The Geography Of Zipcodes
The Interactive ZipScribble Map connects all the Zip or postal codes inward a solid soil inward ascending order. The resulting map provides a visual representation of how countries only about the earth conform or fellowship their postal service code systems.
If y'all sentiment the ZipScribble map of the USA, y'all tin make the sack forthwith come across that zipcode density appears to closely follow population density (the to a greater extent than people that in that place are inward an expanse as well as hence the to a greater extent than zipcodes in that place are).
As I sympathise it the starting fourth dimension digit of a U.S. zipcode represents the state. If y'all plough on the colors on the map y'all tin make the sack come across that zipcodes produce indeed seem to rest inside province lines.
Use the drop-down carte beneath the map to sentiment the postal code maps for other countries. There are maps for 38 dissimilar countries inward all.