Oruro has some decent midrange business-style hotels, but little in the way of luxury accommodations. Budget lodgings can be bitterly cold at night.
Accommodations are often booked solid during Carnaval, when there’s also a three-night minimum stay. It’s wise to reserve well ahead of time or ask the tourist office about rooms in local homes. Expect to pay up to five or six times the usual price for a room.