Mountain Brook Flag

Mountain Brook

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.

21.2K
Total Population
1,653
Density (mi²)
-257 -1.2%
Growth

Mountain Brook Population

Mountain Brook Population

Data after 2023 is projected based on recent change

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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White21,37596.46%
Two or more races4341.96%
Asian1770.8%
Black or African American950.43%
Other race520.23%
Native American270.12%
Native Hawaiian or Pacific Islander00%

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

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)