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2. Alabama Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama Block Groups represents the U.S. Census block groups of Alabama. Environmental Systems Research Institute, Inc. (ESRI).

3. Alabama Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Alabama. Environmental Systems Research Institute, Inc. (ESRI).

4. Alaska Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska Block Groups represents the U.S. Census block groups of Alaska. Environmental Systems Research Institute, Inc. (ESRI).

5. Alaska Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Alaska. Environmental Systems Research Institute, Inc. (ESRI).

6. Arizona Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Arizona Block Groups represents the U.S. Census block groups of Arizona. Environmental Systems Research Institute, Inc. (ESRI).

7. Arizona Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Arizona Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Arizona. Environmental Systems Research Institute, Inc. (ESRI).

8. Arkansas Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Arkansas Block Groups represents the U.S. Census block groups of Arkansas. Environmental Systems Research Institute, Inc. (ESRI).

9. Arkansas Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Arkansas Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Arkansas. Environmental Systems Research Institute, Inc. (ESRI).

10. Atlanta Regional Commission Georgia Congressional Districts

Polygon Harvard University Restricted content
1999. Atlanta Regional Commission (ARC). This polygon datalayer depicts boundary polygons depicting U.S. Congressional Districts in the state of Georgia as drawn by the United States Distr...

11. Atlanta Regional Commission Georgia State Senate Districts

Polygon Harvard University Restricted content
1999. Atlanta Regional Commission (ARC). This polygon datalayer depicts the State of Georgia's Senatorial Districts as adopted by the Georgia General Assembly in 1999. Used to delineate vo...

12. California Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). California Block Groups represents the U.S. Census block groups of California. Environmental Systems Research Institute, Inc. (ESRI).

13. California Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). California Tracts represents the U.S. Census tracts and block numbering areas (BNA) of California. Environmental Systems Research Institute, Inc. (ESRI).

14. Colorado Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Colorado Block Groups represents the U.S. Census block groups of Colorado. Environmental Systems Research Institute, Inc. (ESRI).

15. Colorado Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Colorado Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Colorado. Environmental Systems Research Institute, Inc. (ESRI).

16. Connecticut Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Connecticut Block Groups represents the U.S. Census block groups of Connecticut. Environmental Systems Research Institute, Inc. (ESRI).

17. Connecticut Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Connecticut Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Connecticut. Environmental Systems Research Institute, Inc. (ESRI).

18. Delaware Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Delaware Block Groups represents the U.S. Census block groups of Delaware. Environmental Systems Research Institute, Inc. (ESRI).

19. Delaware Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Delaware Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Delaware. Environmental Systems Research Institute, Inc. (ESRI).

20. District of Columbia Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). District of Columbia Block Groups represents the U.S. Census block groups of District of Columbia. Environmental Systems Research Institute, Inc. (ESRI).