| 7.5 Minute Topographic Maps (2000) | 978 | 1 | NYS Department of Environmental Conservation | 1:24,000 quads |
| 8-digit watershed boundaries | 1 | 1 | U.S. Geological Survey | NY State |
| Adirondack Park Boundary | 1 | 1 | Adirondack Park Agency | Adirondack Park |
| Adirondack Park Freshwater Wetlands | 103 | 1 | Adirondack Park Agency | Adirondack Park |
| Adirondack State Forest Acquisitions | 1 | 1 | Adirondack Park Agency | Adirondack Park |
| Ag Districts (Tompkins County) | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Agricultural Districts (Ag and Markets) | 53 | 3 | NYS Department of Agriculture and Markets | NY counties |
| Agricultural Minerals Operations | 1 | 1 | National Atlas | NY State |
| Agriculture Census of the U.S., 1997 | 1 | 1 | National Atlas | NY State |
| Air Monitoring Stations | 1 | 1 | Adirondack Park Agency | Adirondack Park |
| Bikeways | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Breeding Bird Survey Route Locations for New York State | 1 | 1 | National Atlas | NY State |
| Bridges | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Butterfly Occurrence Database | 1 | 1 | National Atlas | NY State |
| Cayuga Lake Watershed Impervious Areas | 1 | 1 | Cayuga Lake Watershed Network | Other watersheds |
| Cayuga Lake Watershed Land Use/Cover | 1 | 1 | Cayuga Lake Watershed Network | Other watersheds |
| Cayuga Lake Watershed Residental Waste Systems | 1 | 1 | Cayuga Lake Watershed Network | Other watersheds |
| Cayuga Lake Watershed Sewer Systems Extent | 1 | 1 | Cayuga Lake Watershed Network | Other watersheds |
| Census Block Groups 1990 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Block Groups 1995 | 62 | 2 | U.S. Census Bureau | NY counties |
| Census Block Groups 1998 | 63 | 2 | U.S. Census Bureau | NY counties |
| Census Block Groups 2000 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Blocks 1990 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Blocks 1995 | 62 | 2 | U.S. Census Bureau | NY counties |
| Census Blocks 1998 | 63 | 2 | U.S. Census Bureau | NY counties |
| Census Blocks 2000 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Places 1990 | 1 | 1 | U.S. Census Bureau | NY State |
| Census Places 1995 | 62 | 2 | U.S. Census Bureau | NY counties |
| Census Places 1998 | 63 | 2 | U.S. Census Bureau | NY counties |
| Census Places 2000 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Tracts 1990 | 63 | 1 | U.S. Census Bureau | NY counties |
| Census Tracts 1995 | 62 | 2 | U.S. Census Bureau | NY counties |
| Census Tracts 1998 | 63 | 2 | U.S. Census Bureau | NY counties |
| Census Tracts 2000 | 63 | 1 | U.S. Census Bureau | NY counties |
| Construction Minerals Operations | 1 | 1 | National Atlas | NY State |
| Cornell University Campus Tree Inventory | 1 | 1 | Cornell University | Tompkins County subsets |
| County Boundaries (Census 1990) | 63 | 1 | U.S. Census Bureau | NY counties |
| County Boundaries (Census 1995) | 62 | 2 | U.S. Census Bureau | NY counties |
| County Boundaries (Census 1998) | 63 | 2 | U.S. Census Bureau | NY counties |
| County Boundaries (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| County Subdivisions (Census 1990) | 1 | 1 | U.S. Census Bureau | NY State |
| County Tax Maps 1999 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Maps 2000 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2002 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2005 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2006 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2007 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2008 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2009 | 1 | 2 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2010 | 1 | 2 | Tompkins County ITS/GIS | Tompkins County |
| County Tax Parcels 2011 | 1 | 2 | Tompkins County ITS/GIS | Tompkins County |
| Cover Type Wetlands of the Oswegatchie-Black, Upper Hudson, and St. Regis Watersheds | 136 | 1 | Adirondack Park Agency | Adirondack Park |
| Critical Environmental Areas | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Crushed Stone Operations in New York State | 1 | 1 | National Atlas | NY State |
