is a city in southeastern Jefferson County, Alabama, United States. It is a suburb of Birmingham, located on the other side of Red Mountain due south of the city center. It has one of the highest population densities in Alabama. As of 2005 Census Bureau estimates, the population of the city is 23,963.
According to the U.S. Census Bureau, the city has a total area of 8.3 square miles (21.5 km²), all of it land.