Rains County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 12,164. Its seat is Emory. The county are named for Emory Rains, a Texas state legislator.

Texas's 4th congressional district of the United States House of Representatives is in an area of Northeast Texas, that includes some counties along the Red River northeast of the Dallas/Fort Worth Metroplex, as well as some outer eastern suburbs of the Metroplex. Austin College in Sherman, Texas is located within the district. As of 2017, the 4th district represents 747,188 people who are predominantly white (80.8%) and middle-class . It is currently represented by Pat Fallon.