asked byon 3/6/18
The main store is located in Midvale, Utah.
They must have warehouses all over the country however some places won't let you due to liability depending how big the package is. It's worth the phone call and a bit if googling.
Overstock does mainly online ordering & shipoing so picking up your order may decrease the work load of their employees of their delivery folks so that's lost wages for them.