State GIS

Check the Q:\ drive folders \Data&Maps2023 (general data provided by ESRI) and \Business Analyst (very extensive 2015 census data for US)

Disclaimer: this is a collection of links that were current on the date shown below. Links in the internet come in and out of existence constantly. Contact us to report a broken link or to suggest new one(s).

Last updated: March 11, 2025

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 Massachusetts

  1. The Geologic Survey of Alabama http://www.gsa.state.al.us/gsa/GIS/clearinghouse.html
  2. State of Alaska Open Data Geoportal https://gis.data.alaska.gov/
  3. The University of Arizona Library https://data.library.arizona.edu/geo
  4. The Arkansas GIS Office https://gis.arkansas.gov/
  5. California State Geoportal https://gis.data.ca.gov/
  6. ColoradoView http://www.coloradoview.org/colorado-gis/
  7. University of Connecticut – Map and Geographic Information Center http://magic.lib.uconn.edu/
  8. Delaware Spatial Data Clearinghouse http://www1.udel.edu/dsacher/gis/nsdi/clearinghouse/
  9. Florida Geographic Data Library. University of Florida https://www.fgdl.org/metadataexplorer/explorer.jsp
  10. Georgia GIS Data Clearinghouse https://data.georgiaspatial.org (Requires login)
  11. Hawaii Statewide GIS Program http://planning.hawaii.gov/gis/
  12. INSIDE Idaho Geospatial Clearinghouse http://inside.uidaho.edu/
  13. Illinois Geospatial Data Clearinghouse http://clearinghouse.isgs.illinois.edu/
  14. Indiana Geographic Information Office https://www.in.gov/gis/
  15. Iowa Geodata https://geodata.iowa.gov/
  16. Kansas GIS https://www.kansasgis.org/ (Requires login)
  17. Kentucky Geoportal https://kygeoportal.ky.gov/geoportal/catalog/main/home.page (Requires login)
  18. Louisiana Geographic Information Center http://lagic.lsu.edu/ (Not working 3/11/25)
  19. Maine GeoLibrary https://www.maine.gov/geolib/catalog.html
  20. Maryland‘s GIS Data Catalog https://data.imap.maryland.gov/
  21. Massachusetts Office of Geographic Information (MassGIS) http://www.mass.gov/mgis
  22. Michigan GIS Open Data  http://gis-michigan.opendata.arcgis.com/
  23. Minnesota Geospatial Commons https://gisdata.mn.gov/
  24. Mississippi Automated Resource Information System https://maris.mississippi.edu/#gsc.tab=0
  25. Missouri Spatial Data Information Service http://msdis.missouri.edu/
  26. Montana Natural Resource Information System http://nris.msl.mt.gov/
  27. Nebraska dept of Natural Resources Data Bank https://dnr.nebraska.gov/data
  28. Nevada‘s Clearinghouse for Maps and Geospatial Data https://keck-nbmg.opendata.arcgis.com/
  29. New Hampshire GRANIT website https://www.granit.unh.edu/
  30. New Jersey Geographic Information Network https://njgin.nj.gov/#!/
  31. New Mexico Resource Geographic Information System https://rgis.unm.edu/
  32. New York State GIS Clearinghouse https://gis.ny.gov/
  33. North Carolina OneMap https://www.nconemap.gov/
  34. North Dakota GIS  https://www.gis.nd.gov/
  35. Ohio Geographically Referenced Information Program (OGRIP) http://geohio.maps.arcgis.com/home/index.html
  36. State of Oklahoma GIS Data Warehouse https://csagis-uok.opendata.arcgis.com/
  37. Oregon GEOHub https://geohub.oregon.gov/
  38. Pennsylvania Spatial Data Access https://www.pasda.psu.edu/
  39. Rhode Island GIS http://www.rigis.org/
  40. South Carolina Geographic Information Systems https://www.dnr.sc.gov/gis.html
  41. South Dakota GIS Data  http://opendata2017-09-18t192802468z-sdbit.opendata.arcgis.com/
  42. Tennessee GIS http://www.tngis.org/
  43. Texas Geographic Information Office https://tnris.org/
  44. Utah Geospatial Resource Center https://gis.utah.gov/products/sgid/
  45. Vermont Center for Geographic Information https://vcgi.vermont.gov/
  46. Virginia Geographic Information Network https://vgin.vdem.virginia.gov/
  47. Washington Geospatial Open Data Portal http://geo.wa.gov/
  48. West Virginia GIS Technical Center http://wvgis.wvu.edu/data/data.php
  49. Wisconsin – State Cartographer’s Office https://www.sco.wisc.edu/data/
  50. Wyoming Geospatial Hub https://www.geospatialhub.org/

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