Can you guess which areas of Maricopa County are the richest? Probably. Can you afford a home there? Probably not!

That makes it the region's fifth highest-earning ZIP code, the data shows. Nearby Wynnewood (19096) has an average annual ...

Editor's Note: The Business Journals evaluated almost 33,200 ZIP codes to compile its new wealth index. The wealthiest ZIP codes rankings are intended to capture the greatest concentrations of wealth.

Methodology: The Business Journals evaluated almost 33,200 ZIP codes to compile its new wealth index. The wealthiest ZIP codes rankings are intended to capture the greatest concentrations of wealth.

Wealth in the Philadelphia region is still concentrated around Center City, though several Chester County ZIP codes earning top ten spots in specific categories, writes Todd Romero for the ...