These Are the Wealthies Counties in the US

7. Douglas County, CO

One of Colorado's 17 original counties, Douglas County is often considered one of the best places to live. Ranked 4th best place for quality of life in the US by American City Business Journals in 2004, most of its residents actually commute to bigger, metropolitan towns outside of the county. Douglas County has a population of 335,299, a median household income of $111,482, and 77.9% of people own their own homes. 15.3% of these homes earn more than $200,000 a year, with more than 25,500 people working in science and technology.