Texas Tech University is located in Lubbock, Texas. Details:

• Main campus address: 2500 Broadway, Lubbock, TX 79409, United States. This is the central mailing and physical address for the university, with individual departments having their own mailing details. [internal reference: TTU contact page]
• About the campus: Texas Tech is a public research university founded in 1923 (originally as Texas Technological College) and serves as the flagship institution of the Texas Tech University System. The main campus sits in Lubbock, with additional campuses and centers associated with the system. [institutional overview sources]
• Nearby context: Lubbock is a city in northwestern Texas that hosts the university and supports a sizeable student population and regional campus activities. [regional information sources]

If you need directions to the campus, a specific department’s mailing address, or more details about the university’s campus locations, I can provide that as well.