Heartland Express, Inc. is a holding company. The Company is a short-to-medium haul truckload carrier. The Company focuses primarily on short- to medium-haul, asset-based dry van truckload services in regional markets near its terminals. The Company's truckload services are primarily asset-based transportation services in the dry van truckload market, and it also offers truckload temperature-controlled transportation services and non-asset based brokerage services. All tractors are equipped with mobile communication systems. Its primary customers include retailers and manufacturers. It provides nationwide asset-based dry van truckload service for shippers from Washington to Florida and New England to California. The Company provides truckload services across the United States and parts of Canada. As of December 31, 2016, it had operated 20 terminal facilities throughout the contiguous United States in addition to its terminal and corporate headquarters in North Liberty, Iowa.