Walmart's 158 distribution centers are hubs of activity for our business. Our distribution operation is one of the largest in the world. Walmart logistics has a fleet of 6,500 tractors, 55,000 trailers and more than 7,000 drivers.1  A regional distribution center can have up to 12 miles of conveyor belts, which can move hundreds of thousands of cases through the facility each day.almart has stores in 50 states and Puerto Rico offering low prices on the broadest assortment of products through a variety of formats including the Supercenter, Discount Store and Neighborhood Market.