Click on a state to see the links for that state or scroll down below the map to view the entire list of state GIS data clearinghouse sites.

Alabama
Alabama Metadata Portal
Alabama Water Quality Information System

Alaska
Alaska Geospatial Data Clearinghouse

Arizona
Arizona Geographic Information Council
Arizona Electronic Atlas

Arkansas
Arkansas GIS Gateway
AR-GAP - Center for Advanced Spatial Technologies (CAST), University of Arkansas

California
California Spatial Information Library (CaCIL)
California Land Use Planning Information Network (LUPIN)
Northern Sierra Nevada GIS

Colorado
Southwestern Colorado Data Center

Connecticut
Map and Geographic Information Center (MAGIC) - University of Connecticut
Connecticut Department of Environmental Protection

Delaware
Delaware Spatial Data Clearinghouse

Florida
Florida Geographic Data Library

Georgia
Georgia Spatial Data Infrastructure

Hawaii
City & County of Honolulu Dept. of Planning and Permitting
State of Hawaii Office of Planning GIS

Idaho
Inside Idaho - Interactive Numeric & Spatial Data Information Data Engine
Idaho Department of Water Resources

Illinois
Illinois Natural Resources Geospatial Data Clearinghouse

Indiana
Indiana GIS Initiative

Iowa
Iowa Geographic Information Council (IGIC)

Kansas
Kansas Geospatial Community Commons

Kentucky
Kentucky Geological Survey
Kentucky Office of Geographic Information (KYGI)

Louisiana
Atlas: The Louisiana Statewide GIS
Louisiana Geographic Information Center (LAGIC)

Maine
Maine Office of GIS

Maryland
Maryland Historical Trust

Massachusetts
Massachusetts GIS

Michigan
Michigan Center for Geographic Information

Minnesota
Minnesota Geographic Data Clearinghouse
Minnesota Legislative Geographic Information Services

Mississippi
Mississippi Automated Resource Information System (MARIS)

Missouri
Missouri Spatial Data Information Service (MSDIS)

Montana
Natural Resource Information System (NRIS) - Montana State Library

Nebraska
Nebraska Geospatial Data Bank

Nevada
Nevada Bureau of Mines & Geology

New Hampshire
New Hampshire GRANIT

New Jersey
New Jersey Geographic Information Network (NJIN)
New Jersey Dept. of Environmental Protection, GIS

New Mexico
New Mexico Resource Geographic Information System (RGIS)

New York
NYC OASIS
BYTES of the BIG APPLE
Cornell University Geospatial Information Repository (CUGIR)
NY State GIS Clearinghouse - password protected, can be accessed from EDS
NYS Office of Cyber Security & Critical Infrastructure Coordination Orthoimagery Interactive Mapping Gateway

North Carolina
North Carolina Geographic Data Clearinghouse
NCSU Libraries County GIS Data

North Dakota
North Dakota Geographic Information Systems (NDGIS)

Ohio
Ohio Geographically Referenced Information Program (OGRIP)

Oklahoma
Oklahoma Center for Geospatial Information
Oklahoma State GIS Council

Oregon
Oregon Geographic Data Clearinghouse (OGDC)

Puerto Rico
Benthic Habbitats of Puerto Rico and the US Virgin Islands
Puerto Rico Interactivo (PRI)

Pennsylvania
Pennsylvania Spatial Data Access (PASDA)
Penn State University Libraries Maps & Data: Interactive Data Sources

Rhode Island
University of Rhode Island Natural Resource and Environmental Management

South Carolina
South Carolina Dept. of Natural Resources GIS Data Clearinghouse

South Dakota
South Dakota Geological Survey Program

Tennessee
Tennessee Spatial Data Server

Texas
Texas Natural Resources Information System (TNRIS)
Texas Water Development Board

Utah
Utah GIS Portal

Vermont
Vermont Center for GIS (VGIC)

Virginia
Virginia Geographic Information Network

Washington
Washington State Geographic Information Council (WSGIC)
Washington State Dept. of Natural Resources GIS

West Virginia
West Virginia State GIS Technical Center

Wisconsin
WISConsin Land INformation Clearinghouse (WISCLINC)

Wyoming
Wyoming Geographic Information Science Center
Wyoming Geographic Information Advisory Council