Mountain Brook is a city in southeastern Jefferson County, Alabama, United States, and a suburb of Birmingham. Its population at the 2010 census was 20,413. It is one of the state's most affluent places.
The city was originally developed in 1929 by real-estate businessman Robert Jemison, Jr., as an extensive residential subdivision along the ridges known as Red Mountain and Shades Mountain. It was incorporated on May 24, 1942. The plans, by Boston-based landscape architect Warren H. Manning, called for estate-sized lots along winding scenic roads and denser commercial development centering on three picturesque "villages": English Village, Mountain Brook Village and Crestline Village. Most of Mountain Brook's development preserved the existing trees: 92.03% is under tree cover, one of the highest ratios in the nation. Residential sections such as Cherokee Bend, Brookwood Forest, Overton, and Crestline have houses in a forest setting, with a recreational network of bridle paths. This has protected the area from urban encroachment.
Mountain Brook is the location of the first office park in the U.S., built in 1955. It featured the then novel concepts of ample free parking and low-profile office buildings surrounded by waterspouts and landscaped grounds.
A new city hall, including a fire and police station, was completed in 2013.
The city is located at 33°29′13″N 86°44′26″W (33.486972, −86.740465).
According to the U.S. Census Bureau, it has a total area of 12.2 square miles (32 km2), all land.