| Current Distribution of Selected Amphibians in New York State | 1 | 1 | National Atlas | NY State |
| Election Districts, Tompkins County, 2000 | 1 | 2 | Tompkins County ITS/GIS | Tompkins County |
| Election Districts, Tompkins County, 2002 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Election Districts, Tompkins County, 2005 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Election Districts, Tompkins County, 2006 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Elevation | 961 | 1 | NYS Department of Environmental Conservation | 1:24,000 quads |
| Ferrous Metal Processing Plants | 1 | 1 | National Atlas | NY State |
| Freshwater Wetlands (DEC; NAD83) | 59 | 1 | NYS Department of Environmental Conservation | NY counties |
| Geology | 1 | 2 | U.S. Geological Survey | NY State |
| Historical Land Cover, 1938 | 2 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1954 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1955 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1973 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1975 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1988 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 1995 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Historical Land Cover, 2000 | 1 | 1 | Lake Ontario Biocomplexity Project | Other watersheds |
| Hudson River Estuary sediment type | 1 | 1 | Hudson River Estuary Program | Hudson River Region |
| Hudson River Estuary sedimentary environment | 1 | 1 | Hudson River Estuary Program | Hudson River Region |
| Hudson River Estuary shoreline | 1 | 1 | Hudson River Estuary Program | Hudson River Region |
| Hudson River Estuary Submerged Aquatic Vegetation | 1 | 1 | Hudson River Estuary Program | Hudson River Region |
| Hudson River Valley Gap Analysis 30m Land Cover | 1 | 1 | Hudson River Estuary Program | Hudson River Region |
| Hydrography (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Hydrography (DEC by 7.5 quad) | 967 | 1 | NYS Department of Environmental Conservation | 1:24,000 quads |
| Hydrography (Tompkins County) | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Hydrography (USGS Statewide) | 1 | 1 | National Atlas | NY State |
| Hydrography Features of New York State | 1 | 1 | National Atlas | NY State |
| Hydrologic Soils (STATSGO Statewide) | 1 | 1 | Cornell Department of Natural Resources | NY State |
| Land Use (USGS) | 18 | 2 | U.S. Geological Survey | 1:250,000 quads |
| Land Use/Land Cover 1995 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Land Use/Land Cover 2007 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Landmarks (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Large Scale Hydrography Network (by watershed) | 52 | 1 | NYS Department of Environmental Conservation | Large Scale Watersheds |
| Large Scale Hydrography Surface Water Areas (by watershed) | 52 | 1 | NYS Department of Environmental Conservation | Large Scale Watersheds |
| Major Dams of New York State | 1 | 1 | National Atlas | NY State |
| Major Surface Water Sampling Sites in the National Water Quality Assessment (NAWQA) Program | 1 | 1 | National Atlas | NY State |
| Minor Civil Divisions (Census 1995) | 62 | 2 | U.S. Census Bureau | NY counties |
| Minor Civil Divisions (Census 1998) | 63 | 2 | U.S. Census Bureau | NY counties |
| Minor Civil Divisions (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Miscellaneous Industrial Minerals Operations | 1 | 1 | National Atlas | NY State |
| Municipal Boundaries 2002 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Municipal Boundaries 2005 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Municipal Boundaries 2010 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Municipal Tax Parcels 1999 | 10 | 1 | Tompkins County ITS/GIS | Tompkins County subsets |
| Municipal Tax Parcels 2000 | 10 | 2 | Tompkins County ITS/GIS | Tompkins County subsets |
| National Geodetic Survey | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| National Land Cover Dataset 1992 | 1 | 1 | Multi-Resolution Land Characteristics Consortium | NY State |
| National Land Cover Dataset 1992/2001 Change | 1 | 1 | Multi-Resolution Land Characteristics Consortium | NY State |
| National Land Cover Dataset 2001 | 1 | 1 | Multi-Resolution Land Characteristics Consortium | NY State |
