http://tags.library.upenn.edu/tag/census+errors PennTags Feed http://tags.library.upenn.edu/makerecord/url/8065 http://tags.library.upenn.edu/makerecord/url/8065 A Washington Post article about the large upward revision in the population estimate for Washington DC in 2005. The city challenged the 2005 estimate and won the challenge.<br />