Which American weekly business magazine labeled Potomac () as twenty-ninth richest zip code in the United States in 2011?
Potomac, Maryland Potomac (   ) is a census-designated place (CDP) in Montgomery County, Maryland, United States, named for the nearby Potomac River. In 2013, CNNMoney.com listed Potomac as the most affluent town in all the United States based on median household income. Potomac is also the seventh most top-educated American small town according to "Forbes." Bloomberg Businessweek labeled Potomac as the twenty-ninth richest zip code in the United States in 2011, stating that it had the largest population of any U.S. town with a median income of more than $240,000. In 2012, The Higley Elite 100 published a list of highest-income neighborhoods by mean household income, which included four neighborhoods in Potomac; one of these neighborhoods, "Carderock-The Palisades" was ranked the highest-income neighborhood in the United States, followed by "Beverly Hills-North of Sunset" in Beverly Hills, CA, and "Swinks Mill-Dominion Reserve" of McLean, VA. More recently, two Potomac neighborhoods were ranked among the ten wealthiest neighborhoods in the country by CNBC in 2014. Many Potomac residents work in nearby Washington, D.C.
Naperville, Illinois Naperville ( ) is a city in DuPage and Will counties in the U.S. state of Illinois, and a suburb of Chicago. In a 2010 study assessing cities with populations exceeding 75,000, Naperville was ranked as the wealthiest city in the Midwest and the eleventh wealthiest in the nation. It was ranked among the nation's safest cities by USAToday and Business Insider. Naperville was voted the second-best place to live in the United States by "Money" magazine in 2006 and it was rated first on the list of best cities for early retirement in 2013 by Kiplinger. As of the 2010 census, the city had a population of 141,853, which was estimated to have increased to 147,100 by July 2015. It is the fifth-largest city in Illinois.