Walmart announced that it plans to expand its online grocery delivery service to more than 100 metro areas around the country. The company says the service will be available to more than 40 percent of U.S. households by year-end.

Currently Walmart’s grocery delivery service is available in six markets, where customers can receive their orders the same day in some cases. The fee is $9.95 and the minimum order is $30.

According to reports, Walmart already employs more than 18,000 personal shoppers and will hire thousands more.

Walmart also offers online grocery pickup, where customers order groceries online and pick them up at stores without having to get out of their cars. This service is currently available in 1,200 stores throughout six markets, and the company plans to add the service to 1,000 more stores this year.