East Ridge is a city in Hamilton County, Tennessee, United States. As of the 2020 census, the city population was 22,167. East Ridge is bordered by Chattanooga to the west, north, and east, and the Georgia state line to the south. It is part of the Chattanooga, TN–GA Metropolitan Statistical Area. The name of the city comes from its location due east of Missionary Ridge. The Bachman Tubes beneath Missionary Ridge link East Ridge with downtown Chattanooga.

Hamilton County is a county located in the U.S. state of Tennessee. It is located in the southern part of East Tennessee on the border with Georgia. As of the 2020 census, the population was 366,207, making it the fourth-most populous county in Tennessee. Its county seat is Chattanooga, located along the Tennessee River. The county was named for Alexander Hamilton, the first secretary of the treasury.