CNN/Money: Highest income zip codes
Note the trend--rapid increase in "fast-growing areas in the West, such as Nevada." That means places with high concentrations of HOA-run subdivisions. Too bad the list they published stops before they got to the West--all I see are the "post suburbs" of the Frost Belt. Nice to see that nearby--well, at least not too far away--Kenilworth came in first. Go, Chicagoland.

Here are the U.S. communities with the highest percentage of six-figure income earners, according to OnBoard LLC, which created this list based on statistics collected from government and commercial sources.

The number is increasing quickly, especially in fast-growing areas in the West, such as Nevada.Still, most zip codes where the greatest majority of the households have six-figure income are found in long-settled, posh suburbs in the Northeast.