October 3, 2009

United States : U.S. Census, TIGER/Line® Shapefiles

Posted by cmaene under Boundaries, US, Census & Demographics, US, Hydrography, US, Japan, Kenya, Land Trans. US, Puerto Rico, Virgin Islands | Tags: , , , , , , |
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http://www.census.gov/geo/www/tiger/tgrshp2009/tgrshp2009.html
(or directly from http://www2.census.gov/geo/tiger/)

New! 2009 version just came out on 10/1/09! Previous versions are also linked from this site.

The TIGER/Line Shapefiles are extracts containing selected geographic and cartographic information from the Census Bureau’s MAF/TIGER® database. Unlike the previous Cartographic Boundary Files site, this site includes block boundary files as well as hydrography, transportation/streets and landmark data files. Users can also download multiple TIGER/Line Shapefiles at a time via this FTP site.

Again, these files contain no demographic information but are designed to be used with decennial census population and housing data as well as other related federal datasets.

 

November 30, 2008

Chicago : City of Chicago, GIS Data

Posted by cmaene under Chicago | Tags: , , , , , , , , , , , , |
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http://www.cityofchicago.org/gis

City of Chicago GIS dataset, printable maps and interactive maps are available from this site. To access GIS data files, click on “GIS Data” or select categorized datasets.

Note: Come back often to this site to get the latest data – the City of Chicago GIS irregularly updates data files – and you cannot tell which files were updated until you download data and compare!  For example, well sought after geocodable Chicago streets shapefiles, TRANSPORTATION_DSLV_1.zip, are now available from the site. Still, no metadata comes with the files..

Datasets available from the site area are categorized into the following groups:

  • Base data
  • Boundary data
  • Incentive programs
  • Points of interest
  • Transportation Data