Justin is a city in Denton County, Texas, with some of it rolling over into Wise County, TX. The population was 3,246 at the 2010 census.
Contrary to popular belief, the town is not named after or related to the Justin Boot Company (although the company operates a large outlet store in the city). In January 1887 the community petitioned postal authorities for a post office to be named Justin, in honor of Justin Sherman, a chief engineer with the Santa Fe Railroad.
Justin once was a center of salvage companies, which buy property involved in fires and tornadoes and sell it for discounted prices. In the late 1970s Western wear became very popular, and the Wallace family's salvage operations began to focus on Western wear. The other two major salvage businesses closed, and the salvage industry disappeared.
The Texas Motor Speedway had a Justin mailing address until July 9, 2005. Because it is physically located in the city of Fort Worth, the United States Postal Service changed the mailing address to Fort Worth, Texas.
According to the United States Census Bureau, the city has a total area of 2.4 square miles (6.2 km2), all of it land.
Some areas along FM 156 and Hwy 114 use the Justin ZIP code (76247) even though the land is within the City of Fort Worth.
Justin is within the Northwest Independent School District. Residents are zoned to Justin Elementary School, Pike Middle School, and Northwest High School.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters.