Most Americans know their ZIP code by heart. They type it into online forms, scribble it on envelopes and memorize it as part of their address. But not everyone knows the original meaning of the term.

Dear Readers: Johnnie expects to have a fresh column next week. Here’s a column that was published originally on July 2, 2012. Dear Johnnie: I have many little questions on the same topic. What are ...

Milwaukee’s 53206 may be the most famous -- or perhaps infamous -- ZIP code in Wisconsin. When Milwaukee’s ills -- crime, poverty, poor housing -- are measured in studies, the ZIP code frequently ...