Creating the Lowly Zip Code Map

That is the definition of a ZIP code. It states nothing about boundaries or areas. The lowly ZIP code was invented to help mail sorting and delivery. But because the ZIP code does represent, in general, a delivery area, third parties got involved and began assigning area boundaries to many of the 41,024 ZIP codes. These boundaries can vary, although in general, all the parties agree on the boundary layout. Regardless of boundary accuracy, the ZIP code map is one of the most popular forms of business mapping.