In 2020, Mountain Brook, AL had a population of 20.2k people with a median age of 42.3 and a median household income of $152,646. Between 2019 and 2020 the population of Mountain Brook, AL declined from 20,436 to 20,178, a −1.26% decrease and its median household income grew from $152,355 to $152,646, a 0.191% increase.
The 5 largest ethnic groups in Mountain Brook, AL are White (Non-Hispanic) (97.8%), Asian (Non-Hispanic) (1.2%), Black or African American (Non-Hispanic) (0.401%), Two+ (Non-Hispanic) (0.297%), and White (Hispanic) (0.287%).
None of the households in Mountain Brook, AL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.1% of the residents in Mountain Brook, AL are U.S. citizens.
In 2020, the median property value in Mountain Brook, AL was $666,500, and the homeownership rate was 88%. Most people in Mountain Brook, AL drove alone to work, and the average commute time was 17.1 minutes. The average car ownership in Mountain Brook, AL was 2 cars per household.