List of sundown towns in the United States

A sundown town is a municipality or neighborhood within the United States that practices or once practiced a form of racial segregation characterized by intimidation, hostility, or violence among White people directed toward non-Whites, especially against African Americans. The term "sundown town" derives from the practice of White towns then erecting signage alerting non-Whites to vacate the area before sundown.

Source: Wikipedia — List of sundown towns in the United States (CC BY-SA 4.0)