where are highest average incomes found in north america
Presented below are the 25 wealthiest counties (with populations of 65,000 or greater) in the United States by median household income according to the 2012 American Community Survey prepared by the US Census Bureau. Six of the counties are located in the state of Maryland, five are in Virginia, four in New Jersey, three in New York, two in California, and one each in: Colorado, Georgia, Michigan, Tennessee, and Texas.