Sunset is an unincorporated community in Montague County, Texas, United States. Until 1900, a surveying error had placed the community in Wise County. The Fort Worth and Denver Railway runs through Sunset. The population was 339 at the 2000 census. The city disincorporated on April 19, 2007.

Montague County is a county located in the U.S. state of Texas, established in 1857. As of the 2020 census, its population was 19,965. The county seat is Montague. The county was created in 1857 and organized the next year. It is named for Daniel Montague, a surveyor and soldier in the Mexican–American War.