Look up any Zip Code here, get lots of cool demographic data by entering it here (make sure you enter a zip code, not just a town and keep scrolling down, down, down). [more inside]
posted by Rafaelloello on May 10, 2008 - 27 comments

Two visualization projects: All of the streets in the lower 48 United States: an image of 26 million individual road segments. No other features (such as outlines or geographic features) have been added to this image. And zipdecode, a unique map of US zipcodes.
posted by desjardins on May 2, 2008 - 23 comments

Zipskinny Enter your zip code and get US census info-plus compare with other zip codes.
posted by konolia on Oct 17, 2007 - 48 comments

The US ZIPScribble map.
posted by Kwantsar on Jan 7, 2007 - 11 comments

The Official Web Site of the Zipcode Man will help us clear our mental palates.
posted by mmahaffie on Sep 4, 2004 - 9 comments

Toxic Chemical Dump report by ZIP code. The U.S. Public Interest Research Group has organized information from the EPA on toxic chemical releases. You can get maps of different types of chemicals (carcinogens, reproductive toxins, dioxins, etc.) released by state, download Excel spreadsheets by state organized by ZIP code, or download their complete report. I think this is just for the 2000 calendar year. (via The Wall Street Journal)
posted by meep on Jan 23, 2003 - 12 comments

Ever wonder why junk mail comes to your mailbox? Enter your zip code (US only) to see where your neighborhood fits in marketing categories.
posted by MidasMulligan on Mar 18, 2002 - 17 comments

Need free Internet Access? Head to your local library or community center. This page allows you to type in a zipcode and find out where you can access (or learn about) the internet, usually for free. If you know someone in your neighborhood who isn't connected and might like this info, why not print out the page and give it to them?
link spotted at follow me here
posted by chaz on Jul 18, 2001 - 6 comments

The J.W. Westcott II delivers toilet paper, the occasional pizza, and, most importantly, mail to freighters making their way through the Great Lakes. And now it's the only boat in the U.S. to be assigned it's own zip code.
posted by Oriole Adams on Jun 30, 2001 - 6 comments