Choose Index below for a list of all words and phrases defined in this glossary.
Enumeration Districts - The small geographic areas assigned by the U.S. Census Bureau. For these small areas and subblocks (with an average of about 140 families), the census publishes a huge volume of median demographic data. There are some 400,000 enumeration districts and subblocks. The 9-digit zip code has made these far less important as there are over 19,000,000 separate 9-digit zip codes or one for every 6.5 mailable addresses in America (both households and non-households).
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Source: Postcom, 03 March 2010 10:43:35, http://postcom.org/public/admail_image/glossary.htm
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