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An area code belonging to the western Chicago suburbs refered to by residents as "the dirty six-thirty". Towns included in the 630 include: Addison, Aurora, Bartlett, Batavia, Bensenville, Bloomingdale, Bolingbrook, Carol Stream, Clarendon Hills, Darien, Downers Grove, Elmhurst, Geneva, Glen Ellyn, Glendale Heights, Hanover Park, Hinsdale, Itasca, Lemont, Lisle, Lombard, Naperville, Oak Brook, Oswego, Roselle, St. Charles, Streamwood, Villa Park, Warrenville, West Chicago, Westmont, Wheaton, Willowbrook, Winfield, Wood Dale, Woodridge, Yorkville.

It's a virtual Sodom and Gomorrah.
You gonna hook up tonight? Fo' shizzle she's from The Dirty Six-Thirty... A-town (Aurora).
by Indy's brother October 17, 2010
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