When you choose where to live, open a store, allocate a public budget or design a marketing campaign, population data by ZIP code is often the missing piece that makes your decision truly data‑driven.

PHOENIX — In Maricopa County, the rich are getting richer and the poor are getting…slightly less poor. According to newly released census data, the zip codes in the valley that have seen the largest ...

Editor’s Note: Steve DuScheid is marketing director of Maponics, a developer of polygonal map data, such as neighborhood boundaries, ZIP codes and school attendance zones. Every year, federal and ...

Your ZIP code -- originally developed to efficiently direct mail to your home -- might be telling other people, especially people who want to sell you something, more about you than you might expect.