Cartographic Boundary Files

Download Generalized Cartographic Boundary Files
Click on the year/vintage next to the boundary file type you want to download.

Alaska Native Regional Corporations: 2000
American Indian Areas/Alaska Native Areas/Hawaiian Home Lands: 2000 | 1990
American Indian Tribal Subdivisions: 2000
Census Block Groups: 2000 | 1990
Census Divisions: 2000
Census Regions: 2000
Census Tracts: 2000 | 1990
Congressional Districts: 110th | 109th | 108th | 107th | 106th | 105th | 104th | 103rd
Consolidated Cities: 2000
County and County Equivalent Areas: 2000 | 1990
County Subdivisions: 2000 | 1990
Incorporated Places/Census Designated Places: 2000 | 1998 | 1990
Metropolitan and Micropolitan Statistical Areas: 2003 | 1999 | 1998 | 1996 | 1990
New England County Metropolitan Areas: 2000
New England City and Town Areas: 2003
Oregon Urban Growth Areas: 2000
Public Use Microdata Areas - 1 Percent: 2000
Public Use Microdata Areas - 5 Percent: 2000
School Districts - Elementary: 2000
School Districts - Secondary: 2000
School Districts - Unified: 2000
State and State Equivalent Areas: 2000 | 1990
State Legislative Districts - Lower/House: 2006 | 2000
State Legislative Districts - Upper/Senate: 2006 | 2000
Subbarrios (Puerto Rico Only): 2000
Traffic Analysis Zones: 2000
Tribal Block Groups: 2000
Tribal Census Tracts: 2000
Urban Areas: 2000 | 1990
Voting Districts: 2000
3-Digit ZIP Code Tabulation Areas (ZCTAs): 2000
5-Digit ZIP Code Tabulation Areas (ZCTAs): 2000

The above information is taken from : http://www.census.gov/geo/www/cob/bdy_files.html
This information is only targeting gis developers across the web.