservation Council makes information on New York ecosystems and places freely available to the public and decision makers with the launch of the “Data Portal”. The Data Portal has an easy to use keyword search function which searches 396 currently available sets of information. For public users, the Data Portal can open selected information right into GoogleEarth (a free data viewer) in addition to other formats used by geographic information technology professional.



Geographic or location-based information is provided to the public through NYCityMap among other channels such as the NYC Data Mine.  NYCityMap provides a wealth of information from the input of a single address or intersection.  In addition to indicating the specific building requested, users can select additional icons to add to the map such as schools, day care centers, senior centers, libraries, hospitals, and more, as well as links to websites for these facilities.  This page is also a single access point to many of the location-based applications on such as online property, building, census, statistics, and safety information for New York City.  



BYTES of the BIG APPLE is a family of software, data, and geographic base map files for the City of New York.  The Department of City Planning offers these products for free download or by a license agreement.


NYC OpenData

OpenData offers access to a repository of government-produced, machine-readable data sets including watershed statistics, stream lengths, and DEP data.


Empire State Development Data Center

The New York State Data Center's Geography and Mapping site provides interactive query access to geographic boundary files, Census attribute data for various levels of statistical and political geography, and predefined thematic maps illustrating various economic and demographic population characteristics. 


NYC Department of Environmental Conservation

The DEC collection of maps, interactive mapping, and GIS data includes nature, environmental facilities, and minerals, and well as other environmental topics and themes.


NYU Furman Center for Real Estate & Urban Policy

The Furman Center collects a broad array of data on demographics, neighborhood conditions, transportation, housing stock, and other aspects of the New York City real estate market.



TIGERweb Viewer

TIGERweb Viewer is a new web-based tool that allows users to visualize Census geography.  The geographic data includes legal and statistical geography as well as the roads, railroads, and water layers in the TIGER database.  The TIGERweb Viewer is built on ArcGIS Template Viewer 2.2 using Microsoft Silverlight.


American FactFinder

US Census data from the following surveys and censuses are available on FactFinder:  Decennial Census, American Community Survey, Puerto Rico Community Survey, Economic Census, and Population Estimates Program.  


New York State GIS Clearinghouse

GIS users can browse or search for keywords to find out what data is available, who holds it, and how it can be obtained.  In some cases, users will be able to go one step further and download the actual data set.  Data includes geologic maps, historic water conditions, water quality assessments, and more.

Web-based access at a single-point for maps, government data, and geospatial services.  NY-NJ harbor data includes sediment profiles, bathymetric changes, water sample chemistry, and hydrography.


CUGIR: Cornell University Geospatial Information Repository

Browse and download geospatial data such as census boundaries, hydrography, and wetlands by county.  Data sources include NYC Department of Environmental Conservation, US Census Bureau, Natural Resources Conservation Service, New York State Department of Agriculture and Markets, and more.  


New York Public Library Map Division

One of the world's premier map collections in terms of size, scope, unique holdings, and intensity of use. 


Microsoft Research Maps

High resolution US Geological Survey topographical maps and aerial images.  

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