BI Intelligence breaks down the demographic of U.S. online and mobile shoppers by Gender, Age, Income, and Education.

Here are some most important about who shop online.

- Women drive shopping trends, control 80% of household spending.

- For e-commerce, men drive nearly as much spending online on the U.S. as women.

- Men more likely to make purchases on mobile devices.

- Consumers aged 18-34 were the key age demographic for online commerce, spending around $2,000 annually on e-commerce.

- Boomers and seniors have adopted mobile commerce.

- 55% of e-commerce shoppers in the U.S. live in households with incomes above $75,000. The median household income is around $50,000.