Mountain Brook, Alabama Demographics & Population 2026
During the 2020–2024 ACS period, Mountain Brook, Alabama had a total population of 22,029, the 30th largest city in Alabama, with a median household income of $201,479, which is 215% higher than the state average. The poverty rate is 3.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 215% above the state average — one of the wealthiest communities in Alabama.
- An exceptionally low poverty rate of 3.2% — among the lowest in Alabama.
- 88.6% of adults hold a bachelor's degree or higher — top 10% in Alabama.
- Near full employment with an unemployment rate of just 1.2%.
Mountain Brook Quick Facts
How Mountain Brook Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 22,160 | 22,029 | -0.6% |
| Median household income | $191,128 | $201,479 | +5.4% |
| Median home value | $891,300 | $916,300 | +2.8% |
How Mountain Brook Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 53 | National average: 61
Education
Educational Attainment (Adults 25+)
Mountain Brook Rankings in Alabama
Explore Alabama Rankings
Other Cities in Jefferson County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Birmingham | 198,173 | $46,051 | 24.7% | $158,800 |
| Hoover | 92,642 | $109,253 | 5.1% | $412,200 |
| Vestavia Hills | 38,616 | $134,369 | 10.0% | $530,000 |
| Homewood | 27,829 | $94,485 | 8.9% | $558,500 |
| Trussville | 26,673 | $123,275 | 1.1% | $370,300 |
| Bessemer | 25,400 | $39,613 | 28.0% | $135,900 |
| Helena | 21,769 | $115,139 | 3.2% | $330,700 |
| Gardendale | 16,534 | $82,192 | 4.3% | $252,600 |
| Hueytown | 16,414 | $62,784 | 16.2% | $155,300 |
| Center Point | 15,914 | $56,417 | 14.3% | $151,700 |
Cities Similar to Mountain Brook
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Helena | 21,769 | $115,139 | $330,700 | 51.4% | 3.2% |
| Trussville | 26,673 | $123,275 | $370,300 | 45.6% | 1.1% |
| Pelham | 24,827 | $101,094 | $299,800 | 47.2% | 6.7% |
| Fairhope | 24,190 | $94,274 | $430,900 | 53.5% | 8.2% |
| Oxford | 22,063 | $74,268 | $170,900 | 24.8% | 15.8% |
Population Overview
Mountain Brook is a small city located in Alabama, within Jefferson County. The total population is 22,029. It ranks as the 30th most populous out of 592 Census-designated places in Alabama.
Age Demographics
The median age in Mountain Brook is 42.9 years. This is 9% higher than the state median of 39.3 years. With 29.1% of the population under 18, Mountain Brook has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Mountain Brook is $201,479. This is 215% higher than the state median of $63,999. It is also 150% higher than the national median of $80,734. The poverty rate stands at 3.2%. This is 79% lower than the state poverty rate of 15.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 1.2%. This is 75% lower than the state rate of 4.7%. The median home value is $916,300. Housing costs are 337% higher than the state median of $209,900. The home-value-to-income ratio is 4.5x. 89.9% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 70.2%.
Race & Ethnicity
Mountain Brook has a predominantly White (non-Hispanic) population, comprising 95.1% of all residents. Hispanic or Latino residents account for 0.9%. The Black or African American population (0.6%) is well below the state average of 25.6%. The Hispanic or Latino population (0.9%) is well below the state average of 5.6%.
Education
88.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Mountain Brook in the top 10% of all cities in the state for educational attainment. This is 212% higher than the state rate of 28.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 99.7%. Notably, 39.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mountain Brook, Alabama is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Alabama state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 592 Census-designated places in Alabama. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Mountain Brook, Alabama?
Mountain Brook, Alabama has a population of 22,029 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mountain Brook, AL?
The median household income in Mountain Brook is $201,479, which is 150% higher than the national median of $80,734.
What is the poverty rate in Mountain Brook, AL?
The poverty rate in Mountain Brook is 3.2%. This means approximately 704 residents live below the federal poverty line.
What is the racial makeup of Mountain Brook, Alabama?
Mountain Brook's population is 95.1% White, 0.6% Black, 0.9% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Mountain Brook, AL?
The median home value in Mountain Brook is $916,300. The home-value-to-income ratio is 4.5x.
How educated is Mountain Brook, Alabama?
88.6% of adults (25+) in Mountain Brook hold a bachelor's degree or higher, and 39.5% hold a graduate or professional degree.