The following list includes agency sites and GIS data clearinghouses in Minnesota; each providing access to a variety of spatial data resources.
State of Minnesota Data Sources: Minnesota Geospatial Commons https://gisdata.mn.gov/ Minnesota Pollution Control Agency (MPCA)http://www.pca.state.mn.us/index.php/data/environmental-data-access.html
Minnesota Department of Agriculture (MnAg) http://www.mda.state.mn.us/gis
Minnesota State Legislature: Legislative Coordinating Commission http://www.gis.leg.mn/
State of Minnesota Demographic Center http://www.demography.state.mn.us/
Minnesota Board of Water & Soil Resources Map Portal (BWSR) http://www.bwsr.state.mn.us/maps/
Metropolitan Regional Sources: Metropolitan Council of the Twin Cities http://giswebsite.metc.state.mn.us/Default.aspx
University of Minnesota Sources: University of Minnesota U-Spatial https://research.umn.edu/units/uspatial
John R. Borchert Map Library https://www.lib.umn.edu/borchert/gis-data
University of Minnesota Center for Urban and Regional Affairs http://www.cura.umn.edu/
Federal Sources: USGS Minnesota Water Science Center http://mn.water.usgs.gov/infodata/ http://www.umesc.usgs.gov/states/m/mn_gis_data.html
National Weather Service GIS Portal http://www.nws.noaa.gov/gis/ U.S. Census Bureau http://www.census.gov/
Other Sources: Landsat (Free Minnesota Satellite Imagery) http://www.landsat.com/minnesota-free-gis-data.html