Mountain Brook

County:: Jefferson County
County Seat:: No
Area (mi²):: 12.841
State:: Alabama

Mountain Brook is a city located in Jefferson County, Alabama. Mountain Brook has a 2025 population of 21,223. Mountain Brook is currently declining at a rate of -1.2% annually and its population has decreased by -5.71% since the most recent census, which recorded a population of 22,508 in 2020.

The average household income in Mountain Brook is $302,510 with a poverty rate of 2.71%.The median age in Mountain Brook is 41.5 years: 40.6 years for males, and 42.6 years for females.

Demographics

The racial composition of Mountain Brook includes 96.46% White, and smaller percentages for Two or more races, Asian, Black or African American, other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	21,375	96.46%
Two or more races	434	1.96%
Asian	177	0.8%
Black or African American	95	0.43%
Other race	52	0.23%
Native American	27	0.12%

Mountain Brook Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mountain Brook's average per capita income is $107,393. Household income levels show a median of $191,128. The poverty rate stands at 2.71%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$250,001	-
Families	$243,385	$358,960
Households	$191,128	$302,510
Non Families	$74,006	$112,068

$107,393

Average Income

$191,128

Median Household Income

2.71%

Poverty Rate