The U.S. census drives business intelligence in America today and if you have ever examined demographics about consumers, you are likely an indirect user of census data.

Washington D.C. is increasingly drawing in the young and the wealthy, according to Nielsen Claritas. A new demographic spotlight finds that 16 of the top 50 counties where the highest concentration of the young and wealthy live are in the Washington D.C. area.

Loyal customers provide businesses with a steady revenue stream, higher profit margins and confirmed evangelists who virtually—and virally—do much of their marketing for them. Segmentation methods are driving increased ROI among best-fit customers.