Denton is a city in the U.S. state of Texas and the seat of Denton County. With a population of 139,869 as of 2020, it is the 20th-most populous city in Texas, the 177th-most populous city in the United States, and the 12th-most populous city in the Dallas–Fort Worth metroplex.

The Denton County Transportation Authority (DCTA) is the transit authority that operates in Denton County, Texas. It operates transit service in three cities within Denton County, as well as the A-train, a regional commuter rail line to Carrollton. In 2023, the system had a ridership of 2,852,000, or about 12,100 per weekday as of the fourth quarter of 2023.