| National Land Cover Dataset 2001, Tree Canopy | 1 | 1 | Multi-Resolution Land Characteristics Consortium | NY State |
| National Land Cover Dataset 2001, Urban Imperviousness | 1 | 1 | Multi-Resolution Land Characteristics Consortium | NY State |
| National Wetlands Inventory | 1 | 1 | U.S. Fish and Wildlife Service | NY State |
| New York Cropland Data Layer, 2002 | 1 | 1 | USDA National Agricultural Statistics Service | NY State |
| New York Cropland Data Layer, 2008 | 1 | 1 | USDA National Agricultural Statistics Service | NY State |
| New York Cropland Data Layer, 2009 | 1 | 1 | USDA National Agricultural Statistics Service | NY State |
| New York Cropland Data Layer, 2010 | 1 | 1 | USDA National Agricultural Statistics Service | NY State |
| New York Great Lakes stream basins | 1 | 1 | Cornell Department of Natural Resources | Other watersheds |
| New York State Average Annual Precipitation | 1 | 1 | National Atlas | NY State |
| New York State County Boundaries and Demography (Census 2000) | 1 | 1 | U.S. Census Bureau | NY State |
| Nonferrous Metal Processing Plants | 1 | 1 | National Atlas | NY State |
| Plant Distribution - Euphorbia esula, Leafy Spurge | 1 | 1 | National Atlas | NY State |
| Plant Distribution - Lythrum salicaria, Purple Loosestrife | 1 | 1 | National Atlas | NY State |
| Polling Places, Tompkins County, 2006 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Principal Aquifers of New York State (lines) | 1 | 1 | National Atlas | NY State |
| Principal Aquifers of New York State (polygons) | 1 | 1 | National Atlas | NY State |
| Public Lands | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Quarter Quads | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Railroads (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Refractory, Abrasive, and Other Industrial Minerals Operations | 1 | 1 | National Atlas | NY State |
| Road Centerlines | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Roads (Census 1995) | 62 | 2 | U.S. Census Bureau | NY counties |
| Roads (Census 1998) | 63 | 2 | U.S. Census Bureau | NY counties |
| Roads (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Sand and Gravel Operations in New York State | 1 | 1 | National Atlas | NY State |
| Soil Associations 1965 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Soil Survey 1965 | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Soils (SSURGO) | 57 | 1 | USDA Natural Resources Conservation Service | NY counties |
| Soils (SSURGO) for areas other than NY counties | 2 | 1 | USDA Natural Resources Conservation Service | Other administrative areas |
| Soils (STATSGO2 Statewide) | 1 | 1 | USDA Natural Resources Conservation Service | NY State |
| State Boundaries | 1 | 1 | U.S. Geological Survey | NY State |
| Stream basins by watershed | 2 | 1 | Cornell Department of Natural Resources | Other watersheds |
| Tompkins County Building Outlines | 1 | 2 | Tompkins County ITS/GIS | Tompkins County |
| Topographic Contour Lines 2ft | 9 | 1 | Tompkins County ITS/GIS | Tompkins County subsets |
| Transportation | 1 | 1 | U.S. Geological Survey | NY State |
| Unified School Districts (Census 1995) | 62 | 2 | U.S. Census Bureau | NY counties |
| Unified School Districts (Census 1998) | 62 | 1 | U.S. Census Bureau | NY counties |
| Unified School Districts (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Urbanized Areas (Census 1990) | 31 | 1 | U.S. Census Bureau | NY counties |
| Urbanized Areas (Census 2000) | 62 | 1 | U.S. Census Bureau | NY counties |
| Village of Cayuga Heights Street Tree Inventory | 1 | 1 | Cornell University | Tompkins County subsets |
| Voting Districts (Census 1998) | 62 | 1 | U.S. Census Bureau | NY counties |
| Voting Districts (Census 2000) | 63 | 1 | U.S. Census Bureau | NY counties |
| Watersheds (Tompkins County) | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
| Wind Resource of Tompkins County at 70m | 1 | 1 | AWS Truewind | Tompkins County |
| Wind Resource of Tompkins County at 80m | 1 | 1 | AWS Truewind | Tompkins County |
| Zebra Mussel Distribution in New York State | 1 | 1 | National Atlas | NY State |
| Zip Codes | 1 | 1 | Tompkins County ITS/GIS | Tompkins County |
