Mountain Brook, Alabama Population 2020

20,128
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Mountain Brook is a city located in Alabama. With a 2020 population of 20,128, it is the 32nd largest city in Alabama and the 1836th largest city in the United States. Mountain Brook is currently declining at a rate of -0.44% annually and its population has decreased by -1.40% since the most recent census, which recorded a population of 20,413 in 2010. Mountain Brook reached it's highest population of 20,604 in 2000. Spanning over 13 miles, Mountain Brook has a population density of 1,569 people per square mile.

The average household income in Mountain Brook is $214,489 with a poverty rate of 3.67%. The median rental costs in recent years comes to $1,281 per month, and the median house value is $602,200. The median age in Mountain Brook is 40.6 years, 39.8 years for males, and 41.3 years for females. For every 100 females there are 91.2 males.

Mountain Brook Demographics

According to the most recent ACS, the racial composition of Mountain Brook was:

  • White: 96.77%
  • Asian: 1.62%
  • Black or African American: 0.95%
  • Two or more races: 0.43%
  • Native Hawaiian or Pacific Islander: 0.14%
  • Native American: 0.09%
  • Other race: 0.00%
The current population of Mountain Brook, Alabama is 20,128, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 20,306.The last official US Census in 2010 recorded the population at 20,413.

Mountain Brook, Alabama Population 2020

Population by Race

Race Population Percentage
White19,80496.77%
Asian3321.62%
Black or African American1950.95%
Two or More Races870.43%
Native Hawaiian and Other Pacific Islander290.14%
American Indian and Alaska Native190.09%
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Mountain Brook Population Pyramid 2020

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Mountain Brook Median Age

40.6


Total

39.8


Male

41.3


Female

Mountain Brook Adults

There are 14,489 adults, (3,642 of whom are seniors) in Mountain Brook.

Mountain Brook Age Dependency

88.7

Age Dependency Ratio

33.6

Old Age Dependency Ratio

55.1

Child Dependency Ratio

Mountain Brook Sex Ratio

Female

10,706

52.31%

Male

9,760

47.69%

Mountain Brook Households and Families

Mountain Brook Renter vs Owner Occupied by Household Type

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Mountain Brook Household Types

Type Owner Renter
Married93.4%6.6%
All86%14%
Female69.4%30.6%
Non Family67.4%32.6%
Male62.7%37.3%

86.0%

Rate of Home Ownership

Type Count Average Size Owned
All7,4102.7586
Married5,2883.2293.4
Non Family1,5791.1567.4
Female4412.8569.4
Male1022.962.7

3.15

Average Family Size

2.75

Average Household Size

1.2%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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Mountain Brook Education

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Education Attained Count Percentage
Less Than 9th Grade110.08%
9th to 12th Grade530.40%
High School Graduate3832.85%
Some College1,1898.86%
Associates Degree3632.71%
Bachelors Degree6,11345.56%
Graduate Degree5,30439.53%
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Mountain Brook Educational Attainment by Race

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Name Total High School Bachelors
White12,84812,78910,982
Black173168111
Asian169169117
Hispanic155155150
Multiple Races353528
Islander292929
Native American191912

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 100.00%.

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Name Average Male Female
Overall$82,124$117,996$50,374
Less Than High School$$$
High School Grad$39,688$49,531$
Some College$38,767$38,803$37,404
Bachelors Degree$80,481$107,128$41,388
Graduate Degree$106,351$145,039$62,769

$82,124

Average Earnings

$117,996

Average Male

$50,374

Average Female

Mountain Brook Language

Mountain Brook Language by Age

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Mountain Brook Language

95.92% of Mountain Brook residents speak only English, while 4.08% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.33% of the population.

Mountain Brook Poverty

Mountain Brook Poverty by Race

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Name Total In Poverty Poverty Rate
White19,5537313.74%
Black193147.25%
Asian33230.90%

3.67%

Overall Poverty Rate

2.37%

Male Poverty Rate

4.85%

Female Poverty Rate

Poverty in Mountain Brook

The race most likely to be in poverty in Mountain Brook is Black, with 7.25% below the poverty level.

The race least likely to be in poverty in Mountain Brook is Asian, with 0.90% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.20%. Among those working part-time, it was 4.43%, and for those that did not work, the poverty rate was 7.40%.

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Name Poverty
Less Than High School42.86%
Some College10.45%
High School10.44%
Bachelors or Greater1.73%
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Name Poverty
Female Unemployed29.17%
Male Unemployed13.82%
Female Employed1.83%
Male Employed0.70%

Mountain Brook Income

Mountain Brook Income by Household Type

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Name Median Mean
Households$143,221$214,489
Families$175,116$247,567
Married Families$190,216-
Non Families$72,061$86,352
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Mountain Brook Marital Status

Mountain Brook Marital Status

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Marriage Rates

69.3%

Overall Marriage Rate

75.9%

Male Marriage Rate

63.8%

Female Marriage Rate

Mountain Brook Married by Age and Sex

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Mountain Brook Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Mountain Brook Marital Status by Race

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Mountain Brook Veterans

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794

Number of Veterans

774

Male Veterans

20

Female Veterans

War Veterans
Vietnam306
First Gulf War184
World War II90
Korea61
Second Gulf War48
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Age Group Veterans
75+299
65 to 74229
35 to 54173
55 to 6489
18 to 344
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Name Veterans % of Total
White7465.32%
Hawaiian29100.00%
Indian19100.00%
Hispanic127.74%

Mountain Brook Veterans by Education

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0.50%

Veteran Poverty Rate

27.96%

Veteran Disability Rate

Mountain Brook Employment Status

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61%

Labor Force Participation

59.8%

Employment Rate

1.9%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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63.86%

Born in Alabama

97.10%

Native Born

2.90%

Foreign Born

1.20%

Non Citizen

1.70%

Naturalized

Place of Birth

97.10% of Mountain Brook residents were born in the United States, with 63.86% having been born in Alabama. 1.20% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202020,128-89-0.44%
201920,217-89-0.44%
201820,306-65-0.32%
201720,371-89-0.43%
201620,460-88-0.43%
201520,548-43-0.21%
201420,5913481.72%
201320,243-56-0.28%
201220,299-73-0.36%
201120,372-53-0.26%
201020,425-179-0.09%
200020,6047940.39%
199019,810920.05%
198019,7182440.12%
197019,4746,7944.38%
196012,6804,3214.25%
19508,3590.00%