Explained: US Census Geographic Units
This web page offers a fantastic explanation of the different US Census Bureau geographic units – check it out. From smallest (census blocks) to largest (states), you can learn how many of each unit there are, how often they change and more…..
http://www.caliper.com/Maptitude/Census2000Data/SummaryLevels.htm
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Category: Cool Ideas and Sites | Tags: Census Boundaries, census tract maps
