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Downloadable Public Access Data

American Geographic Society Library Located on the UW-Milwaukee Campus, the AGS Library is a world-renowned research and reference library dedicated to the analysis, preservation and acquisition of geographic data. Moved to Useful Links Page


Federal Sites:

National Geospatial Data Clearinghouse This is a national collection of over 250 spatial data servers.

USGS The GEO-DATA Explorer is a site to access, view, and download data supported by the USGS. Another USGS website is the National Map Seamless Data Distribution System , an interactive website that generates downloadable maps.

Bureau of Transportation Statistics   Besides transportation data, this site has dataset on urbanized areas. Two shapefile links include 2002 National Transportation Atlas Data Shapefile Download Center and Dynamap/1000 Street Shapefile Download Center .  These sites provides access to downloadable datasets for selected states and the entire nation.

Geospatial One Stop   Sponsored by the Federal Office of Management and Budget (OMB), this site is maintained to facilitate easier, faster and cheaper access to geospatial data for all levels of government and the public at large.

Environmental Protection Agency This page offers GeoSpatial Data Clearinghouse, but also offers a link to Spatial Data and Applications - EnviroFacts Warehouse, and BASINS site. Check out Environmental Information Management System page.

US Fish and Wildlife Service GIS and Spatial Data Contains national and state datasets.

National Park Service GIS Contains links to datasets and an interactive map center of national parks.

Jet Propulsion Laboratory - U.S. and worldwide orbital imagery and thermography; links to NASA and foreign space agencies involved in cooperative mapping projects.  Some data not publicly distributed. 


Census Data Sites:

National Links:

US Census Bureau Can also link to TIGER files via www.census.gov/geo/www/tiger/index.html

Department of Housing and Urban Development Policy Development and Research Information Service sponsored datasets. A wide range of datasets concerning housing, income, and lending information.

Wisconsin State Links:

Wisconsin Land Information Clearinghouse This is Wisconsin's geospatial clearinghouse, and has links to data and to resources such as the WISCLINC county catalog.

Applied Population Laboratory This site contains links to WisStat, an online demographic dataserver. The APL is a research group associated with the University of Wisconsin-Madison, that provides demographic and economic data, and is the coordinating agency of the Wisconsin State Data Center. 

State of Wisconsin Department of Administration - State Data Center This site provides links to census data available in PDF or Excel format. The Demographics Services Center has data pertaining to population and housing, providing links to downloadable data in Excel format and maps.

Wisconsin Department of Transportation - Link to Obtain Data from WisDOT in both digital and hardcopy formats, and Downloadable County Maps (not data, just maps).

Map Milwaukee This site offers data on City of Milwaukee properties using the Master Property Record database (MPROP).

COMPASS The City of Milwaukee's online database that provides information and maps on properties and neighborhoods.


Other Resources:

ESRI This site contains some free downloadable datasets, including ESRI's free World Basemap Data.