The 10 of 15 richest counties are around DC, because

來源: LAChinese 於 2012-05-17 14:20:35 [] [舊帖] [給我悄悄話] 閱讀數 : (292 bytes)

Fed government spends our tax money there.

10 of 15 richest, or 4 of top 5 richest are around DC:

http://www.thestreet.com/story/11415107/1/the-richest-counties-in-america.html

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