Justin, Texas is located at the intersection of Farm roads 407 and 156, five miles north of highway 114 and the Texas Motor Speedway.

The area was originally settled by a band of French colonists who, in 1848, established the Icarian Colony. The community was abandoned a year later, and the area remained sparsely populated until the early 1880s.

Justin began in 1883, with the sale of town lots owned by Chet Helm and a man named Riley. Within the year, a general store opened and the community became a center for farmers. Four years later, the Santa Fe extended its line from Fort Worth to Purcell, Oklahoma, laying tracks near the growing community. In January 1887, the community petitioned postal authorities for a post office to be named Justin, in honor of Justin Sherman, chief engineer of the Santa Fe line. By 1896, it had a population of 100, a general store, a grocery, a hotel, and a cotton gin. The addition of grain elevators, frozen-food lockers, and paved roads established Justin as a shipping point for agricultural products. The town's population increased from 476 in 1904 to 700 in 1941,and in 1947, Justin was incorporated. In 1980, the population was reported as 920. By the end of 2006, the population grew to 2,900 and is expected to grow at a steady pace over the next 20 years. With easy access to Interstate Highway 35 and highway 114, residents have little difficulty working in nearby Denton and Fort Worth. The recent growth of the Alliance corridor has added many employment opportunities to the area. Justin is proud to be in the award winning Northwest ISD School District including Justin Elementary within the city limits.