Mountain Brook, Alabama Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Mountain Brook, AL Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A
Health Above average
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A+
Income Top grade
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A+
Education Top grade
Source: Map AI Methodology
Population
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| Population | 23,287 | 5,083,438 | 337,468,954 |
| Population density (per sq mi) | 1810.8 | 97.0 | 86.4 |
| Population growth (%/yr) | 1.56% | 0.62% | 0.59% |
| Median age | 40.6 | 38.0 | 37.3 |
| Households | 9,335 | 1,996,169 | 130,235,071 |
Population in Mountain Brook grew by 10.0% from 2009 to 2024, reaching 23,287 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Mountain Brook is Gen X, aged 45–60, at 22.6% of residents. That is 2.7 points above Alabama as a whole.
- Gen Z 13–28 4,154 17.8% -3.6 pts
- Millennials 29–44 4,378 18.8% -1.9 pts
- Gen X 45–60 5,274 22.6% +2.7 pts
- Boomers 61–79 4,171 17.9% -0.1 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Alabama, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 53.2% of the people living in Mountain Brook and men 46.8%.
- Women 53.2% Alabama 51.5%
- Men 46.8% Alabama 48.5%
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Economy
Mountain Brook has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| Median household income | $160,102 | $64,544 | $80,455 |
| Income growth (%/yr) | 6.17% | 4.68% | 4.80% |
| Unemployment rate | 2.7% | 4.7% | 5.2% |
The median household income in Mountain Brook is about 148% higher than in Alabama.
Housing
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| Median home price | $312,505 | $160,474 | $248,835 |
| Median rent | $1,575 | $1,007 | $1,407 |
| Homeownership rate | 81.8% | 70.2% | 65.2% |
The median home price in Mountain Brook is about 16.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,575 per month for that long.
Commute Time & Mobility
Commuters in Mountain Brook spend about 35 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 144 hours, about 6.0 full days, spent commuting.
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 17.3 | 22.1 | 22.4 |
| Round-trip commute (min) | 34.6 | 44.3 | 44.8 |
| Yearly time spent (hours) | 144 | 184 | 187 |
| Estimated yearly cost | $4,471 | $5,717 | $5,790 |
| Work from home | 16.2% | 8.8% | 15.0% |
| Highway traffic (vehicles/day) | 22,801 | 8,636 | 8,813 |
| Local road traffic (vehicles/day) | 3,978 | 1,193 | 1,355 |
The average commute time in Mountain Brook is 17 minutes, shorter than the 22 minutes in Alabama.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Mountain Brook has a education index of A+, which means it is exceptionally educated.
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 76.2% | 24.9% | 31.6% |
| Average household size | 2.47 | 2.48 | 2.53 |
Health
Mountain Brook has a health index of A, which means it is very healthy.
| Metric | Mountain Brook | Alabama Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 81.1 | 74.7 | 78.3 |
| Self-rated poor health | 9.0% | 23.4% | 16.3% |
| Smokers | 8.3% | 22.1% | 19.0% |
Mountain Brook, AL Compared With Nearby Cities
Mountain Brook, AL is the smallest of the 4 cities compared here, 23,287 residents against a local median of 32,245. Where Mountain Brook, AL breaks from the cities next to it is median household income, sitting 78% above the local median of $89,778 at $160,102. That is the better end of the local range on this measure.
The cities themselves spread $62,990 on median household income, so Mountain Brook, AL sits at one end of an already wide local range rather than apart from it. Mountain Brook, AL has the highest median household income of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Mountain Brook, AL | 23,287 | $160,102 #1/4 | $312,505 #2/4 | 17.3 min #2/4 |
| Vestavia Hills, AL | 32,245 | $112,165 | $314,215 | 18.4 min |
| Birmingham, AL | 207,255 | $49,175 | $88,729 | 20.6 min |
| Homewood, AL | 27,106 | $89,778 | $303,414 | 16.5 min |
Frequently Asked Questions
Common questions about Mountain Brook, Alabama.
How big is Mountain Brook, Alabama by population?
About 23,287 people live in Mountain Brook, Alabama, in 9,335 households of 2.5 people on average. The median age is 40.6, so residents are older than the U.S. median of 37.3 by about 3 years.
Is Mountain Brook, Alabama urban or rural?
Averaged over its land area, Mountain Brook, Alabama has 1,811 people per square mile, a density typical of urban and suburban areas. That is about 21 times the U.S. average of 86.
Is Mountain Brook, Alabama an affordable place to live?
The median home costs 2.0 times the median household income ($312,505 against $160,102), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,575 a month takes about 12% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Mountain Brook, Alabama?
Unemployment in Mountain Brook, Alabama is only 2.7%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How educated are people in Mountain Brook, Alabama?
76.2% of adults in Mountain Brook, Alabama hold a bachelor's degree or higher (about 8 in 10), well above the U.S. share of 31.6%.
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