Mountain Brook, Alabama Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Mountain Brook, Alabama is 22,160 as of the 2023 American Community Survey, making it the 29th-largest city in Alabama. The median household income is $191,128, the median home value is $891,300, and the median age is 41.5.
The population has grown 6.2% since 2010 (20,441 → 21,701).
22,160
Population
1726
People / sq mi
$191,128
Median Income
$891,300
Median Home Value
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Mountain Brook covers 12.8 sq mi of land at 1726 people per square mile.
About Mountain Brook, AL
Educational attainment is the headline number in Mountain Brook: 88.4% of adults 25 and older have a four-year degree. Mountain Brook is a city in Alabama with a population of 22,160. It ranks #29 among cities in Alabama by population.
Income is a real outlier — the median household pulls in $191,128, putting Mountain Brook near the top of US cities. Poverty is relatively low for US cities at 3.3%, below the national 12.4%. Housing is expensive: the median home is worth $891,300, with typical rent around $1,444.
Degree attainment is near the top of the range for US cities: 88.4% of adults 25+ hold a bachelor’s, above the 35.0% national rate. A solid 16.5% of workers are based at home, above the national 14.0%, and the average commute runs about 18 minutes each way.
The education numbers are the throughline: a college-heavy population in Mountain Brook usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Mountain Brook city Population History (2010-2024)
The city of Mountain Brook city had a population of 20,441 in 2010 and 21,701 in 2024, a 6.2% growth over 14 years. The peak was 22,504 in 2020. Average annual growth rate: 0.47%.
21,701
Population (2024)
20,441
Population (2010)
22,504
Peak (2020)
0.47%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 20,441 |
| 2011 | 20,428 |
| 2012 | 20,356 |
| 2013 | 20,299 |
| 2014 | 20,648 |
| 2015 | 20,607 |
| 2016 | 20,517 |
| 2017 | 20,430 |
| 2018 | 20,373 |
| 2019 | 20,297 |
| 2020 | 22,504 |
| 2021 | 22,243 |
| 2022 | 21,969 |
| 2023 | 21,784 |
| 2024 | 21,701 |
Race & Ethnicity
| White | 96.5% |
| Black or African American | 0.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.4% |
| Two or More Races | 0.0% |
Economy & Income
$191,128
Median Household Income
$112,074
Per Capita Income
3.3%
Poverty Rate
0.6%
Unemployment Rate
Housing
$891,300
Median Home Value
$1,444
Median Rent
89.5%
Owner-Occupied
Education
99.7%
High School+
88.4%
Bachelor's+
Commute
0.0%
Drive Alone
80.2%
Public Transit
16.5%
Work From Home
17.7 min
Avg Commute
Community Profile
33.1%
Foreign Born
96.8%
Non-English at Home
4.4%
Veterans
5.4%
With Disability
99.3%
Health Insurance
99.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.3% |
| Finance, Insurance & Real Estate | 20.6% |
| Information | 19.6% |
| Education, Health Care & Social Services | 5.3% |
| Construction | 5.2% |
| Manufacturing | 4.7% |
| Arts, Entertainment & Food Services | 3.6% |
| Public Administration | 3.1% |
| Transportation & Warehousing | 2.2% |
| Retail Trade | 1.9% |
| Agriculture & Mining | 0.1% |
Largest cities in Alabama
Largest counties in Alabama
Part of Alabama
Metro areas in Alabama
City rankings
Frequently Asked Questions
Mountain Brook, Alabama has a population of 22,160 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 29th-largest city in Alabama.
The median household income in Mountain Brook, Alabama is $191,128, with 3.3% of residents living below the federal poverty level.
The median home value in Mountain Brook, Alabama is $891,300, with median monthly rent at $1,444 and a homeownership rate of 89.5%.
The median age in Mountain Brook, Alabama is 41.5 years. The population is 49.1% male and 50.9% female.
The population has grown 6.2% since 2010 (20,441 → 21,701).
Where to stay in Mountain Brook
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.