Amazon Prime members are younger and more affluent than the average American, and are more likely to do online research before making a purchase at a physical store.
A new report from Fung Global Retail & Tech, based on Prosper Insights and Analytics’ Amazon Shopper Intelligence Service, found that nearly four in 10 Amazon Prime members are under the age of 35, compared with 30% for the US population in general. Meanwhile, roughly two of three are in households with income upwards of $50,000 a year. In particular, Prime members are much more likely than the average consumer to have a household income above $100,000–28% vs. 19%. 

Sourced through Scoop.it from: retail.emarketer.com