A small portion of poll respondents don't seem to know where they live. At least, in DailyKos/SEIU/PPP polling, approximately 5-9% misidentify their region (after weighting by age) depending on the region. This has been a minor mystery for a while now, and, indeed, the wording of the question was changed mid-2011 to reduce possible misunderstandings, but to little if any effect; see David's post here for more. So how do we solve this mystery? [Update] Or, to succinctly and properly reframe the question as Garrett did in the comments: Everyone knows where they live. Why does the poll misreport it?
To define the problem more precisely, what is seen is that those with area codes in unambiguous regions do not always report that they live in said region. For example, of those who live in the Northeast, about 3% said they live in the Midwest, 2% said they live in the South, and 1% said the live in the West.
