Free Data for US States

Free US State GIS Sources

State sites

Country sites

State	Map Data Online
AK	http://www.asgdc.state.ak.us/ http://agdc.usgs.gov/data/ http://maps.dggs.alaska.gov/lidar/#-16000000:9338001:4 http://maps.dggs.alaska.gov/elevationdata/#-16000000:9338001:4 http://www.dggs.alaska.gov/pubs/id/22722 High-resolution lidar data for Alaska infrastructure corridors http://portal.aoos.org/#module-search?page=1&tagId=65&q= topography and bathymetry
AZ	Pima County: http://www.dot.pima.gov/gis/ftp/overview.cfm has 277 layers in shape file format
CA	San Francisco: https://data.sfgov.org/ Sonoma County lidar: http://sonomavegmap.org/ http://walrus.wr.usgs.gov/mapping/csmp/gis.html offshore bathy, high res grids
CO
CT	http://magic.lib.uconn.edu http://magic.lib.uconn.edu/historical_maps.htm
DC	http://opendata.dc.gov/ Lidar: http://geospatial.dcgis.dc.gov/templates/dcfinder/s2.html?appid=62c9607bcfb349d5988e39390d50e995
DE	http://stateplanning.delaware.gov/dgdc/
FL	http://www.labins.org --DRGs, DOQQs http://www.floridadisaster.org/gis
GA	https://data.georgiaspatial.org/login.asp?CookieTest=2 (must register)
HI	http://www.hawaii.gov/dbedt/gis/ http://www.vterrain.org/Hawaii/DRG/drg.html http://www.soest.hawaii.edu/coasts/data/index.html
IA	http://ortho.gis.iastate.edu/ http://www.iowadatacenter.org/ state census data
ID
IL
IN	http://www.indiana.edu/~gisdata/
KS	http://www.kansasgis.org/
KY	http://kygeonet.ky.gov/ http://kymartian.ky.gov/demwebusgs/index.html (DEMs in SPCS) ftp://ftp.kymartian.ky.gov/DEM_UTM (UTM DEMs)
LA	http://atlas.lsu.edu/ http://atlas.lsu.edu/lidar/
MA	http://www.state.ma.us/mgis/laylist.htm http://www.mass.gov/mgis/massgis.htm http://www.mass.gov/mgis/download.htm http://www.mass.gov/mgis/colororthos2005.htm Lidar: https://docs.digital.mass.gov/dataset/massgis-data-lidar-terrain-data
MD	http://dnrweb.dnr.state.md.us/gis/data/ http://dnrweb.dnr.state.md.us/gis/data/data.asp http://www.mdmerlin.net/ http://www.mgs.md.gov/coastal/maps/schangevect.html Historic shorelines Anne Arundel County: http://www.aacounty.org/land-use/Land_Use__Reports/county-maps--gis-data http://www.mdp.state.md.us/ Lidar point clouds: http://lidar.geodata.md.gov:8080/ExpressZip http://imap.maryland.gov/Pages/lidar-download.aspx
ME	http://megis.maine.gov/catalog/ http://www.seagrant.umaine.edu/coastal-hazards-guide/maps-and-resources
MI	http://www.mcgi.state.mi.us/mgdl/ (Much of the Michigan data uses a currently unsupported and unique state plane coordinate projection) http://www.mcgi.state.mi.us/mgdl/?action=thm Detroit: https://data.detroitmi.gov/
MN	http://deli.dnr.state.mn.us/ --Department of Natural Resources data downloads http://www.mngeo.state.mn.us/chouse/elevation/lidar.html DNR Lidar ftp://ftp.lmic.state.mn.us/pub/data/elevation/lidar/
MO	http://www.msdis.missouri.edu/
MS
MT
NB
NC	http://www.cgia.state.nc.us/DataResources/tabid/55/Default.aspx http://www.ncfloodmaps.com/--20 m and 50 ASC grids which MICRODEM displays, and raw XYZ files for bare earth which could be imported into the TIN module or gridded with GMT.
NH	http://www.granit.unh.edu/ http://www2.des.state.nh.us/gis/onestop/
NJ	https://njgin.state.nj.us/NJ_NJGINExplorer/index.jsp
NM	http://sar.lanl.gov/maps_by_name.html --DRGs http://rgis.unm.edu
NV	Clark County, NV: http://gisgate.co.clark.nv.us/openweb/asp/openweb.asp Keck Library: http://keck.library.unr.edu/datawarehouse.html
NY	PLUTO: NYC properties, http://www.nyc.gov/html/dcp/html/bytes/applbyte.shtml#pluto
OH	http://ogrip.oit.ohio.gov/ProjectsInitiatives/OSIPDataDownloads.aspx
OK	http://geo.ou.edu/cgi-bin/redesign.cgi?ft=db&template=DataState.htm&SORT=Subject,LayerName
OR	http://oregonexplorer.info/imagery/about/about.aspx?Res=17270 half meter imagery Oregon Lidar consortium http://www.oregongeology.org/sub/projects/olc/default.htm (data is apparently $200 per DVD; there is free data at OpenTopography)
PA	http://www.pasda.psu.edu/ http://www.pennpilot.psu.edu/
RI	http://www.rigis.org/
SC	LIDAR: http://www.dnr.sc.gov/GIS/lidar.html CLICK and NOAA have the LAS files
TN
TX	https://tnris.org/ http://magic.csr.utexas.edu/index.htm includes 2 m NAIP
UT	http://nrwrt1.nr.state.ut.us/quads/ (DOQs and DRGs) ftp://ftp.agrc.state.ut.us/DOQMrSid/
VA
VT	http://vcgi.vermont.gov
WA	http://wagda.lib.washington.edu/ http://lidarportal.dnr.wa.gov/ Geology: https://www.dnr.wa.gov/programs-and-services/geology/publications-and-data/gis-data-and-databases
WV	http://www.wvgis.wvu.edu/ http://www.wvgis.wvu.edu/data/data.php
WY	http://www.sdvc.uwyo.edu/

Last revision 1/17/2018